Controlling Relay Actuator

sundberg84

I have read alot of reports here lately with this issue in both Domoticz and Vera (pushing button works, but not sending from controller to relay). I dont know why but i tried it myself with 2.0b and exact the same behaivour. It works with my 1.4 relays but not 2.0...

I have no more info at this time but will try to figure something out when i have the time...

sundberg84

Have not been able to test this (@ work), but according to Domoticz github it looks like Domoticz sends V_STATUS to update a Lightning2.
In the sketch we have message.type == V_LIGHT

MySensors github:

S_LIGHT, // Binary light or relay, V_STATUS (or V_LIGHT), V_WATT

Domoticz github:

SendNodeSetCommand(node_id, child_sensor_id, MT_Set, V_STATUS, lState, pChild->useAck);

MySensors Github RelayWityButtonAcc

if (message.type == V_LIGHT) {

Im not that good in understanding coding, but this would be the first im going to experiment with tonight.

BartE

V_LIGHT and V_STATUS are complementary to each other they are both are defined as 2.

There are however a couple of remarks regarding your code.

when the button is pressed only a message is sent to the GW the relay is not toggled
when a state change request is received there is no status update sent to the gatewat
a minor issue debouncer.update() return true when a change change was detected so you do not have to remember the old state.

All three comments I've processed in the sketch below you might want to try this

/**
 * 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 for a "light switch" where you can control light or something 
 * else from both HA controller and a local physical button 
 * (connected between digital pin 3 and GND).
 * This node also works as a repeader for other nodes
 * http://www.mysensors.org/build/relay
 */ 

#include <MySensor.h>
#include <SPI.h>
#include <Bounce2.h>

#define RELAY_PIN  4  // Arduino Digital I/O pin number for relay 
#define BUTTON_PIN  3  // Arduino Digital I/O pin number for button 
#define CHILD_ID 1   // Id of the sensor child
#define RELAY_ON 1
#define RELAY_OFF 0

Bounce debouncer = Bounce(); 
bool state;
MySensor gw;
MyMessage msg(CHILD_ID,V_LIGHT);

void setup()  
{  
  gw.begin(incomingMessage, AUTO, true);

  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Relay & Button", "1.0");

 // Setup the button
  pinMode(BUTTON_PIN,INPUT);
  // Activate internal pull-up
  digitalWrite(BUTTON_PIN,HIGH);
  
  // After setting up the button, setup debouncer
  debouncer.attach(BUTTON_PIN);
  debouncer.interval(5);

  // Register all sensors to gw (they will be created as child devices)
  gw.present(CHILD_ID, S_LIGHT);

  // Make sure relays are off when starting up
  digitalWrite(RELAY_PIN, RELAY_OFF);
  // Then set relay pins in output mode
  pinMode(RELAY_PIN, OUTPUT);   
      
  // Set relay to last known state (using eeprom storage) 
  state = gw.loadState(CHILD_ID);
  digitalWrite(RELAY_PIN, state?RELAY_ON:RELAY_OFF);
}


/*
*  Example on how to asynchronously check for new messages from gw
*/
void loop() 
{
  gw.process();
  // Get the update value and if push button was release toggle the relay and send an update to the gw
  if (debouncer.update() && debouncer.read() != 0) {
      state = state ? true : false;
      gw.send(msg.set(state?false:true), true); // Send new state and request ack back
      digitalWrite(RELAY_PIN, state?RELAY_ON:RELAY_OFF);
  }
} 
 
void incomingMessage(const MyMessage &message) {
  // We only expect one type of message from controller. But we better check anyway.
  if (message.isAck()) {
     Serial.println("This is an ack from gateway");
  }

  if (message.type == V_LIGHT) {
     // Change relay state
     state = message.getBool();
     digitalWrite(RELAY_PIN, state?RELAY_ON:RELAY_OFF);
     // Store state in eeprom
     gw.saveState(CHILD_ID, state);
     
     // Send new state to the GW
     gw.send(msg.set(state?false:true)); 
      
     // Write some debug info
     Serial.print("Incoming change for sensor:");
     Serial.print(message.sensor);
     Serial.print(", New status: ");
     Serial.println(message.getBool());

   } 
}

sundberg84

Sorry about that... yea see that they are the same now. Spared me some time there BartE - tnx. He is using the standard sketch and this has been working great ever since... strange.

martinhjelmare

@BartE

Regarding 1.
I think the point is to wait for the acknowledge from the controller before changing relay state, after the press of the button.

sundberg84

and regarding 2 - why send a statusupdate to controller when the status comes from the controller? The ack should be enough?

sundberg84

So, recreated this now - all standard sketch (2.0b) except I used pin 5 instead of pin4 for relay (due to PCB pinout layout, should not matter).

Everything works great both from Domoticz and Myscontroller but there was some small issues...

Power - my pro mini was just a little to weak to trigger the relay... :( It needs 5v but my pin 5 was only giving 4.7V and some tries resulted in a unsuccessful relay switch even if the logs told me so.
Radio - at some points i had the radio to close to the gw, so it didnt get the ACK and therefore i got the error "Error sending command, check device/hardware" message in Domoticz .

This is from Myscontroller, sending a on command with ack:

Correct seriallog node when incoming command from controller
read: 0-0-4 s=1,c=1,t=2,pt=0,l=1,sg=0:1
send: 4-4-0-0 s=1,c=1,t=2,pt=0,l=1,sg=0,st=ok:1
Incoming change for sensor:1, New status: 1

What i dont know if why it works one way (command) but not the other (ack). I guess my GW radio is stronger, bigger or better powered.

BartE

@sundberg84 your right the ack should be enough

@martinhjelmare this should be enough, but when for some reason your network is down you'r not able to control the devices locally

martinhjelmare

Yes, good point.

Maybe one could have a timeout event that compares button state with relay state, and after three failed comparisons, turns off the waiting for the acknowledge, as a sign of network failure.

sundberg84

@BartE, @martinhjelmare - this is sometime we should work with in the standard sketch.
I have one relay on the edge and sometimes its having really hard to get that ack back from the controller and it never changes. It would be good if the relay made the switch, send the on/off to controller and waited for the ack. If you dont recieve it you send again and tries for some times.

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