Relay and Light Node

[Marek Běluša]

Hi, i try to combine Relay and Light node sketch. It works ok but i need put interupt or delay for light sensor reading only 1 read per minute. If i put sleep time to loop then it block comunication for realy and node repeater :-(

I found some examples only for 1.5 v nodes .........

Thanks for help!

My 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 - idefix
• DESCRIPTION
• Arduino BH1750FVI Light sensor
• communicate using I2C Protocol
• this library enable 2 slave device addresses
• Main address 0x23
• secondary address 0x5C
• connect the sensor as follows :
• VCC >>> 5V
• Gnd >>> Gnd
• ADDR >>> NC or GND
• SCL >>> A5
• SDA >>> A4
• http://www.mysensors.org/build/light
  */

#define MY_NODE_ID 9

// Enable debug prints to serial monitor
#define MY_DEBUG

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

#define MY_RF24_PA_LEVEL RF24_PA_MAX

#include <SPI.h>
#include <MySensors.h>
#include <BH1750.h>
#include <Wire.h>

#define CHILD_ID_LIGHT 10
unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)

#define RELAY_1 3 // 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 0 // GPIO value to write to turn on attached relay
#define RELAY_OFF 1 // GPIO value to write to turn off attached relay

BH1750 lightSensor;

// transmitting LUX light level.
MyMessage msg(CHILD_ID_LIGHT, V_LIGHT_LEVEL);
// MyMessage msg(CHILD_ID_LIGHT, V_LEVEL);
uint16_t lastlux;

void before() {
for (int sensor=1, pin=RELAY_1; 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()
{
lightSensor.begin();
for (int sensor=1, pin=RELAY_1; 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 presentation() {
// Send the sketch version information to the gateway and Controller
sendSketchInfo("Relays and Light Lux Sensor node", "1.0");

// Register all sensors to gateway (they will be created as child devices)
present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);

for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++, pin++) {
// Register all sensors to gw (they will be created as child devices)
present(sensor, S_LIGHT);
}
}

void loop()
{
uint16_t lux = lightSensor.readLightLevel();// Get Lux value
Serial.println(lux);
if (lux != lastlux) {
send(msg.set(lux));
lastlux = lux;

}
}
void receive(const MyMessage &message) {
// We only expect one type of message from controller. But we better check anyway.
if (message.type==V_LIGHT) {
// Change relay state
digitalWrite(message.sensor-1+RELAY_1, 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());

}
}

[mrwomble]

Hi Marek,
What I've done in this situation is to introduce a time check instead of sleeping the node, since you need to keep it awake to listen for relay commands. I got my inspiration from Hek's RGB dimmer sketch.

My code was for a gas sensor:

unsigned long currentTime  = millis();
if (currentTime > lastTime + READ_DELAY_TIME) {
    lastTime = currentTime;
    readgassensor();
  }

READ_DELAY_TIME is set to 30000 so that it waits 30s between reads (in your case, increase that to get 1min intervals).

This is not a super-precise way of doing it, but it's simple enough for regular sensor reads and seems to work for me.

Hope that helps!

[Marek Běluša]

Hi!

Thanks for help, now it works perfect :-)

Posting updated 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 - idefix
• DESCRIPTION
• Arduino BH1750FVI Light sensor
• communicate using I2C Protocol
• this library enable 2 slave device addresses
• Main address 0x23
• secondary address 0x5C
• connect the sensor as follows :
• VCC >>> 5V
• Gnd >>> Gnd
• ADDR >>> NC or GND
• SCL >>> A5
• SDA >>> A4
• http://www.mysensors.org/build/light
  */

#define MY_NODE_ID 9

// Enable debug prints to serial monitor
#define MY_DEBUG

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

#define MY_RF24_PA_LEVEL RF24_PA_MAX

#include <SPI.h>
#include <MySensors.h>
#include <BH1750.h>
#include <Wire.h>

#define CHILD_ID_LIGHT 10

unsigned long lastTime = millis();
#define RELAY_1 3 // 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 0 // GPIO value to write to turn on attached relay
#define RELAY_OFF 1 // GPIO value to write to turn off attached relay

BH1750 lightSensor;

// transmitting LUX light level.
MyMessage msg(CHILD_ID_LIGHT, V_LIGHT_LEVEL);
// MyMessage msg(CHILD_ID_LIGHT, V_LEVEL);
uint16_t lastlux;

void before() {
for (int sensor=1, pin=RELAY_1; 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()

{
lightSensor.begin();
for (int sensor=1, pin=RELAY_1; 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 presentation() {
// Send the sketch version information to the gateway and Controller
sendSketchInfo("Relays and Light Lux Sensor node", "1.0");

// Register all sensors to gateway (they will be created as child devices)
present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);

for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS;sensor++, pin++) {
// Register all sensors to gw (they will be created as child devices)
present(sensor, S_LIGHT);
}
}

void loop()
{
unsigned long currentTime = millis();
if (currentTime > lastTime + 60000) {
lastTime = currentTime;

uint16_t lux = lightSensor.readLightLevel();
Serial.println(lux);
if (lux != lastlux)
send(msg.set(lux));
lastlux = lux; }

}

void receive(const MyMessage &message) {
// We only expect one type of message from controller. But we better check anyway.
if (message.type==V_LIGHT) {
// Change relay state
digitalWrite(message.sensor-1+RELAY_1, 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());

}
}