Posts made by vladimir

@gohan I use OpenHAB 2. As I understand it, it also integrates well with Tasmota.

@electrik Thanks you! Now I will order everything I need on TaoBao in China. I just yesterday learned about the existence of the Sonoff module with 433 MHz radio support and wall switches for them.

@electrik Now I just read the description of this firmware. To do this, I need to understand how to work with MQTT. I hoped to find a simpler solution. Ethernet gateway is much easier to connect.

Hello!
Maybe someone here has a code for Sonoff RF with support 433 MHz receiver?

In my opinion, paired with a wireless wall switch, this will turn out to be quite a cheap and convenient solution for lighting control.

The cost of a set of relay and switch about 10 dollars.

If anyone is interested in this project, then I hasten to inform you, good news!
Today I came across a device "Venta Connected (WiFi control for Venta LW45 humidifier)" from the user @reinhold
Here is a link to the device page: https://www.openhardware.io/view/539/Venta-Connected-WiFi-control-for-Venta-LW45-humidifier
@reinhold, thank you for this project!

I tried to adapt the code of this device to fit my needs. Here's what I got:

#define SKETCH_NAME "XiaomiSmartKettle"
#define SKETCH_VERSION "1.0"

#define MY_DEBUG                     // Enable debug prints to serial monitor
#define MY_RADIO_NRF24               // Enable and select radio type attached
#define MY_REPEATER_FEATURE          // Enabled repeater feature for this node

#include <SPI.h>
#include <MySensors.h> 

/**************************************
//***** MySensors settings
 **************************************/

#define WAITING_TIME 250

// Pin Setup:
// Button & LED Actions (output):
//   - PIN_BOIL  D3 ... Boil button press
//   - PIN_WARM   D4 ... Warm button press
// LED detection (input, pullup):
//   - LED_BOIL   D5 ... Boil LED 
//   - LED_WARMPOWER  D6 ... Warm power LED (Warming is on, but the heating is not involved yet)
//   - LED_WARMACT  D7 ... Warm action LED (Warming is on and the heater is running)

#define PIN_BOIL 3
#define PIN_WARM 4
#define LED_BOIL 5
#define LED_WARMPOWER 6
#define LED_WARMACT 7

#define ID_BOIL 1
#define ID_WARMPOWER 2
#define ID_WARMACT 3
//#define ID_REPEATER 254



bool boil = false;
bool warmpower = false;
bool warmact = false;

bool prev_boil = false;
bool prev_warmpower = false;
bool prev_warmact = false;


MyMessage msg_boil(ID_BOIL, V_STATUS);
MyMessage msg_warmpower(ID_WARMPOWER, V_STATUS);
MyMessage msg_warmact(ID_WARMACT, V_STATUS);


/**************************************
 ***** Implementation
 **************************************/
void setup() {
  // PIN modes
  pinMode(PIN_BOIL,OUTPUT);
  pinMode(PIN_WARM,OUTPUT);
  pinMode(LED_BOIL,INPUT_PULLUP);
  pinMode(LED_WARMPOWER,INPUT_PULLUP);
  pinMode(LED_WARMACT,INPUT_PULLUP);

}

void presentation() {
  present(ID_BOIL, S_BINARY, "Kettle BOIL", true);
  present(ID_WARMPOWER, S_BINARY, "Kettle WARM POWER", true);
  present(ID_WARMACT, S_BINARY, "Kettle WARM ACTION", true);
//  present(ID_REPEATER, S_ARDUINO_REPEATER_NODE);

  sendSketchInfo(SKETCH_NAME, SKETCH_VERSION);
}

void loop() {
  readKettleState();

  bool changed = false;
  if (boil != prev_boil) {
    Serial.println(F("BOIL changed from "));Serial.print(prev_boil); Serial.print(F(" to ")); Serial.println(boil);
    changed = true;
    send(msg_boil.set(boil));
    prev_boil = boil;
  }
  if (warmpower != prev_warmpower) {
    Serial.println(F("WARMPOWER changed from "));Serial.print(prev_warmpower); Serial.print(F(" to ")); Serial.println(warmpower);
    changed = true;
    send(msg_warmpower.set(warmpower));
    prev_warmpower = warmpower;
  }
  if (warmact != prev_warmact) {
    Serial.println(F("WARMACT changed from "));Serial.print(prev_warmact); Serial.print(F(" to ")); Serial.println(warmact);
    changed = true;
    send(msg_warmact.set(warmact));
    prev_warmact = warmact;
  }

  wait(WAITING_TIME);
}

void receive(const MyMessage &message) {
  readKettleState();
  switch (message.sensor) {
    
    case ID_BOIL:
        if (message.type == V_STATUS) {
          bool newstate = message.getBool();
          Serial.print(F("Incoming message to set BOIL to: "));
          Serial.println(newstate);
          if (boil != newstate) {
            pressButton(PIN_BOIL);
            Serial.println(F("   => Emulating button press to toggle BOIL"));
          } else {
            Serial.println(F("   => No need to change BOIL state"));
          }
        } else {
          Serial.print(F("Incoming message for ID_BOIL, unknown message type "));
          Serial.println(message.type);
        }
        break;
      
    case ID_WARMPOWER:
        if (message.type == V_STATUS) {
          bool newstate = message.getBool();
          Serial.print(F("Incoming message to set WARMPOWER to: "));
          Serial.println(newstate);
          if (warmpower != newstate) {
            pressButton(PIN_WARM);
            Serial.println(F("   => Emulating button press to toggle WARMPOWER"));
          } else {
            Serial.println(F("   => No need to change WARMPOWER state"));
          }
        } else {
          Serial.print(F("Incoming message for ID_WARMPOWER, unknown message type "));
          Serial.println(message.type);
        }
        break;

    case ID_WARMACT:
        if (message.type == V_STATUS) {
          bool newstate = message.getBool();
          Serial.print(F("Incoming message to set WARMACT to: "));
          Serial.println(newstate);
          
          saveState(ID_WARMACT, newstate);
          if (newstate==1) {
            ledOn(LED_WARMACT);
          } else {
            ledOff(LED_WARMACT);
          }
        } else {
          Serial.print(F("Incoming message for ID_WARMACT, unknown message type "));
          Serial.println(message.type);
        }
        break;
        
    default:
        Serial.print(F("Incoming message for sensor "));
        Serial.print(message.sensor);
        Serial.print(F(", which cannot receive any messages, type="));
        Serial.println(message.type);
  }
}


void readKettleState() {
  boil = digitalRead(LED_BOIL) == LOW;
  warmpower = digitalRead(LED_WARMPOWER) == LOW;
  warmact = digitalRead(LED_WARMACT) == LOW;
}



void pressButton(int pin) {
  digitalWrite(pin, HIGH);
  wait(100);
  digitalWrite(pin, LOW);
}
void ledOn(int pin) {
  digitalWrite(pin, HIGH);
}
void ledOff(int pin) {
  digitalWrite(pin, LOW);
}

I have not yet verified this code on the device, since I do not have all the necessary components. But it compiled without errors, and that makes me happy already!

I have only the fear that the function of warming the water will not work correctly, since the kettle has two LEDs that display the status:
LED_WARMPOWER - Warming is on, but the heating is not involved yet
LED_WARMACT - Warming is on and the heater is running.

I would be grateful if you could help me fix this. Perhaps you will notice other errors in the code, please tell me about them.

@alexsh1 In fact, the purpose of this post is not to understand "why," but to understand "how" to automate the device so that there is feedback from it. At the code level.

@omemanti It has protection against heating without water. But, I do not plan to launch it when I am away from home. I just want to use it in automation scripts, for example in the morning when the alarm sounds a wake-up call.

@yveaux Excuse me. I promise not to do it again!

@alexsh1 I do not see problems that do not allow connecting to the control panel of the kettle.
These images I took on the Internet:

I have already done this with a Chinese-made desk lamp. For this, I used a sketch of the relay node. But everything was easier there, I removed the button and connected the output from the Arduino instead. I rarely use a desk lamp, so I allowed myself to sacrifice a button for the sake of experimentation. I usually manage it through Siri.
On the teapot, I still want to leave the physical buttons, and get feedback about their condition.

Colleagues!
I am writing in this thread, because here are the most active users of the forum and the system MySensors.
Perhaps you can help me with the solution of my problem: Improvement Xiaomi smart kettle (I need help!)
Maybe you had similar projects...
Then, I can finally publish a new project in this thread.

@petewill Do you have any feedback with the device in the sketch? I was thinking of getting it from LEDs.

@petewill maybe you know how to solve my problem?
Today I created a forum thread describing my idea: Improvement Xiaomi smart kettle (I need help!)
Your topic is closest to mine. But unfortunately I have very little experience to figure everything out on my own.

Hello!
Recently, I purchased a smart Xiaomi kettle. But to my disappointment, he seemed quite stupid. I can not turn it on remotely, I can only change its settings from the application on the smartphone. Therefore, I thought about its automation with the help of MySensors.

On the panel of the kettle there are two touch buttons and two LEDs - boiling and heating. I want to connect the MySensors node to them. The activation signal is applied to the buttons, and the work status is received from the LEDs.

Perhaps you have already encountered similar projects in this forum... Please share links to them here.

Perhaps you have a similar sketch in your collection? I will be very grateful if you share it.

I am sure that such a device will be useful to many participants in this forum, to improve their not very smart devices.

Hello!

I have two nodes:

1. Dimmer (encoder with switch)
2. RGB LED strip

Please tell me how to make a rule for controlling two parameters (on / off, brightness) of an RGB LED strip using a dimmer unit.

Perhaps someone already uses this rule in OpenHAB?

@hard-shovel thank you very much! Now everything works!
I will give here a full sketch. I'm sure it will be useful to many.

/**
 * The MySensors Arduino library handles the wireless radio link and protocol
 * between your home built sensors/actuators and HA controller of choice.
 * The sensors forms a self healing radio network with optional repeaters. Each
 * repeater and gateway builds a routing tables in EEPROM which keeps track of the
 * network topology allowing messages to be routed to nodes.
 *
 * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
 * Copyright (C) 2013-2015 Sensnology AB
 * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
 *
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 *******************************
 * DESCRIPTION
 * This sketch provides an example how to implement a dimmable led light node with a rotary 
 * encoder connected for adjusting light level. 
 * The encoder has a click button which turns on/off the light (and remembers last dim-level) 
 * The sketch fades the light (non-blocking) to the desired level. 
 *
 * Default MOSFET pin is 3
 * 
 *  Arduino      Encoder module
 *  ---------------------------
 *  5V           5V (+)  
 *  GND          GND (-)
 *  4            CLK (or putput 1)
 *  5            DT  (or output 1) 
 *  6            SW (Switch/Click)  
 */

 
// Enable debug prints
#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69

#include <SPI.h>
#include <MySensors.h>  
#include <Bounce2.h>
#include <Encoder.h>

#define LED_PIN 3           // Arduino pin attached to MOSFET Gate pin
#define KNOB_ENC_PIN_1 4    // Rotary encoder input pin 1
#define KNOB_ENC_PIN_2 5    // Rotary encoder input pin 2
#define KNOB_BUTTON_PIN 6   // Rotary encoder button pin 
#define FADE_DELAY 10       // Delay in ms for each percentage fade up/down (10ms = 1s full-range dim)
#define SEND_THROTTLE_DELAY 400 // Number of milliseconds before sending after user stops turning knob
#define SN "DimmableLED /w button"
#define SV "1.3"

#define CHILD_ID_LIGHT 1

#define EEPROM_DIM_LEVEL_LAST 1
#define EEPROM_DIM_LEVEL_SAVE 2

#define LIGHT_OFF 0
#define LIGHT_ON 1

int dimValue;
int fadeTo;
int fadeDelta;
byte oldButtonVal;
bool changedByKnob=false;
bool sendDimValue=false;
unsigned long lastFadeStep;
unsigned long sendDimTimeout;
char convBuffer[10];

MyMessage dimmerMsg(CHILD_ID_LIGHT, V_DIMMER);
MyMessage statusMsg(CHILD_ID_LIGHT, V_STATUS);    // Addition for Status update to OpenHAB Controller
Encoder knob(KNOB_ENC_PIN_1, KNOB_ENC_PIN_2);  
Bounce debouncer = Bounce(); 

void setup()  
{ 
  // Set knob button pin as input (with debounce)
  pinMode(KNOB_BUTTON_PIN, INPUT);
  digitalWrite(KNOB_BUTTON_PIN, HIGH);
  debouncer.attach(KNOB_BUTTON_PIN);
  debouncer.interval(5);
  oldButtonVal = debouncer.read();

  // Set analog led pin to off
  analogWrite( LED_PIN, 0);

  // Retreive our last dim levels from the eprom
  fadeTo = dimValue = 0;
  byte oldLevel = loadLevelState(EEPROM_DIM_LEVEL_LAST);
  Serial.print("Sending in last known light level to controller: ");
  Serial.println(oldLevel);  
  send(dimmerMsg.set(oldLevel), true);
  Serial.println("Ready to receive messages...");  
}

void presentation() {
  // Send the Sketch Version Information to the Gateway
  present(CHILD_ID_LIGHT, S_DIMMER);
  sendSketchInfo(SN, SV);
}

void loop()      
{
  // Check if someone turned the rotary encode
  checkRotaryEncoder();
  
  // Check if someone has pressed the knob button
  checkButtonClick();
  
  // Fade light to new dim value
  fadeStep();
}

void receive(const MyMessage &message)
{
  if (message.type == V_STATUS) {
    // Incoming on/off command sent from controller ("1" or "0")
    int lightState = message.getString()[0] == '1';
    int newLevel = 0;
    if (lightState==LIGHT_ON) {
      // Pick up last saved dimmer level from the eeprom
      newLevel = loadLevelState(EEPROM_DIM_LEVEL_SAVE);
    } 
    // Send dimmer level back to controller with ack enabled
    send(dimmerMsg.set(newLevel), true);
    // We do not change any levels here until ack comes back from gateway 
    return;
  } else if (message.type == V_PERCENTAGE) {
    // Incoming dim-level command sent from controller (or ack message)
    fadeTo = atoi(message.getString(convBuffer));
    // Save received dim value to eeprom (unless turned off). Will be
    // retreived when a on command comes in
    if (fadeTo != 0)
      saveLevelState(EEPROM_DIM_LEVEL_SAVE, fadeTo);
  }
  saveLevelState(EEPROM_DIM_LEVEL_LAST, fadeTo);
  
  Serial.print("New light level received: ");
  Serial.println(fadeTo);

  if (!changedByKnob) 
    knob.write(fadeTo<<1);             //### need to multiply by two (using Shift left)
    
  // Cancel send if user turns knob while message comes in
  changedByKnob = false;
  sendDimValue = false;

  // Stard fading to new light level
  startFade();
}



void checkRotaryEncoder() {
  long encoderValue = knob.read()>>1 ;      //### Divide by 2 (using shift right) 

  if (encoderValue > 100) {   
    encoderValue = 100;       
    knob.write(200);                        //### max value now 200 due to divide by 2
  } else if (encoderValue < 0) {
    encoderValue = 0;
    knob.write(0);
  }

  if (encoderValue != fadeTo) {    
    fadeTo = encoderValue;                   
    changedByKnob = true;
    startFade();
  }
}

void checkButtonClick() {
  debouncer.update();
  byte buttonVal = debouncer.read();
  byte newLevel = 0;
  if (buttonVal != oldButtonVal && buttonVal == LOW) {
    if (dimValue==0) {
      // Turn on light. Set the level to last saved dim value
      int saved = loadLevelState(EEPROM_DIM_LEVEL_SAVE);
      newLevel = saved > 1 ? saved : 100;           // newLevel = saved > 0 ? saved : 100;     
    } 
    send(dimmerMsg.set(newLevel),true);
    send(statusMsg.set(newLevel>0 ? "1" : "0")); // Addition for Status update to OpenHAB Controller,   No Echo
  }
  oldButtonVal = buttonVal;
}

void startFade() {
  fadeDelta = ( fadeTo - dimValue ) < 0 ? -1 : 1;
  lastFadeStep = millis();
}

// This method provides a graceful none-blocking fade up/down effect
void fadeStep() {
  unsigned long currentTime  = millis();
  if ( dimValue != fadeTo && currentTime > lastFadeStep + FADE_DELAY) {
    dimValue += fadeDelta;
    analogWrite( LED_PIN, (int)(dimValue / 100. * 255) );
    lastFadeStep = currentTime;
    
    Serial.print("Fading level: ");
    Serial.println(dimValue);

    if (fadeTo == dimValue && changedByKnob) {
      sendDimValue = true;
      sendDimTimeout = currentTime;
    }
  } 
  // Wait a few millisecs before sending in new value (if user still turns the knob)
  if (sendDimValue && currentTime > sendDimTimeout + SEND_THROTTLE_DELAY)  {
     // We're done fading.. send in new dim-value to controller.
     // Send in new dim value with ack (will be picked up in incomingMessage) 
    send(dimmerMsg.set(dimValue), true); // Send new dimmer value and request ack back
    sendDimValue = false;
  }
}

// Make sure only to store/fetch values in the range 0-100 from eeprom
int loadLevelState(byte pos) {
  return min(max(loadState(pos),0),100);
}
void saveLevelState(byte pos, byte data) {
  saveState(pos,min(max(data,0),100));
}

@hard-shovel switch is working, thanks! Only while he behaves a little unpredictably: video 1, video 2

@hard-shovel at compilation produces an error of the following content:

/Users/vladimirpetrov/Documents/Arduino/Dimmer/Dimmer.ino: In function 'void setup()':
Dimmer:106: error: 'newLevel' was not declared in this scope
   send(statusMsg.set(newLevel > 0 ? "1" : "0"),true); // Addition for Status update to OpenHAB Controller
                      ^
exit status 1
'newLevel' was not declared in this scope

@hard-shovel thanks for the answer!
The encoder started working as it should! There was only a problem with the switch in OpenHAB. It does not switch when you press a button on the device. The feeling that OpenHAB does not get the status of this switch. The device works well.
In this video, I clearly demonstrated the problem: https://cloud.mail.ru/public/4fee/HiVX5ZSxh

Maybe you know what the problem is? I made all the changes you wrote to me in the previous message. Here is the updated device code:

/**
 * The MySensors Arduino library handles the wireless radio link and protocol
 * between your home built sensors/actuators and HA controller of choice.
 * The sensors forms a self healing radio network with optional repeaters. Each
 * repeater and gateway builds a routing tables in EEPROM which keeps track of the
 * network topology allowing messages to be routed to nodes.
 *
 * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
 * Copyright (C) 2013-2015 Sensnology AB
 * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
 *
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 *******************************
 *
 * REVISION HISTORY
 * Version 1.0 - Developed by Bruce Lacey and GizMoCuz (Domoticz)
 * Version 1.1 - Modified by hek to incorporate a rotary encode to adjust 
 *                                light level locally at node
 * 
 * DESCRIPTION
 * This sketch provides an example how to implement a dimmable led light node with a rotary 
 * encoder connected for adjusting light level. 
 * The encoder has a click button which turns on/off the light (and remembers last dim-level) 
 * The sketch fades the light (non-blocking) to the desired level. 
 *
 * Default MOSFET pin is 3
 * 
 *  Arduino      Encoder module
 *  ---------------------------
 *  5V           5V (+)  
 *  GND          GND (-)
 *  4            CLK (or putput 1)
 *  5            DT  (or output 1) 
 *  6            SW (Switch/Click)  
 */

 
// Enable debug prints
#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69

#include <SPI.h>
#include <MySensors.h>  
#include <Bounce2.h>
#include <Encoder.h>

#define LED_PIN 3           // Arduino pin attached to MOSFET Gate pin
#define KNOB_ENC_PIN_1 4    // Rotary encoder input pin 1
#define KNOB_ENC_PIN_2 5    // Rotary encoder input pin 2
#define KNOB_BUTTON_PIN 6   // Rotary encoder button pin 
#define FADE_DELAY 10       // Delay in ms for each percentage fade up/down (10ms = 1s full-range dim)
#define SEND_THROTTLE_DELAY 400 // Number of milliseconds before sending after user stops turning knob
#define SN "DimmableLED /w button"
#define SV "1.2"

#define CHILD_ID_LIGHT 1

#define EEPROM_DIM_LEVEL_LAST 1
#define EEPROM_DIM_LEVEL_SAVE 2

#define LIGHT_OFF 0
#define LIGHT_ON 1

int dimValue;
int fadeTo;
int fadeDelta;
byte oldButtonVal;
bool changedByKnob=false;
bool sendDimValue=false;
unsigned long lastFadeStep;
unsigned long sendDimTimeout;
char convBuffer[10];

MyMessage dimmerMsg(CHILD_ID_LIGHT, V_DIMMER);
Encoder knob(KNOB_ENC_PIN_1, KNOB_ENC_PIN_2);  
Bounce debouncer = Bounce(); 

void setup()  
{ 
  // Set knob button pin as input (with debounce)
  pinMode(KNOB_BUTTON_PIN, INPUT);
  digitalWrite(KNOB_BUTTON_PIN, HIGH);
  debouncer.attach(KNOB_BUTTON_PIN);
  debouncer.interval(5);
  oldButtonVal = debouncer.read();

  // Set analog led pin to off
  analogWrite( LED_PIN, 0);

  // Retreive our last dim levels from the eprom
  fadeTo = dimValue = 0;
  byte oldLevel = loadLevelState(EEPROM_DIM_LEVEL_LAST);
  Serial.print("Sending in last known light level to controller: ");
  Serial.println(oldLevel);  
  send(dimmerMsg.set(oldLevel), true);   

  Serial.println("Ready to receive messages...");  
}

void presentation() {
  // Send the Sketch Version Information to the Gateway
  present(CHILD_ID_LIGHT, S_DIMMER);
  sendSketchInfo(SN, SV);
}

void loop()      
{
  // Check if someone turned the rotary encode
  checkRotaryEncoder();
  
  // Check if someone has pressed the knob button
  checkButtonClick();
  
  // Fade light to new dim value
  fadeStep();
}

void receive(const MyMessage &message)
{
  if (message.type == V_STATUS) {
    // Incoming on/off command sent from controller ("1" or "0")
    int lightState = message.getString()[0] == '1';
    int newLevel = 0;
    if (lightState==LIGHT_ON) {
      // Pick up last saved dimmer level from the eeprom
      newLevel = loadLevelState(EEPROM_DIM_LEVEL_SAVE);
    } 
    // Send dimmer level back to controller with ack enabled
    send(dimmerMsg.set(newLevel), true);
    // We do not change any levels here until ack comes back from gateway 
    return;
  } else if (message.type == V_PERCENTAGE) {
    // Incoming dim-level command sent from controller (or ack message)
    fadeTo = atoi(message.getString(convBuffer));
    // Save received dim value to eeprom (unless turned off). Will be
    // retreived when a on command comes in
    if (fadeTo != 0)
      saveLevelState(EEPROM_DIM_LEVEL_SAVE, fadeTo);
  }
  saveLevelState(EEPROM_DIM_LEVEL_LAST, fadeTo);
  
  Serial.print("New light level received: ");
  Serial.println(fadeTo);

  if (!changedByKnob) 
    knob.write(fadeTo<<1);             //### need to multiply by two (using Shift left)
    
  // Cancel send if user turns knob while message comes in
  changedByKnob = false;
  sendDimValue = false;

  // Stard fading to new light level
  startFade();
}



void checkRotaryEncoder() {
  long encoderValue = knob.read()>>1 ;      //### Divide by 2 (using shift right) 

  if (encoderValue > 100) {   
    encoderValue = 100;       
    knob.write(200);                        //### max value now 200 due to divide by 2
  } else if (encoderValue < 0) {
    encoderValue = 0;
    knob.write(0);
  }

  if (encoderValue != fadeTo) {    
    fadeTo = encoderValue;                   
    changedByKnob = true;
    startFade();
  }
}

void checkButtonClick() {
  debouncer.update();
  byte buttonVal = debouncer.read();
  byte newLevel = 0;
  if (buttonVal != oldButtonVal && buttonVal == LOW) {
    if (dimValue==0) {
      // Turn on light. Set the level to last saved dim value
      int saved = loadLevelState(EEPROM_DIM_LEVEL_SAVE);
      newLevel = saved > 0 ? saved : 100;
    }
    send(dimmerMsg.set(newLevel),true);
  }
  oldButtonVal = buttonVal;
}

void startFade() {
  fadeDelta = ( fadeTo - dimValue ) < 0 ? -1 : 1;
  lastFadeStep = millis();
}

// This method provides a graceful none-blocking fade up/down effect
void fadeStep() {
  unsigned long currentTime  = millis();
  if ( dimValue != fadeTo && currentTime > lastFadeStep + FADE_DELAY) {
    dimValue += fadeDelta;
    analogWrite( LED_PIN, (int)(dimValue / 100. * 255) );
    lastFadeStep = currentTime;
    
    Serial.print("Fading level: ");
    Serial.println(dimValue);

    if (fadeTo == dimValue && changedByKnob) {
      sendDimValue = true;
      sendDimTimeout = currentTime;
    }
  } 
  // Wait a few millisecs before sending in new value (if user still turns the knob)
  if (sendDimValue && currentTime > sendDimTimeout + SEND_THROTTLE_DELAY)  {
     // We're done fading.. send in new dim-value to controller.
     // Send in new dim value with ack (will be picked up in incomingMessage) 
    send(dimmerMsg.set(dimValue), true); // Send new dimmer value and request ack back
    sendDimValue = false;
  }
}

// Make sure only to store/fetch values in the range 0-100 from eeprom
int loadLevelState(byte pos) {
  return min(max(loadState(pos),0),100);
}
void saveLevelState(byte pos, byte data) {
  saveState(pos,min(max(data,0),100));
}

Does anyone use this sketch "DimmableLightWithRotaryEncoderButton"? I take it from the site (https://www.mysensors.org/build/dimmer) and it does not work with OpenHAB 2.

@itbeyond said in Problem with dimmable LED actuator with encoder:

@vladimir I really think you need to look at this in the serial monitor and add some serial.print lines in the associated places in the code to see what is going on.

Can you tell me where exactly to add?

Hi all!

I'm using OpenHAB 2, and I have some problems with the sketch code "DimmableLightWithRotaryEncoderButton".

When the encoder button is pressed, the switch in OpenHAB does not respond.
When turn the encoder knob one step, the value changes in two steps.
Maybe you have encountered such a problem? Or maybe you can share a more modern sketch?

/**
 * The MySensors Arduino library handles the wireless radio link and protocol
 * between your home built sensors/actuators and HA controller of choice.
 * The sensors forms a self healing radio network with optional repeaters. Each
 * repeater and gateway builds a routing tables in EEPROM which keeps track of the
 * network topology allowing messages to be routed to nodes.
 *
 * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
 * Copyright (C) 2013-2015 Sensnology AB
 * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
 *
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 *******************************
 *
 * REVISION HISTORY
 * Version 1.0 - Developed by Bruce Lacey and GizMoCuz (Domoticz)
 * Version 1.1 - Modified by hek to incorporate a rotary encode to adjust 
 *                                light level locally at node
 * 
 * DESCRIPTION
 * This sketch provides an example how to implement a dimmable led light node with a rotary 
 * encoder connected for adjusting light level. 
 * The encoder has a click button which turns on/off the light (and remembers last dim-level) 
 * The sketch fades the light (non-blocking) to the desired level. 
 *
 * Default MOSFET pin is 3
 * 
 *  Arduino      Encoder module
 *  ---------------------------
 *  5V           5V (+)  
 *  GND          GND (-)
 *  4            CLK (or putput 1)
 *  5            DT  (or output 1) 
 *  6            SW (Switch/Click)  
 */


// Enable debug prints
#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69

#include <SPI.h>
#include <MySensors.h>  
#include <Bounce2.h>
#include <Encoder.h>

#define LED_PIN 3           // Arduino pin attached to MOSFET Gate pin
#define KNOB_ENC_PIN_1 4    // Rotary encoder input pin 1
#define KNOB_ENC_PIN_2 5    // Rotary encoder input pin 2
#define KNOB_BUTTON_PIN 6   // Rotary encoder button pin 
#define FADE_DELAY 10       // Delay in ms for each percentage fade up/down (10ms = 1s full-range dim)
#define SEND_THROTTLE_DELAY 400 // Number of milliseconds before sending after user stops turning knob
#define SN "DimmableLED /w button"
#define SV "1.2"

#define CHILD_ID_LIGHT 1

#define EEPROM_DIM_LEVEL_LAST 1
#define EEPROM_DIM_LEVEL_SAVE 2

#define LIGHT_OFF 0
#define LIGHT_ON 1

int dimValue;
int fadeTo;
int fadeDelta;
byte oldButtonVal;
bool changedByKnob=false;
bool sendDimValue=false;
unsigned long lastFadeStep;
unsigned long sendDimTimeout;
char convBuffer[10];

MyMessage dimmerMsg(CHILD_ID_LIGHT, V_DIMMER);
Encoder knob(KNOB_ENC_PIN_1, KNOB_ENC_PIN_2);  
Bounce debouncer = Bounce(); 

void setup()  
{ 
  // Set knob button pin as input (with debounce)
  pinMode(KNOB_BUTTON_PIN, INPUT);
  digitalWrite(KNOB_BUTTON_PIN, HIGH);
  debouncer.attach(KNOB_BUTTON_PIN);
  debouncer.interval(5);
  oldButtonVal = debouncer.read();

  // Set analog led pin to off
  analogWrite( LED_PIN, 0);

  // Retreive our last dim levels from the eprom
  fadeTo = dimValue = 0;
  byte oldLevel = loadLevelState(EEPROM_DIM_LEVEL_LAST);
  Serial.print("Sending in last known light level to controller: ");
  Serial.println(oldLevel);  
  send(dimmerMsg.set(oldLevel), true);   

  Serial.println("Ready to receive messages...");  
}

void presentation() {
  // Send the Sketch Version Information to the Gateway
  present(CHILD_ID_LIGHT, S_DIMMER);
  sendSketchInfo(SN, SV);
}

void loop()      
{
  // Check if someone turned the rotary encode
  checkRotaryEncoder();

  // Check if someone has pressed the knob button
  checkButtonClick();

  // Fade light to new dim value
  fadeStep();
}

void receive(const MyMessage &message)
{
  if (message.type == V_LIGHT) {
    // Incoming on/off command sent from controller ("1" or "0")
    int lightState = message.getString()[0] == '1';
    int newLevel = 0;
    if (lightState==LIGHT_ON) {
      // Pick up last saved dimmer level from the eeprom
      newLevel = loadLevelState(EEPROM_DIM_LEVEL_SAVE);
    } 
    // Send dimmer level back to controller with ack enabled
    send(dimmerMsg.set(newLevel), true);
    // We do not change any levels here until ack comes back from gateway 
    return;
  } else if (message.type == S_DIMMER) {
    // Incoming dim-level command sent from controller (or ack message)
    fadeTo = atoi(message.getString(convBuffer));
    // Save received dim value to eeprom (unless turned off). Will be
    // retreived when a on command comes in
    if (fadeTo != 0)
      saveLevelState(EEPROM_DIM_LEVEL_SAVE, fadeTo);
  }
  saveLevelState(EEPROM_DIM_LEVEL_LAST, fadeTo);

  Serial.print("New light level received: ");
  Serial.println(fadeTo);

  if (!changedByKnob) 
    knob.write(fadeTo); 

  // Cancel send if user turns knob while message comes in
  changedByKnob = false;
  sendDimValue = false;

  // Stard fading to new light level
  startFade();
}



void checkRotaryEncoder() {
  long encoderValue = knob.read();

  if (encoderValue > 100) {
    encoderValue = 100;
    knob.write(100);
  } else if (encoderValue < 0) {
    encoderValue = 0;
    knob.write(0);
  }

  if (encoderValue != fadeTo) { 
    fadeTo = encoderValue;
    changedByKnob = true;
    startFade();
  }
}

void checkButtonClick() {
  debouncer.update();
  byte buttonVal = debouncer.read();
  byte newLevel = 0;
  if (buttonVal != oldButtonVal && buttonVal == LOW) {
    if (dimValue==0) {
      // Turn on light. Set the level to last saved dim value
      int saved = loadLevelState(EEPROM_DIM_LEVEL_SAVE);
      newLevel = saved > 0 ? saved : 100;
    }
    send(dimmerMsg.set(newLevel),true);
  }
  oldButtonVal = buttonVal;
}

void startFade() {
  fadeDelta = ( fadeTo - dimValue ) < 0 ? -1 : 1;
  lastFadeStep = millis();
}

// This method provides a graceful none-blocking fade up/down effect
void fadeStep() {
  unsigned long currentTime  = millis();
  if ( dimValue != fadeTo && currentTime > lastFadeStep + FADE_DELAY) {
    dimValue += fadeDelta;
    analogWrite( LED_PIN, (int)(dimValue / 100. * 255) );
    lastFadeStep = currentTime;

    Serial.print("Fading level: ");
    Serial.println(dimValue);

    if (fadeTo == dimValue && changedByKnob) {
      sendDimValue = true;
      sendDimTimeout = currentTime;
    }
  } 
  // Wait a few millisecs before sending in new value (if user still turns the knob)
  if (sendDimValue && currentTime > sendDimTimeout + SEND_THROTTLE_DELAY)  {
     // We're done fading.. send in new dim-value to controller.
     // Send in new dim value with ack (will be picked up in incomingMessage) 
    send(dimmerMsg.set(dimValue), true); // Send new dimmer value and request ack back
    sendDimValue = false;
  }
}

// Make sure only to store/fetch values in the range 0-100 from eeprom
int loadLevelState(byte pos) {
  return min(max(loadState(pos),0),100);
}
void saveLevelState(byte pos, byte data) {
  saveState(pos,min(max(data,0),100));
}```

Hi all!

I'm using OpenHAB 2, and I have some problems with the sketch code "DimmableLightWithRotaryEncoderButton".

1. When the encoder button is pressed, the switch in OpenHAB does not respond.
2. When you turn the encoder knob one step, the value changes in two steps.

Maybe you have encountered such a problem? Or maybe you can share a more modern sketch?

@tsjoender Thanks for the advice! I'll try to implement the second option.

@lastsamurai Hello!
Did you manage to implement this node?

@otto001 Hello!
Did you manage to implement this node?

Hello!
Can you please tell me how best to implement the remote control of the LED strip using the dimmer? Perhaps this forum already has a similar dimmer node project for remote light control.
I need one node of the LED strip to be controlled by two nodes with dimmers. Dimmers I want to locate in different places, separately from the LED tape.

Hello!
In the continuation of the topic: RGB LED strip
I suggest to everyone who uses RGB LED strips to share their current code.
At the moment I'm using this one: https://forum.mysensors.org/topic/6765/rgb-led-strip/48

@maghac said in RGB LED strip:

Well, it took some time, but here is v1.8 at last!

Maybe you have a sketch option for RGB stripes? Same wonderful, but without white LEDs?

Colleagues, please share your fresh sketches for RGB-strips.

The project of today is not yet connected with Mysensors.
This is a light relay with an IR receiver for the spotlight illuminating the backyard of my friends' house.
In the dark, the relay can be switched off from the remote control (to block the activation of the relay). If the remote is far away from you, then the lock can be removed with the searchlight switch by restarting it.
To understand if the relay is locked, there is a red LED on the case.

@silex Wow! Super! Thank you!

@zboblamont @bjacobse
I plan to make the leakage sensors waterproof, with outwardly exposed contacts made of stainless steel. I plan to lift the contacts 1-2mm from the floor so that when washing floors, when the floor is just a little wet sensor did not work. I really like the sensors from Xiaomi.


I ordered for the sample here are such cases from China:

1 - 31х10mm

2 - 61х20mm

@zboblamont Yes, it is, motorized ball valves.
I meant the reaction to the breakthrough of pipes or flexible connections of sanitary ware.

The other day I finished the first version of the PCB for my system of protection against water leakage. It will have two automatic ball valves, six leakage sensors with wire breakage monitoring and in the future I plan to connect it to the Mysensors.

Here is a prototype collected with the help of Arduino Pro Mini. Arduino Uno is just nearby, but not connected. Do not pay any attention to him.

@gohan Is there a chance to wake up a little toasted?

@crankycoder Many thanks for the idea! I think this is the right direction for solving my question.

@gertsanders many thanks! This is very interesting, I did not previously hear about such a sensor.
I understand correctly that it can be placed in a wooden case and it can work through it? Since the tree does not reflect its waves.
If this is so, will not it respond to the movement of the bed frame or my movements when I'm on the bed?...

@crankycoder This was my first and so far the only idea. To my regret, it did not work. Such a trick turned out only with a switch.

Hello! Tell me please, can I somehow change the color at the same time for a group of nodes? I have several LED color fixtures, I want to change the color of all at once and in one place of the application.

Today I finally finished my second RGB LED lighting in the room. Next is the LED illumination of the perimeter of the bed. Under the bed, I want to place a motion sensor so that it reacts when I get out of bed at night.

Hello!
Recently, I thought about the autonomy of the system in the event of a power outage. In order that in the absence of current in the network of my apartment all the nodes of the system switched to batteries. Make a standalone server and gateway (Raspberry PI) will not be difficult. But I do not particularly understand how to do this with Mysensors nodes in order to preserve their miniature sizes. Do you have any ideas on this?

@sundberg84 At this time, everything is collected on a plastic prototyping board, in the evening I will move all the components to a breadboard from a textolite, perhaps there will be better results.

@sundberg84 Sorry... I incorrectly connected IRLZ44. But last time they were connected correctly. Now everything works well. Only LM2940 slightly heats up, according to my subjective sensations, up to 60-70 degrees. This is normal?
I am very grateful for your help!

@sundberg84 said in RGB LED strip:

Can you measure resistance between VCC and GND?

I completely rebuilt the whole scheme, I used the new components. This time I used Arduino Nano. Connect power to terminal 5V. The situation is repeated again, the microcontroller becomes very hot. But only when the light is on.

Honestly, I never measured the resistance. I hope everything was done right.

@sundberg84 I have version 3.3B. I always thought that this is the correct power connection if the source voltage is more than 3.3 V. And with this power connection I wanted to avoid using a separate voltage regulator for the radio module. If I feed 5V to the VCC input, will there be a logic signal on the terminals 3.3V or 5V? And will not this be detrimental to the controller?

Hello everybody! The connected LED strip lights up, but for some reason the Atmega chip heats up very quickly and strongly. Has anyone come across this?
My connection scheme:

@sundberg84 The connected LED strip lights up, but for some reason the Atmega chip is heated very quickly and strongly. Have you encountered this?
My connection scheme:

@sundberg84 And ... I do not use Easy/Newbie PCB. Will there be enough voltage at the conclusions of Arduino Pro Mini 3.3V for tape management?
I now experimented and accidentally burned the voltage regulator in Arduino Pro Mini 3.3V, applying 12 V to the RAW contact.
Today is clearly not my day...

@sundberg84 Is there a sketch for this device? Where can I find it?

@sundberg84 many thanks!

@sundberg84 Thank you for the clarification! Can you explain to me why you use a combination of 0.1 uF and 10 uF, instead of the recommended 0.47 uF and 22 uF?

@sundberg84 you can write what capacitors and resistors should be placed on the board?

@gohan many thanks!

Here, all that was written in the console:

[00:24:15] openhabian@openHABianPi:~$ git clone https://github.com/mysensors/MySensors.git --branch master
Cloning into 'MySensors'...
remote: Counting objects: 15830, done.
remote: Total 15830 (delta 0), reused 0 (delta 0), pack-reused 15830
Receiving objects: 100% (15830/15830), 20.48 MiB | 3.49 MiB/s, done.
Resolving deltas: 100% (9639/9639), done.
[00:24:46] openhabian@openHABianPi:~$ cd MySensors
[00:25:34] openhabian@openHABianPi:~/MySensors$ ./configure --my-transport=nrf24
[SECTION] Detecting target machine.
  [OK] machine detected: SoC=BCM2837, Type=rpi3, CPU=armv7l.
[SECTION] Detecting SPI driver.
  [OK] SPI driver detected:BCM.
[SECTION] Detecting init system.
  [OK] init system detected: systemd.
[SECTION] Saving configuration.
[SECTION] Cleaning previous builds.
[OK] Finished.
[00:26:09] openhabian@openHABianPi:~/MySensors$ ./configure --my-gateway=ethernet --my-port=5003
[SECTION] Detecting target machine.
  [OK] machine detected: SoC=BCM2837, Type=rpi3, CPU=armv7l.
[SECTION] Detecting SPI driver.
  [OK] SPI driver detected:BCM.
[SECTION] Detecting init system.
  [OK] init system detected: systemd.
[SECTION] Saving configuration.
[SECTION] Cleaning previous builds.
[OK] Finished.
[00:27:08] openhabian@openHABianPi:~/MySensors$ ./configure --my-gateway=ethernet --my-controller-ip-address=192.168.1.2
[SECTION] Detecting target machine.
  [OK] machine detected: SoC=BCM2837, Type=rpi3, CPU=armv7l.
[SECTION] Detecting SPI driver.
  [OK] SPI driver detected:BCM.
[SECTION] Detecting init system.
  [OK] init system detected: systemd.
[SECTION] Saving configuration.
[SECTION] Cleaning previous builds.
[OK] Finished.
[00:27:40] openhabian@openHABianPi:~/MySensors$ make
gcc -MT build/drivers/Linux/log.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/log.c -o build/drivers/Linux/log.o
g++ -MT build/drivers/Linux/IPAddress.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/IPAddress.cpp -o build/drivers/Linux/IPAddress.o
g++ -MT build/drivers/Linux/noniso.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/noniso.cpp -o build/drivers/Linux/noniso.o
g++ -MT build/drivers/Linux/GPIO.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/GPIO.cpp -o build/drivers/Linux/GPIO.o
g++ -MT build/drivers/Linux/SPIDEV.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/SPIDEV.cpp -o build/drivers/Linux/SPIDEV.o
g++ -MT build/drivers/Linux/Print.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/Print.cpp -o build/drivers/Linux/Print.o
g++ -MT build/drivers/Linux/EthernetClient.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/EthernetClient.cpp -o build/drivers/Linux/EthernetClient.o
g++ -MT build/drivers/Linux/compatibility.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/compatibility.cpp -o build/drivers/Linux/compatibility.o
g++ -MT build/drivers/Linux/SerialPort.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/SerialPort.cpp -o build/drivers/Linux/SerialPort.o
g++ -MT build/drivers/Linux/Stream.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/Stream.cpp -o build/drivers/Linux/Stream.o
g++ -MT build/drivers/Linux/interrupt.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/interrupt.cpp -o build/drivers/Linux/interrupt.o
g++ -MT build/drivers/Linux/SerialSimulator.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/SerialSimulator.cpp -o build/drivers/Linux/SerialSimulator.o
g++ -MT build/drivers/Linux/SoftEeprom.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/SoftEeprom.cpp -o build/drivers/Linux/SoftEeprom.o
g++ -MT build/drivers/Linux/EthernetServer.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/Linux/EthernetServer.cpp -o build/drivers/Linux/EthernetServer.o
g++ -MT build/examples_linux/mysgw.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c examples_linux/mysgw.cpp -o build/examples_linux/mysgw.o
gcc -MT build/drivers/BCM/bcm2835.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/BCM/bcm2835.c -o build/drivers/BCM/bcm2835.o
g++ -MT build/drivers/BCM/BCM.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/BCM/BCM.cpp -o build/drivers/BCM/BCM.o
g++ -MT build/drivers/BCM/SPIBCM.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/BCM/SPIBCM.cpp -o build/drivers/BCM/SPIBCM.o
g++ -MT build/drivers/BCM/Wire.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/BCM/Wire.cpp -o build/drivers/BCM/Wire.o
g++ -MT build/drivers/BCM/RPi.o -MMD -MP -march=armv8-a+crc -mtune=cortex-a53 -mfpu=neon-fp-armv8 -mfloat-abi=hard -DMY_RADIO_NRF24 -DMY_GATEWAY_LINUX -DMY_DEBUG -DLINUX_SPI_BCM -DLINUX_ARCH_RASPBERRYPI -DMY_CONTROLLER_IP_ADDRESS=192,168,1,2  -Ofast -g -Wall -Wextra  -I. -I./core -I./drivers/Linux -I./drivers/BCM -c drivers/BCM/RPi.cpp -o build/drivers/BCM/RPi.o
g++ -pthread  -o bin/mysgw build/drivers/Linux/log.o build/drivers/Linux/IPAddress.o build/drivers/Linux/noniso.o build/drivers/Linux/GPIO.o build/drivers/Linux/SPIDEV.o build/drivers/Linux/Print.o build/drivers/Linux/EthernetClient.o build/drivers/Linux/compatibility.o build/drivers/Linux/SerialPort.o build/drivers/Linux/Stream.o build/drivers/Linux/interrupt.o build/drivers/Linux/SerialSimulator.o build/drivers/Linux/SoftEeprom.o build/drivers/Linux/EthernetServer.o build/examples_linux/mysgw.o build/drivers/BCM/bcm2835.o build/drivers/BCM/BCM.o build/drivers/BCM/SPIBCM.o build/drivers/BCM/Wire.o build/drivers/BCM/RPi.o 
[00:30:01] openhabian@openHABianPi:~/MySensors$ sudo ./bin/mysgw -d
mysgw: Starting gateway...
mysgw: Protocol version - 2.2.0
mysgw: MCO:BGN:INIT GW,CP=RNNGL---,VER=2.2.0
mysgw: TSF:LRT:OK
mysgw: TSM:INIT
mysgw: TSF:WUR:MS=0
mysgw: TSM:INIT:TSP OK
mysgw: TSM:INIT:GW MODE
mysgw: TSM:READY:ID=0,PAR=0,DIS=0
mysgw: MCO:REG:NOT NEEDED
mysgw: connect: Connection refused
mysgw: failed to connect
mysgw: GWT:TIN:ETH OK
mysgw: connect: Connection refused
mysgw: failed to connect
mysgw: GWT:TPS:ETH OK
mysgw: connect: Connection refused
mysgw: failed to connect
mysgw: GWT:TPS:ETH OK
mysgw: connect: Connection refused
mysgw: failed to connect
mysgw: GWT:TPS:ETH OK
mysgw: connect: Connection refused
mysgw: failed to connect

Hello! Please help to solve the problem.
Here's what is written at startup:

mysgw: Starting gateway...
mysgw: Protocol version - 2.2.0
mysgw: MCO:BGN:INIT GW,CP=RNNGL---,VER=2.2.0
mysgw: TSF:LRT:OK
mysgw: TSM:INIT
mysgw: TSF:WUR:MS=0
mysgw: TSM:INIT:TSP OK
mysgw: TSM:INIT:GW MODE
mysgw: TSM:READY:ID=0,PAR=0,DIS=0
mysgw: MCO:REG:NOT NEEDED
mysgw: connect: Connection refused
mysgw: failed to connect
mysgw: GWT:TIN:ETH OK
mysgw: connect: Connection refused
mysgw: failed to connect
mysgw: GWT:TPS:ETH OK
mysgw: connect: Connection refused
mysgw: failed to connect
mysgw: GWT:TPS:ETH OK
mysgw: connect: Connection refused
mysgw: failed to connect

Here's what I wrote in the console:

git clone https://github.com/mysensors/MySensors.git --branch master
cd MySensors
./configure --my-transport=nrf24
./configure --my-gateway=ethernet --my-port=5003
./configure --my-gateway=ethernet --my-controller-ip-address=192.168.1.2
make
sudo ./bin/mysgw -d

Finally, I can join this discussion!
Today I drew a scheme of my first device! This is a system to protect against water leakage. I also posted it in the "hardware" section. Link.

@alexsh1
Wrote in the chat.

@alexsh1 Plantower PMS7003 this sensor need not be calibrated? Is it accurate enough?
Unfortunately I have some problems with understanding English.
My GP2Y1014AU0F sensor now shows a value of about 150 units. As I understand, this is absolutely not the right value for the apartment.

@nca78 said in Which dust sensor do you use and why?:

If you are ready to invest US$30 then you can have a look at the Honeywell HPMA115S0-XXX, it will give you only PM2.5 but it's fully calibrated and you have a +/-15% accuracy warranted by Honeywell for 20 000 hours.

@gohan tell me please, do I need a special sketch to use it? Or they all work on the same principle?

@nca78 Thank you very much for your response!
And how do you like this sensor: HPMA115S0-XXX ?
I read that it is more durable.

@gohan Thank you very much!
I just yesterday thought that at least I still need to measure CO2.
Which sensor or complex of sensors did you choose for yourself? And why?

@gohan Frankly, I'm not particularly aware of this topic. I want to measure the usual dust in the air. I apologize if my words seem stupid to you. I want to understand which concentration of dust particles should be measured for the living space, what is the ultimate norm of these particles in the air and what sensor is suitable for this.

I bought and now use GP2Y1014AU0F. But, as I read on the forum, it is already outdated.

Hello!
I came across an abundance of dust sensors. I want to ask what kind of sensors you use and why?
And also, I'm curious, what is the norm of the amount of dust in the air of a living room?

@alowhum Hello!
In what range of values is the norm for living space?
My sensor shows 17 units.

@mfalkvidd I assumed that this change is made in the code of the sensor itself. For example, during its presentation.

@mfalkvidd Tell me please, can I somehow unite them in one device? Now this sensor is displayed as two separate devices. But this is one physical device.

@mfalkvidd Thank you! Everything worked!

Hello! I'm trying to connect a temperature and humidity sensor to Openhab 2.2.
The sensor is detected automatically as "Humidity Sensor".
But it displays the following:

Please help me understand and solve the problem. What am I doing wrong?

Sensor code:

#define MY_DEBUG

// Enable and select radio type attached 
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69
//#define MY_RS485

#include <SPI.h>
#include <MySensors.h>  
#include <DHT.h>

// Set this to the pin you connected the DHT's data pin to
#define DHT_DATA_PIN 3

// Set this offset if the sensor has a permanent small offset to the real temperatures
#define SENSOR_TEMP_OFFSET 0

// Sleep time between sensor updates (in milliseconds)
// Must be >1000ms for DHT22 and >2000ms for DHT11
static const uint64_t UPDATE_INTERVAL = 10000;

// Force sending an update of the temperature after n sensor reads, so a controller showing the
// timestamp of the last update doesn't show something like 3 hours in the unlikely case, that
// the value didn't change since;
// i.e. the sensor would force sending an update every UPDATE_INTERVAL*FORCE_UPDATE_N_READS [ms]
static const uint8_t FORCE_UPDATE_N_READS = 10;

#define CHILD_ID_HUM 0
#define CHILD_ID_TEMP 1

float lastTemp;
float lastHum;
uint8_t nNoUpdatesTemp;
uint8_t nNoUpdatesHum;
bool metric = true;

MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
DHT dht;


void presentation()  
{ 
  // Send the sketch version information to the gateway
  sendSketchInfo("TemperatureAndHumidity", "1.1");

  // Register all sensors to gw (they will be created as child devices)
  present(CHILD_ID_HUM, S_HUM);
  present(CHILD_ID_TEMP, S_TEMP);

  metric = getControllerConfig().isMetric;
}


void setup()
{
  dht.setup(DHT_DATA_PIN); // set data pin of DHT sensor
  if (UPDATE_INTERVAL <= dht.getMinimumSamplingPeriod()) {
    Serial.println("Warning: UPDATE_INTERVAL is smaller than supported by the sensor!");
  }
  // Sleep for the time of the minimum sampling period to give the sensor time to power up
  // (otherwise, timeout errors might occure for the first reading)
  sleep(dht.getMinimumSamplingPeriod());
}


void loop()      
{  
  // Force reading sensor, so it works also after sleep()
  dht.readSensor(true);

  // Get temperature from DHT library
  float temperature = dht.getTemperature();
  if (isnan(temperature)) {
    Serial.println("Failed reading temperature from DHT!");
  } else if (temperature != lastTemp || nNoUpdatesTemp == FORCE_UPDATE_N_READS) {
    // Only send temperature if it changed since the last measurement or if we didn't send an update for n times
    lastTemp = temperature;
    if (!metric) {
      temperature = dht.toFahrenheit(temperature);
    }
    // Reset no updates counter
    nNoUpdatesTemp = 0;
    temperature += SENSOR_TEMP_OFFSET;
    send(msgTemp.set(temperature, 1));

    #ifdef MY_DEBUG
    Serial.print("T: ");
    Serial.println(temperature);
    #endif
  } else {
    // Increase no update counter if the temperature stayed the same
    nNoUpdatesTemp++;
  }

  // Get humidity from DHT library
  float humidity = dht.getHumidity();
  if (isnan(humidity)) {
    Serial.println("Failed reading humidity from DHT");
  } else if (humidity != lastHum || nNoUpdatesHum == FORCE_UPDATE_N_READS) {
    // Only send humidity if it changed since the last measurement or if we didn't send an update for n times
    lastHum = humidity;
    // Reset no updates counter
    nNoUpdatesHum = 0;
    send(msgHum.set(humidity, 1));

    #ifdef MY_DEBUG
    Serial.print("H: ");
    Serial.println(humidity);
    #endif
  } else {
    // Increase no update counter if the humidity stayed the same
    nNoUpdatesHum++;
  }

  // Sleep for a while to save energy
  sleep(UPDATE_INTERVAL); 
}

Debug information from the sensor:

16 MCO:BGN:INIT NODE,CP=RNNNA---,VER=2.2.0
25 TSM:INIT
26 TSF:WUR:MS=0
33 TSM:INIT:TSP OK
35 TSF:SID:OK,ID=24
37 TSM:FPAR
73 TSF:MSG:SEND,24-24-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
627 TSF:MSG:READ,0-0-24,s=255,c=3,t=8,pt=1,l=1,sg=0:0
632 TSF:MSG:FPAR OK,ID=0,D=1
2081 TSM:FPAR:OK
2082 TSM:ID
2083 TSM:ID:OK
2085 TSM:UPL
2088 TSF:MSG:SEND,24-24-0-0,s=255,c=3,t=24,pt=1,l=1,sg=0,ft=0,st=OK:1
2191 TSF:MSG:READ,0-0-24,s=255,c=3,t=25,pt=1,l=1,sg=0:1
2196 TSF:MSG:PONG RECV,HP=1
2198 TSM:UPL:OK
2200 TSM:READY:ID=24,PAR=0,DIS=1
2204 TSF:MSG:SEND,24-24-0-0,s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=OK:0100
2332 TSF:MSG:READ,0-0-24,s=255,c=3,t=15,pt=6,l=2,sg=0:0100
2340 TSF:MSG:SEND,24-24-0-0,s=255,c=0,t=17,pt=0,l=5,sg=0,ft=0,st=OK:2.2.0
2349 TSF:MSG:SEND,24-24-0-0,s=255,c=3,t=6,pt=1,l=1,sg=0,ft=0,st=OK:0
2586 TSF:MSG:READ,0-0-24,s=255,c=3,t=6,pt=0,l=1,sg=0:M
2593 TSF:MSG:SEND,24-24-0-0,s=255,c=3,t=11,pt=0,l=22,sg=0,ft=0,st=OK:TemperatureAndHumidity
2604 TSF:MSG:SEND,24-24-0-0,s=255,c=3,t=12,pt=0,l=3,sg=0,ft=0,st=OK:1.1
2612 TSF:MSG:SEND,24-24-0-0,s=0,c=0,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
2653 !TSF:MSG:SEND,24-24-0-0,s=1,c=0,t=6,pt=0,l=0,sg=0,ft=0,st=NACK:
2660 MCO:REG:REQ
2663 TSF:MSG:SEND,24-24-0-0,s=255,c=3,t=26,pt=1,l=1,sg=0,ft=1,st=OK:2
2938 TSF:MSG:READ,0-0-24,s=255,c=3,t=27,pt=1,l=1,sg=0:1
2944 MCO:PIM:NODE REG=1
2946 MCO:BGN:STP
2952 MCO:SLP:MS=2000,SMS=0,I1=255,M1=255,I2=255,M2=255
2957 TSF:TDI:TSL
2959 MCO:SLP:WUP=-1
2961 TSF:TRI:TSB
2963 MCO:BGN:INIT OK,TSP=1
2972 TSF:MSG:SEND,24-24-0-0,s=1,c=1,t=0,pt=7,l=5,sg=0,ft=0,st=OK:26.8
T: 26.80
2980 TSF:MSG:SEND,24-24-0-0,s=0,c=1,t=1,pt=7,l=5,sg=0,ft=0,st=OK:14.2
H: 14.20
2988 MCO:SLP:MS=10000,SMS=0,I1=255,M1=255,I2=255,M2=255
2993 TSF:TDI:TSL
2995 MCO:SLP:WUP=-1
2997 TSF:TRI:TSB
3005 TSF:MSG:SEND,24-24-0-0,s=1,c=1,t=0,pt=7,l=5,sg=0,ft=0,st=OK:26.5
T: 26.50
3014 TSF:MSG:SEND,24-24-0-0,s=0,c=1,t=1,pt=7,l=5,sg=0,ft=0,st=OK:14.3
H: 14.30
3021 MCO:SLP:MS=10000,SMS=0,I1=255,M1=255,I2=255,M2=255
3026 TSF:TDI:TSL

My node is built on Arduino Nano + NRF24L01+
My gateway node is built on NodeMcu + NRF24L01+
Controller Openhab 2.2 (Openhabian + Raspberry Pi 3)
MySensors library 2.2

@gohan Thanks for clarifying!

@gohan @mfalkvidd Tell me please, can I connect the converter like this? If not, please explain why.

Let me remind you, in the example was like this:

@mfalkvidd Thank you! I'll try tomorrow.

@mfalkvidd So I do not like the converter for 4 channels?
Here this is indicated by the link you gave me above

It will take 5? More precisely 8-channel version?

@mfalkvidd Thank you! I hope I can figure it out. To regret, my knowledge of English is not very great. As I understand it, the connection scheme will be the most similar to this:

I'm right?

@gohan I'm afraid that they suffered greatly during my experiments. I'll try with the new ones. Can you tell me how to connect the converter?

@mfalkvidd thank you very much for your help!

@gohan thank you very much for your help!

@gohan what regulator can you advise? Can you show an example?

@mfalkvidd I'm not properly connected? In the photo above. He's turned over there.

@scalz, many thanks for the reply and the desire to help!

I understand what you are talking about, but for now I can figure out how to solve it.
Perhaps you have ideas?

Replace Arduino board with Pro Mini 3.3V?

Hello!
Please help me understand the problem.

My relay node is built on Arduino UNO + RFM69HW 868 mhz
My gateway node is built on NodeMcu + RFM69HW 868 mhz
Controller Openhab 2.2 (Openhabian + Raspberry Pi 3)
MySensors library 2.2

Here's what the port monitor shows:

16 MCO:BGN:INIT REPEATER,CP=RRNRA---,VER=2.2.0
26 MCO:BGN:BFR
27 TSM:INIT
28 TSF:WUR:MS=0
80 !TSM:INIT:TSP FAIL
81 TSM:FAIL:CNT=1
83 TSM:FAIL:DIS
84 TSF:TDI:TSL

The code of my relay node:

/**
 * The MySensors Arduino library handles the wireless radio link and protocol
 * between your home built sensors/actuators and HA controller of choice.
 * The sensors forms a self healing radio network with optional repeaters. Each
 * repeater and gateway builds a routing tables in EEPROM which keeps track of the
 * network topology allowing messages to be routed to nodes.
 *
 * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
 * Copyright (C) 2013-2015 Sensnology AB
 * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
 *
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 *******************************
 *
 * REVISION HISTORY
 * Version 1.0 - Henrik Ekblad
 *
 * DESCRIPTION
 * Example sketch showing how to control physical relays.
 * This example will remember relay state after power failure.
 * http://www.mysensors.org/build/relay
 */

// Enable debug prints to serial monitor
#define MY_DEBUG

// Enable and select radio type attached
//#define MY_RADIO_NRF24
//#define MY_RADIO_NRF5_ESB
#define MY_RADIO_RFM69
//#define MY_RADIO_RFM95

// Enable repeater functionality for this node
#define MY_REPEATER_FEATURE

#include <MySensors.h>

#define RELAY_PIN 4  // Arduino Digital I/O pin number for first relay (second on pin+1 etc)
#define NUMBER_OF_RELAYS 1 // Total number of attached relays
#define RELAY_ON 1  // GPIO value to write to turn on attached relay
#define RELAY_OFF 0 // GPIO value to write to turn off attached relay


void before()
{
	for (int sensor=1, pin=RELAY_PIN; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
		// Then set relay pins in output mode
		pinMode(pin, OUTPUT);
		// Set relay to last known state (using eeprom storage)
		digitalWrite(pin, loadState(sensor)?RELAY_ON:RELAY_OFF);
	}
}

void setup()
{

}

void presentation()
{
	// Send the sketch version information to the gateway and Controller
	sendSketchInfo("Relay", "1.0");

	for (int sensor=1, pin=RELAY_PIN; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
		// Register all sensors to gw (they will be created as child devices)
		present(sensor, S_BINARY);
	}
}


void loop()
{

}

void receive(const MyMessage &message)
{
	// We only expect one type of message from controller. But we better check anyway.
	if (message.type==V_STATUS) {
		// Change relay state
		digitalWrite(message.sensor-1+RELAY_PIN, message.getBool()?RELAY_ON:RELAY_OFF);
		// Store state in eeprom
		saveState(message.sensor, message.getBool());
		// Write some debug info
		Serial.print("Incoming change for sensor:");
		Serial.print(message.sensor);
		Serial.print(", New status: ");
		Serial.println(message.getBool());
	}
}

Photo of my relay node:

Please tell me what I'm doing wrong and how to fix this problem?

Hello.
I have an established Openhabian (2.2). Please tell me, how can I connect the Mysensors library via SSH?
I would be grateful for the detailed step-by-step instruction for the beginner.

@mfalkvidd The fact of the matter is that I could not figure it out. Here are the problems that I now faced:

1. In OpenHAB2, on the Mac OS, debugging information is not displayed when starting start_debug.sh
2. I still could not understand why in OpenHAB2, there is no MQTT gateway in the list:
   

@mfalkvidd It is very strange that in the presence of such a large community, there are no detailed step-by-step instructions, everything is scattered in different places.
Thank you very much for your help!

@mfalkvidd It looks like the whole problem is that I'm trying to do this in the Mac OS. Very strange, but even the debugging mode does not display real-time information.

@mfalkvidd I can not understand where to find the file openhab.cfg

Hello! Tell me please, what should I do to OpenHAB 2 started working with the MQTT gateway? There is somewhere understandable step-by-step instructions for configuring the OpenHAB 2 + MySensors (MQTT gateway)?

@sundberg84 Please tell me, how you can connect a maximum output devices into an outlet controlled by the relay? As I understand it, it will not sustain even the kettle?
I apologize in advance for the stupid question, I'm not good at electronics.

Hello. Please write size of the device in the box.

@ferpando, @Magiske, You solved this problem? I realized what the problem, but unfortunately, I do not understand how to solve it. Can you explain exactly how to change node?

Hello!
Can somebody already did MQTT Gateway with wi-fi instead of ethernet? Is this possible? Please share your code and circuit.

@Xander, thank you for your answer! As it turned out, I have a problem in the gateway. I use a network module ENC28J60, and full of reason to it do not reach the packets, it is not visible on the network. I connect it directly to a computer. Maybe you and repel such a problem?