Multi sensor node - Rc433MHz, 2xRelay, DHT11

[marekd]

Hi!

This is my last fast project.
With this I can control 3x Rc433 MHz wall plugs, 2 relays and to measure room temperature and humidity with a single node.
This is very simple to make for almost everyone, with some small, like me, soldering skills!
This is how it looks like:


The box was drilled to use motion sensor as well - but i change my mind ;)

Below you can find 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 - Henrik Ekblad
 * Version 2.0 - Marek Dajnowicz (Rc433, DHT11 upgrade)
 *
 * DESCRIPTION
 * Example sketch showing how to control physical relays.
 * How to control Rc433 MHz wall plugs and usage of DHT11
 
 */

// Enable debug prints to serial monitor
#define MY_DEBUG

//#define MY_NODE_ID 16
// Enable and select radio type attached
#define MY_RADIO_NRF24


#define CHILD_ID_HUM 1 // DHT11
#define CHILD_ID_TEMP 2 // DHT11
#define HUMIDITY_SENSOR_DIGITAL_PIN 3 // where DHT is coneccted
#define RELAY_1 4
#define RELAY_2 5
#define CHILD_ID_L1 6 // for Rc433 PLUG 1
#define CHILD_ID_L2 7 // for Rc433 PLUG 2
#define CHILD_ID_L3 8 // for Rc433 PLUG 3

#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
#define NUMBER_OF_RELAYS 2 // Total number of attached relays


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

DHT dht;
float Temp;
float Hum;
boolean metric = true;

MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
MyMessage msgL1(CHILD_ID_L1, V_STATUS);
MyMessage msgL2(CHILD_ID_L2, V_STATUS);
MyMessage msgL3(CHILD_ID_L3, V_STATUS);
MyMessage msgR1(RELAY_1, V_STATUS);
MyMessage msgR2(RELAY_2, V_STATUS);

// Create a transmitter on address xxxxxxxx, using digital pin 6 to transmit, 
// with a period duration of 260ms (default), repeating the transmitted
// code 2^3=8 times.
NewRemoteTransmitter transmitter(60548078, 6, 260, 3); // address got by ShowReceivedCode.ino from Arduino IDE  

boolean receivedConfig = false;
const unsigned long tUpdate = 60000; // update interval 60sec
unsigned long t0;

void setup() {

  dht.setup(HUMIDITY_SENSOR_DIGITAL_PIN);
  t0 = millis();
  ServerUpdate();
}

void ServerUpdate() {
  dht.readSensor(true);
  Hum = dht.getHumidity(); 
  delay(20);
  Temp = dht.getTemperature(); 
  delay(20);
  send(msgTemp.set(Temp, 1));
  delay(20);
  send(msgHum.set(Hum, 1)); 
  delay(20);
  t0 = millis();
}

void presentation() {
  // Present locally attached sensors
  sendSketchInfo("Multi Node", "2.0.0");
  present(CHILD_ID_HUM, S_HUM, "HUM");
  present(CHILD_ID_TEMP, S_TEMP, "TEMP");
  present(CHILD_ID_L1, S_LIGHT, "PLUG_1");
  present(CHILD_ID_L2, S_LIGHT, "PLUG_2");
  present(CHILD_ID_L3, S_LIGHT, "PLUG_3");
  present(RELAY_1, S_BINARY, "Relay 1");
  present(RELAY_2, S_BINARY, "Relay 2");

}

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);
    digitalWrite(pin, RELAY_OFF);
  }

}

void loop()
  {
  if ((millis() - t0) > tUpdate) ServerUpdate();
  }


void receive(const MyMessage &message) {

  if (message.type == V_STATUS) {
    int incomingLightState =  message.getBool();
    int incomingOutlet = message.sensor;

    Serial.print("Outlet #: ");
    Serial.println(message.sensor);
    Serial.print("Command: ");
    Serial.println(message.getBool());

// Rc433 Plugs
    if ((incomingOutlet == 6) && (incomingLightState == 1))
    {
      transmitter.sendUnit(15, true);
    }
    if ((incomingOutlet == 6) && (incomingLightState == 0))
    {
      transmitter.sendUnit(15, false);
    }

    if ((incomingOutlet == 7) && (incomingLightState == 1))
    {
      transmitter.sendUnit(14, true);
    }
    if ((incomingOutlet == 7) && (incomingLightState == 0 ))
    {
      transmitter.sendUnit(14, false);
    }

    if ((incomingOutlet == 8) && (incomingLightState == 1))
    {
      transmitter.sendUnit(13, true);
    }
    if ((incomingOutlet == 8) && (incomingLightState == 0))
    {
      transmitter.sendUnit(13, false);
    }
// RELAYS
if (incomingOutlet == 4) {
      if (incomingLightState == 1) {
        // Turn on  Relay 1
        digitalWrite(incomingOutlet, RELAY_ON);}
        
      if (incomingLightState == 0)  {
        // Turn off Relay 1
        Serial.println("Turn off Relay 1");
        digitalWrite(incomingOutlet, RELAY_OFF);}}
        
    if (incomingOutlet == 5) {
      if (incomingLightState == 1) {
        // Turn on  Relay 2
        digitalWrite(incomingOutlet, RELAY_ON);}
        
      if (incomingLightState == 0)  {
        // Turn off Relay 2
        Serial.println("Turn off Relay 2");
        digitalWrite(incomingOutlet, RELAY_OFF);}}
       
   

  }
}