Sending Message from SerialGateway Node to RelayActuator



  • This is the sample code of SerialGateway I am using

    /**
     * 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
     * The ArduinoGateway prints data received from sensors on the serial link. 
     * The gateway accepts input on seral which will be sent out on radio network.
     *
     * The GW code is designed for Arduino Nano 328p / 16MHz
     *
     * Wire connections (OPTIONAL):
     * - Inclusion button should be connected between digital pin 3 and GND  
     * - RX/TX/ERR leds need to be connected between +5V (anode) and digital pin 6/5/4 with resistor 270-330R in a series
     *
     * LEDs (OPTIONAL):
     * - To use the feature, uncomment WITH_LEDS_BLINKING in MyConfig.h
     * - RX (green) - blink fast on radio message recieved. In inclusion mode will blink fast only on presentation recieved
     * - TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly
     * - ERR (red) - fast blink on error during transmission error or recieve crc error 
     * 
     */
    
    #define NO_PORTB_PINCHANGES  
    
    #include <MySigningNone.h>
    #include <MyTransportRFM69.h>
    #include <MyTransportNRF24.h>
    #include <MyHwATMega328.h>
    #include <MySigningAtsha204Soft.h>
    #include <MySigningAtsha204.h>
    
    #include <SPI.h>  
    #include <MyParserSerial.h>  
    #include <MySensor.h>  
    #include <stdarg.h>
    #include <PinChangeInt.h>
    #include "GatewayUtil.h"
    
    #define INCLUSION_MODE_TIME 1 // Number of minutes inclusion mode is enabled
    #define INCLUSION_MODE_PIN  3 // Digital pin used for inclusion mode button
    #define RADIO_ERROR_LED_PIN 4  // Error led pin
    #define RADIO_RX_LED_PIN    6  // Receive led pin
    #define RADIO_TX_LED_PIN    5  // the PCB, on board LED
    
    // NRFRF24L01 radio driver (set low transmit power by default) 
    MyTransportNRF24 transport(RF24_CE_PIN, RF24_CS_PIN, RF24_PA_LEVEL_GW);
    //MyTransportRFM69 transport;
    
    // Message signing driver (signer needed if MY_SIGNING_FEATURE is turned on in MyConfig.h)
    //MySigningNone signer;
    //MySigningAtsha204Soft signer;
    //MySigningAtsha204 signer;
    
    // Hardware profile 
    MyHwATMega328 hw;
    
    // Construct MySensors library (signer needed if MY_SIGNING_FEATURE is turned on in MyConfig.h)
    // To use LEDs blinking, uncomment WITH_LEDS_BLINKING in MyConfig.h
    #ifdef WITH_LEDS_BLINKING
    MySensor gw(transport, hw /*, signer*/, RADIO_RX_LED_PIN, RADIO_TX_LED_PIN, RADIO_ERROR_LED_PIN);
    #else
    MySensor gw(transport, hw /*, signer*/);
    #endif
    
    char inputString[MAX_RECEIVE_LENGTH] = "";    // A string to hold incoming commands from serial/ethernet interface
    int inputPos = 0;
    boolean commandComplete = false;  // whether the string is complete
    
    void parseAndSend(char *commandBuffer);
    
    void output(const char *fmt, ... ) {
       va_list args;
       va_start (args, fmt );
       vsnprintf_P(serialBuffer, MAX_SEND_LENGTH, fmt, args);
       va_end (args);
       Serial.print(serialBuffer);
    }
    
      
    void setup()  
    { 
      gw.begin(incomingMessage, 0, true, 0);
    
      setupGateway(INCLUSION_MODE_PIN, INCLUSION_MODE_TIME, output);
    
      // Add interrupt for inclusion button to pin
      PCintPort::attachInterrupt(pinInclusion, startInclusionInterrupt, RISING);
    
    
      // Send startup log message on serial
      serial(PSTR("0;0;%d;0;%d;Gateway startup complete.\n"),  C_INTERNAL, I_GATEWAY_READY);
    }
    
    void loop()  
    { 
      gw.process();
    
      checkButtonTriggeredInclusion();
      checkInclusionFinished();
      
      if (commandComplete) {
        // A command wass issued from serial interface
        // We will now try to send it to the actuator
        parseAndSend(gw, inputString);
        commandComplete = false;  
        inputPos = 0;
      }
    }
    
    
    /*
      SerialEvent occurs whenever a new data comes in the
     hardware serial RX.  This routine is run between each
     time loop() runs, so using delay inside loop can delay
     response.  Multiple bytes of data may be available.
     */
    void serialEvent() {
      while (Serial.available()) {
        // get the new byte:
        char inChar = (char)Serial.read(); 
        // if the incoming character is a newline, set a flag
        // so the main loop can do something about it:
        if (inputPos<MAX_RECEIVE_LENGTH-1 && !commandComplete) { 
          if (inChar == '\n') {
            inputString[inputPos] = 0;
            commandComplete = true;
          } else {
            // add it to the inputString:
            inputString[inputPos] = inChar;
            inputPos++;
          }
        } else {
           // Incoming message too long. Throw away 
            inputPos = 0;
        }
      }
    }
    
    
    
    

    and this is the RelayActuator sample 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 - 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
     */ 
    
    #include <MySigningNone.h>
    #include <MyTransportNRF24.h>
    #include <MyTransportRFM69.h>
    #include <MyHwATMega328.h>
    #include <MySensor.h>
    #include <SPI.h>
    
    #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 1  // GPIO value to write to turn on attached relay
    #define RELAY_OFF 0 // GPIO value to write to turn off attached relay
    
    // NRFRF24L01 radio driver (set low transmit power by default) 
    MyTransportNRF24 radio(RF24_CE_PIN, RF24_CS_PIN, RF24_PA_LEVEL_GW);  
    //MyTransportRFM69 radio;
    // Message signing driver (none default)
    //MySigningNone signer;
    // Select AtMega328 hardware profile
    MyHwATMega328 hw;
    // Construct MySensors library
    MySensor gw(radio, hw);
    
    void setup()  
    {   
      // Initialize library and add callback for incoming messages
      gw.begin(incomingMessage, AUTO, true);
      // Send the sketch version information to the gateway and Controller
      gw.sendSketchInfo("Relay", "1.0");
    
      // Fetch relay status
      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)
        gw.present(sensor, S_LIGHT);
        // Then set relay pins in output mode
        pinMode(pin, OUTPUT);   
        // Set relay to last known state (using eeprom storage) 
        digitalWrite(pin, gw.loadState(sensor)?RELAY_ON:RELAY_OFF);
      }
    }
    
    
    void loop() 
    {
      // Alway process incoming messages whenever possible
      gw.process();
    }
    
    void incomingMessage(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
         gw.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());
       } 
    }
    

    This is output of SerialMonitor

    fisend: 105-105-0-0 s=255,c=3,t=15,pt=2,l=2,sg=0,st=ok:0
    send: 105-105-0-0 s=255,c=0,t=18,pt=0,l=5,sg=0,st=ok:1.5.4
    send: 105-105-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0
    repeater started, id=105, parent=0, distance=1
    send: 105-105-0-0 s=255,c=3,t=11,pt=0,l=5,sg=0,st=ok:Relay
    send: 105-105-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.0
    send: 105-105-0-0 s=1,c=0,t=3,pt=0,l=0,sg=0,st=ok:

    Now I want to send Message from gateway to switch the relay pin 3 of RelayActuator , please guide me I am new to mysensor. How can i send a message from gateway to RelayActuator node.


  • Admin

    Use the development branch (at least on gateway).

    // Prepare message
    MyMessage msg(1, V_STATUS);
    msg.setDestination(105);
    
    //.... and where you want to send add... 
    
    send(msg.set(1));  // Turn on
    send(msg.set(0));  // Turn off
    
    
    


  • And if we want to send message through Serial Monitor


  • Admin

    Then you just have to read the instructions here:
    http://www.mysensors.org/download/serial_api_15



  • void incomingMessage(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
         gw.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());
       } 
    

    The incomingMessage function in RelayActuator is checking message type as V_LIGHT
    how can we send this message from serial monitor of SerialGateway


  • Admin

    V_LIGHT (alias for V_STATUS) has sub-typ value 2 if you look in the table.



  • what does this function does
    msg.setDestination(105);


  • Admin

    Your node seems to have id 105 (telling from serial log). So in order to send message from the gateway itself you have to set that destination of the message.

    If you send through the serial interface you also need to specify the correct node id of course.



  • Thanks that really worked for me.


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