Posts made by siklosi

Hi,
I just stumbled on hackaday post about guy making voltage reference using AD584 and found on aliexpress boards using this chip. It's great for battery voltage calibration when making battery operated nodes.

https://www.aliexpress.com/item/AD584-4-Channel-2-5V-5V-7-5V-10V-High-Precision-Voltage-Reference-Module/32701559692.html

Ill make backup and try that. Thanks.

Hi,
I asked same question on domoticz forum without replay and maybe someone here knows the answer.
I already have quite a few MySensor nodes and serial gateway. My biggest problem is when I want to upgrade OTA some of the nodes. It can't be done from domoticz so I need to stop serial gateway and then start ser2net... I was thinking of building wifi gateway (that would be 15minutes project and I have all components) and I hope that would solve my problem. The thing that Im not sure is how to do and even if it's possible to transfer all nodes to new gateway without changing Idx's and all the scripts and events...

My biggest "problem" with domoticz and Mysensors setup is upgrading nodes. Right now procedure Im using is stopping gw in domoticz, running ser2net on rpi. On my desktop i strat Myscontroller and connect via tcp/ip to rpi/ser2net. After upgrading node i stop ser2net and start gw in domoticz. Is it possible to upgrade node with mqtt? That would remove need to stop gw in domoticz.

Mac OS X Sierra driver
Working also with Mac OS, but Sierra crashes and here is link for working driver

Are there any plans and is it possible at all to implement ota fw update through domoticz?

Just saw this board...

http://www.ebay.com/itm/NANO-Prototype-Shield-NANO-IO-Expansion-Board-with-XBee-24L01-Interface-/311668101335

Maybe this will work

Great Idea. Ill sure make one of these soon. But I think that I will add two start buttons (one for me and one for my girlfriend) and if one of the buttons is pressed as soon as washing machine is finished domoticz will send pushbullet notification to me or my girlfriend.

Hi,
I just saw article on HackaDay about guy reverse engineering cheap power meter.

http://hackaday.com/2016/07/11/put-a-reverse-engineered-power-meter-in-your-toolkit/

http://webx.dk/oz2cpu/energy-meter/energy-meter.htm

Here is the power meter on aliexpress

http://www.aliexpress.com/item/LCD-4IN1-display-Voltage-current-active-power-energy-meter-blue-backlight-panel-voltmeter-ammeter-kwh-0/32611189341.html

It looks interesting and adding MySensors to it would be great.

There is also AQY210EH it's only 130mA but it could be useful for some LED's. It's about 2usd for 10pcs on aliexpress and they say it's optocoupler but it's actually SSR.

http://www.aliexpress.com/item/10pcs-lot-AQY210EH-AQY210-SOP-optocouplers-original-authentic/32646947425.html

http://eu.mouser.com/ProductDetail/Panasonic-Industrial-Devices/AQY210EH/?qs=mTeSeKeuVA5j1EBp6Jh75A%3D%3D

Is there a way to send ota firmware to node using some cli (python or...) script? I'm using MySensors with domoticz on RPi and when flashing new firmware I usually disconnect gw from rpi plug it into notebook and send fw using MYSController. If I could just disable gw in domoticz and send fw using some script it would be great until (if) domoticz gets support for ota fw.

I modified poor man's scanner script so that you can see all 127 channels..

http://forum.mysensors.org/topic/2454/node-cant-see-gateway-less-than-10m-away/11

OK Ill start

DSO Quad - Digital Osciloscope
TS100 - Soldering Iron
Bus Pirate - open source "hacker" multi-tool
Open Bench Logic Sniffer - open source logic analyzer

@gyro is there a reason you used high/low intensity with resistor instead of PWM?

Im also having problems with domoticz and negative values. Im reporting value and want to see increase or decrease. And negative values are represented as long int value -1 (I think).

This is little project I made while ago but just now converted it to mysensors (used to be controlled via bluetooth)

#include <MySensor.h>
#include <SPI.h>
#include <Servo.h>

#define RED_PIN 3
#define GREEN_PIN 5
#define BLUE_PIN 6
#define SERVO_H 7
#define SERVO_V 8

#define NODE_ID 5
#define SERVO_RGB 0
#define SKETCH_NAME "SERVO RGB"
#define SKETCH_VERSION "1.0.0"
#define NODE_REPEAT false
#define FIRE_EFFECT 22

Servo myservo_h;
Servo myservo_v;
MySensor gw;

long RGB_values[3] = {0, 0, 0};
float dimmer;
//int r = 255;
//int g = r - 80;
//int b = 25;
//int servh = 0;
//int servv = 0;

//MyMessage fireMsg(FIRE_EFFECT, V_LIGHT);

void setup() {

  pinMode(RED_PIN, OUTPUT);
  pinMode(GREEN_PIN, OUTPUT);
  pinMode(BLUE_PIN, OUTPUT);
  pinMode(SERVO_H, OUTPUT);
  pinMode(SERVO_V, OUTPUT);
  gw.begin(incomingMessage, NODE_ID, NODE_REPEAT);
  gw.sendSketchInfo(SKETCH_NAME, SKETCH_VERSION);
  
  gw.present(SERVO_RGB, S_RGB_LIGHT, "Servo RGB", false);
  gw.present(SERVO_V, S_LIGHT, "Servo V", false);
  gw.present(SERVO_H, S_LIGHT, "Servo H", false);
  gw.request(SERVO_V, V_LIGHT);
  gw.request(SERVO_V, V_LIGHT);
  gw.request(SERVO_RGB, V_RGB);
}

void loop() {
  gw.process();

}


void incomingMessage(const MyMessage &message) {

  if (message.type == V_RGB) {

    String hexstring = message.getString();
    long number = (long) strtol( &hexstring[0], NULL, 16);
    RGB_values[0] = number >> 16;
    RGB_values[1] = number >> 8 & 0xFF;
    RGB_values[2] = number & 0xFF;
  }
  if (message.type == V_DIMMER) {

    if (message.sensor == SERVO_V) {
      myservo_v.attach(SERVO_V);
      myservo_v.write(map(message.getInt(), 0, 100, 72, 180));
      gw.wait(1000);
      myservo_v.detach();
    }
    if (message.sensor == SERVO_H) {
      myservo_h.attach(SERVO_H);
      myservo_h.write(map(message.getInt(), 0, 100, 0, 180));
      gw.wait(1000);
      myservo_h.detach();
    }
    if (message.sensor == SERVO_RGB) {
      dimmer = message.getInt();
      analogWrite(RED_PIN, int(RGB_values[0] * (dimmer / 100)));
      analogWrite(GREEN_PIN, int(RGB_values[1] * (dimmer / 100)));
      analogWrite(BLUE_PIN, int(RGB_values[2] * (dimmer / 100)));
    }
  }

  if (message.type == V_LIGHT) {
    if (message.sensor == SERVO_RGB) {
      if (message.getInt() == 0) {
        digitalWrite(RED_PIN, 0);
        digitalWrite(GREEN_PIN, 0);
        digitalWrite(BLUE_PIN, 0);
      }
      if (message.getInt() == 1) {
        analogWrite(RED_PIN, int(RGB_values[0] * (dimmer / 100)));
        analogWrite(GREEN_PIN, int(RGB_values[1] * (dimmer / 100)));
        analogWrite(BLUE_PIN, int(RGB_values[2] * (dimmer / 100)));
      }
    }
    if (message.sensor == SERVO_H) {
      if (message.getInt() == 0) {
        myservo_h.attach(SERVO_H);
        myservo_h.write(0);
        gw.wait(1000);
        myservo_h.detach();
      }
      if (message.getInt() == 1) {
        myservo_v.attach(SERVO_V);
        myservo_v.write(180);
        gw.wait(1000);
        myservo_v.detach();
      }
    }
    if (message.sensor == SERVO_H) {
      if (message.getInt() == 0) {
        myservo_h.attach(SERVO_H);
        myservo_h.write(0);
        gw.wait(1000);
        myservo_h.detach();
      }
      if (message.getInt() == 1) {
        myservo_v.attach(SERVO_V);
        myservo_v.write(180);
        gw.wait(1000);
        myservo_v.detach();
      }
    }
  }
}

@davy39
I just made RGB controller for domoticz. So if it's not to late...

#include <MySensor.h>
#include <SPI.h>

#define RED_PIN 3
#define GREEN_PIN 5
#define BLUE_PIN 6

#define NODE_ID 2
#define CHILD_ID 0
#define SKETCH_NAME "RGB_STRIP"
#define SKETCH_VERSION "1.0.0"
#define NODE_REPEAT false

MySensor gw;

long RGB_values[3] = {0, 0, 0};
float dimmer;

void setup() {


  pinMode(RED_PIN, OUTPUT);
  pinMode(GREEN_PIN, OUTPUT);
  pinMode(BLUE_PIN, OUTPUT);

  gw.begin(incomingMessage, NODE_ID, NODE_REPEAT);
  gw.sendSketchInfo(SKETCH_NAME, SKETCH_VERSION);
  gw.present(CHILD_ID, S_RGB_LIGHT, "RGB Strip", false);
  gw.request(CHILD_ID, V_RGB);
}

void loop() {
  gw.process();
}

void incomingMessage(const MyMessage &message) {

  if (message.type == V_RGB) {

    String hexstring = message.getString();
    long number = (long) strtol( &hexstring[0], NULL, 16);
    RGB_values[0] = number >> 16;
    RGB_values[1] = number >> 8 & 0xFF;
    RGB_values[2] = number & 0xFF;
  }
  if (message.type == V_DIMMER) {
    dimmer = message.getInt();
    analogWrite(RED_PIN, int(RGB_values[0] * (dimmer / 100)));
    analogWrite(GREEN_PIN, int(RGB_values[1] * (dimmer / 100)));
    analogWrite(BLUE_PIN, int(RGB_values[2] * (dimmer / 100)));
  }

  if (message.type == V_LIGHT) {
    if (message.getInt() == 0) {
      digitalWrite(RED_PIN, 0);
      digitalWrite(GREEN_PIN, 0);
      digitalWrite(BLUE_PIN, 0);

    }
    if (message.getInt() == 1) {
      analogWrite(RED_PIN, int(RGB_values[0] * (dimmer / 100)));
      analogWrite(GREEN_PIN, int(RGB_values[1] * (dimmer / 100)));
      analogWrite(BLUE_PIN, int(RGB_values[2] * (dimmer / 100)));
    }
  }
}

https://www.raspberrypi.org/blog/raspberry-pi-zero

For this price Pi can now bi used as node

It's just an idea in developement/testing that will be presented if it work's as intended and reliable... Sensor for parking spot in parking garage with red/green led that shows if parking spot is free and also sends how many parking spots are free... Maybe some lcd tv that will show you when you are entering garage where are free spots...

Hi,
Im thinking of using MySensors library for reading some switches. Every node will have just one switch with on/off state. Problem is that there will be 650 nodes. I know that limit is 254.

1. Should I use 3 gateways with 3 separate channels?
   Also some nodes will most likely be out of reach of gateway(s) so there will be need for using relays.
2. Should all nodes be set as repeater or just some? (nodes won't be on battery so there is no need for sleep)
3. Is repeater selection and path done by MySensors library or controller has to do something?

You could scan frequencies and see what channels are free of noise and than set MySensors libraray to that channel. There is arduino code poor man's scanner that scans wifi range

and here is my modified sketch that scans all 127 channels...

#include <SPI.h>

// Poor Man's Wireless 2.4GHz Scanner
//
// uses an nRF24L01p connected to an Arduino
// 
// Cables are:
//     SS       -> 10
//     MOSI     -> 11
//     MISO     -> 12
//     SCK      -> 13
// 
// and CE       ->  9
//
// created March 2011 by Rolf Henkel
//

#define CE  9

// Array to hold Channel data
#define CHANNELS  128
int channel[CHANNELS];

// greyscale mapping 
int  line;
char grey[] = " 123456789";

// nRF24L01P registers we need
#define _NRF24_CONFIG      0x00
#define _NRF24_EN_AA       0x01
#define _NRF24_RF_CH       0x05
#define _NRF24_RF_SETUP    0x06
#define _NRF24_RPD         0x09

// get the value of a nRF24L01p register
byte getRegister(byte r)
{
  byte c;
  
  PORTB &=~_BV(2);
  c = SPI.transfer(r&0x1F);
  c = SPI.transfer(0);  
  PORTB |= _BV(2);

  return(c);
}

// set the value of a nRF24L01p register
void setRegister(byte r, byte v)
{
  PORTB &=~_BV(2);
  SPI.transfer((r&0x1F)|0x20);
  SPI.transfer(v);
  PORTB |= _BV(2);
}
  
// power up the nRF24L01p chip
void powerUp(void)
{
  setRegister(_NRF24_CONFIG,getRegister(_NRF24_CONFIG)|0x02);
  delayMicroseconds(130);
}

// switch nRF24L01p off
void powerDown(void)
{
  setRegister(_NRF24_CONFIG,getRegister(_NRF24_CONFIG)&~0x02);
}

// enable RX 
void enable(void)
{
    PORTB |= _BV(1);
}

// disable RX
void disable(void)
{
    PORTB &=~_BV(1);
}

// setup RX-Mode of nRF24L01p
void setRX(void)
{
  setRegister(_NRF24_CONFIG,getRegister(_NRF24_CONFIG)|0x01);
  enable();
  // this is slightly shorter than
  // the recommended delay of 130 usec
  // - but it works for me and speeds things up a little...
  delayMicroseconds(130);
}

// scanning all channels in the 2.4GHz band
void scanChannels(void)
{
  disable();
  for( int j=0 ; j<200  ; j++)
  {
    for( int i=0 ; i<CHANNELS ; i++)
    {
      // select a new channel
      setRegister(_NRF24_RF_CH,(128*i)/CHANNELS);
      
      // switch on RX
      setRX();
      
      // wait enough for RX-things to settle
      delayMicroseconds(40);
      
      // this is actually the point where the RPD-flag
      // is set, when CE goes low
      disable();
      
      // read out RPD flag; set to 1 if 
      // received power > -64dBm
      if( getRegister(_NRF24_RPD)>0 )   channel[i]++;
    }
  }
}

// outputs channel data as a simple grey map
void outputChannels(void)
{
  int norm = 0;
  
  // find the maximal count in channel array
  for( int i=0 ; i<CHANNELS ; i++)
    if( channel[i]>norm ) norm = channel[i];
    
  // now output the data
  //Serial.print('|');
  for( int i=0 ; i<CHANNELS ; i++)
  {
    int pos;
    
    // calculate grey value position
    if( norm!=0 ) pos = (channel[i]*10)/norm;
    else          pos = 0;
    
    // boost low values
    if( pos==0 && channel[i]>0 ) pos++;
    
    // clamp large values
    if( pos>9 ) pos = 9;
   
    // print it out
    Serial.print(grey[pos]);
    channel[i] = 0;
  }
  
  // indicate overall power
   Serial.println("");
 // Serial.println(norm);
}

// give a visual reference between WLAN-channels and displayed data
void printChannels(void)
{
  // output approximate positions of WLAN-channels
 Serial.println("0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001111111111111111111111111111");
 Serial.println("0000000001111111111222222222233333333334444444444555555555566666666667777777777888888888899999999990000000000111111111122222222"); 
 Serial.println("1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567");
}

void setup()
{
  Serial.begin(57600);
  
  Serial.println("Starting Poor Man's Wireless 2.4GHz Scanner ...");
  Serial.println();

  // Channel Layout
  // 0         1         2         3         4         5         6
  // 0123456789012345678901234567890123456789012345678901234567890123
  //       1 2  3 4  5  6 7 8  9 10 11 12 13  14                     | 
  //
 // Serial.println("Channel Layout");
  printChannels();
  
  // Setup SPI
  SPI.begin();
  SPI.setDataMode(SPI_MODE0);
  SPI.setClockDivider(SPI_CLOCK_DIV2);
  SPI.setBitOrder(MSBFIRST);
  
  // Activate Chip Enable
  pinMode(CE,OUTPUT);
  disable();
  
  // now start receiver
  powerUp();
  
  // switch off Shockburst
  setRegister(_NRF24_EN_AA,0x0);
  
  // make sure RF-section is set properly 
  // - just write default value... 
  setRegister(_NRF24_RF_SETUP,0x0F); 
  
  // reset line counter
  line = 0;
}

void loop() 
{ 
  // do the scan
  scanChannels();
  
  // output the result
  outputChannels();
  
  // output WLAN-channel reference every 12th line
  if( line++>12 )
  {
    printChannels();
    line = 0;
  }
}

I have MySensors project that has PWM and fan 60mm 12V. Problem is with high frequency noise coming from the fan caused by PWM. I solved this by puting 2200uF electrolytic capacitor. Down side is that when you set pwm at about half in my case fan works at 100% but you can map value to 0-120 instead of 0-255 for pwm and it will work OK. I started with lower values of capacitor until noise disappeared and then tested where is 100% of speed vs PWM value.

Mysbootloader ota update works great. Also modules you showed have only rx and tx pins so there is no easy way to reboot arduino and start fw upgrade.

I succeeded compiling MYSBootloader with Oitzu's help. I have compiled MYSbootloader for 8 and 16Mhz for all 127 channels. Here is archive... so you can try it. I have not yet tested it but it should be working
https://www.dropbox.com/s/0gjxp9wl2uukj4y/Mysbootloader-8-16-1-127.zip?dl=1

I also had problems with compiling mysbootloader. I tried now with Dirk's command and 1.4.2 library and it's also displaying a lot of conflicting declarations. If someone find's some solution it would be great. I also tried compiling from linux few days ago without success

You were right. It works now. Thank you.

Hi,
How can I set setpoint from domoticz. I tried with gw.present(7, S_HEATER). I see in hardware that S_HEATER is present but there is no device reported. Also on that same node I have one dht22 and ds18s20 sensors and in domoticz humidity is reported on both sensors. Is there a way to send values so that domoticz separates them (I tried setting same child for temp and hum from dht22 and other id for ds18s20 but again I get combined temp/hum for both sensors)

Ubiquiti has some looong range wifi solutions...

ArduinoNano.dip

Will this help?

Edit: Sorry this is Arduino mini ... maybe you will need it for some sensors...

Hi,
I built while ago this little thingie
rgb servo spot
I used arduino with bluetooth. Now my nrf240l rf's came along with arduino mini's. And i built gw with one test borad to verify that everything is working with domoticz (and it is ). Now I would like to convert this servo rgb spot. It has rgb leds (actualy 3 separate led's but effect is same) and two servos for for two axes. What would be best way to controll it (mysensots and domoticz solution) also im thinking about buying some eeproms and i installing some ota bootloader. AT25640 are ok?