Relay and Repeater - Just learning stuff

[punter9]

So I have several nodes going in the house. I love mysensors and really appreciate all who have made this possible.

Today I am looking into repeaters and learning how to make my custom multi sensor nodes into repeaters. Specifically any with a relay since they process incoming messages. From what I can tell they already are. Could someone fact check me to make sure I am thinking about this correctly?

1.) To make a repeater node you first off cannot have any sort of sleep function

2.) You need this code to enable repeater mode, specifically I think you only need the true part.

gw.begin(NULL, AUTO, true);

this would also work i am thinking

gw.begin(incomingMessage, AUTO, true);

3.) This is what makes a repeater do repeater things.

gw.process();

[sundberg84]

Hi!

Not the expert, but I think you are on the right track.
The gw.begin(incomingMessage, AUTO, true); is only needed if you have a senser expecting incoming messages.
If its only a repeater you can use the first one.

Br

[TheoL]

I have never worked with the repeater but I just hacked an example for you. I'm not able to test it and I don't know if this will effect the performance of the repeater. But at least it compiles.

For test purposes it might be better to hook an led with a 220 ohm resistor to the relay_pin.

/**
 * 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 create a node thay repeates messages
 * from nodes far from gateway back to gateway. 
 * It is important that nodes that has enabled repeater mode calls  
 * gw.process() frequently. Repeaters should never sleep. 
 */

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

#define CHILD_ID_RELAY 1   // Id of the sensor child
#define RELAY_PIN 3 // The pin for controling the relay


MySensor gw;

void setup()  
{  
  // The third argument enables repeater mode.
  gw.begin( incomingMessage, AUTO, true);

  //Send the sensor node sketch version information to the gateway
  gw.sendSketchInfo("Repeater Node", "1.0");
  pinMode (RELAY_PIN, OUTPUT );
  gw.present(CHILD_ID_RELAY, S_LIGHT);

}

void loop() 
{
  // By calling process() you route messages in the background
  gw.process();
}

void incomingMessage(const MyMessage &message) {
  if (message.type==V_LIGHT) {
     if ( message.sensor == CHILD_ID_RELAY ) {
        digitalWrite( RELAY_PIN, message.getBool()? HIGH :LOW );
     }
   }
}

Let me know if it works. Might be somthing I'll be needing myself

[jl277013]

Do I need to link/pair the repeater node to the gateway or does it just work when I power it up?