Is it ok to have two gateways?

@hek Thank you! I will try it as soon as I go home. Can you tell me what is the expected output from the gateway if I use static id 2 for a relayActuator that I turned on?

will it be just "2;1;1;0;2;1" or will "2;255;x;x;x;x" appear? only the read/send data is hidden

@hek can you please help me on what should I comment out?

Should I post my new question on another board?

Re: s there a way to receive only the last state of the sensors/actuators in the serial?

@Stric Removed it but still the read and send appears

I placed if statement in serial function inside MyGateway.cpp
where 0 is the gateway address

void MyGateway::serial(MyMessage &msg) {
  if (msg.sender != 0); serial(PSTR("%d;%d;%d;%d;%d;%s\n"),msg.sender, msg.sensor, mGetCommand(msg), mGetAck(msg), msg.type, msg.getString(convBuf));
}

Still it doesnt work.

Heres the format:

    msg.sender = GATEWAY_ADDRESS;
	msg.destination = destination;
	msg.sensor = sensor;
	msg.type = type;
	mSetCommand(msg,command);
	mSetRequestAck(msg,ack?1:0);
	mSetAck(msg,false);
	if (command == C_STREAM)
		msg.set(bvalue, blen);
	else
		msg.set(value);

Is there a way to receive only the last state of the sensors/actuators in the serial?

instead of:

0;0;3;0;9;read: 2-2-0 s=1,c=1,t=2,pt=2,l=2:1
0;0;3;0;9;send: 0-0-2-2 s=1,c=1,t=2,pt=2,l=2,st=ok:1
2;1;1;0;2;1

it only print the "2;1;1;0;2;1" on the serial

@rvendrame You know what. I'm really thankful for you help and I'm really sorry for dragging you with me. I can turn the light on now. I just have to print "2;1;1;1;2;0;" instead of "2;1;1;1;2;1".

I will check if I will encounter any problem because of my relay module.
Again, thank you so much for your help. And I'm really sorry.

@rvendrame My relay is more like this http://www.elecdesignworks.com/images/stories/virtuemart/product/img_62112.jpg

Thank you for your reference.
It has a transistor. I hope it's ok to use. I have tested it by following an instructable.

@rvendrame No transistor. I just followed MySensors: Build Relay Actuator. I directly connected the 5v, gnd and signal to the arduino.

@rvendrame The light is still not turning on :sweat:
I even change it to "2;257;1;1;2;1" just incase 255 is the message.sensor but it still prints "2;1;1;1;2;1" so I there's no problem there.

sensor started, id 2
send: 2-2-0-0 s=255,c=0,t=17,pt=0,l=5,st=ok:1.4.1
send: 2-2-0-0 s=255,c=3,t=6,pt=1,l=1,st=ok:0
send: 2-2-0-0 s=255,c=3,t=11,pt=0,l=5,st=ok:Relay
send: 2-2-0-0 s=255,c=3,t=12,pt=0,l=3,st=ok:1.0
send: 2-2-0-0 s=1,c=0,t=3,pt=0,l=5,st=ok:1.4.1
read: 0-0-2 s=1,c=1,t=2,pt=0,l=1:1
send: 2-2-0-0 s=1,c=1,t=2,pt=0,l=1,st=ok:1
Incoming change for sensor:1, New status: 1

I just changed the gw.begin();

// Example sketch showing how to control physical relays. 
// This example will remember relay state even after power failure.

#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

MySensor gw;

void setup()  
{   
  // Initialize library and add callback for incoming messages
  gw.begin(incomingMessage, 2);
  // 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());
   } 
}

It still doesn't open the light even if I change it to "2;255;1;1;2;1;"
I checked the relay using relay.ino from an instructable controlling ac light with relay and it's working.

@rvendrame Sorry I forgot to include that, I edited the post

I tried entering message on the serial monitor of the gateway but still no luck.
This is the closest thing that I did to tell the relay to turn the light on.

Gateway output after I enter "2;0;1;1;2;1;" to the Serial monitor:

0;0;3;0;14;Gateway startup complete.
0;0;3;0;9;read: 2-2-0 s=255,c=0,t=17,pt=0,l=5:1.4.1
2;255;0;0;17;1.4.1
0;0;3;0;9;read: 2-2-0 s=255,c=3,t=6,pt=1,l=1:0
2;255;3;0;6;0
0;0;3;0;9;read: 2-2-0 s=255,c=3,t=11,pt=0,l=5:Relay
2;255;3;0;11;Relay
0;0;3;0;9;read: 2-2-0 s=255,c=3,t=12,pt=0,l=3:1.0
2;255;3;0;12;1.0
0;0;3;0;9;read: 2-2-0 s=1,c=0,t=3,pt=0,l=5:1.4.1
2;1;0;0;3;1.4.1
0;0;3;0;9;send: 0-0-2-2 s=0,c=1,t=2,pt=0,l=1,st=ok:1
0;0;3;0;9;read: 2-2-0 s=0,c=1,t=2,pt=0,l=1:1
2;0;1;1;2;1

Relay output after "2;0;1;1;2;1;" :

sensor started, id 2
send: 2-2-0-0 s=255,c=0,t=17,pt=0,l=5,st=ok:1.4.1
send: 2-2-0-0 s=255,c=3,t=6,pt=1,l=1,st=ok:0
send: 2-2-0-0 s=255,c=3,t=11,pt=0,l=5,st=ok:Relay
send: 2-2-0-0 s=255,c=3,t=12,pt=0,l=3,st=ok:1.0
send: 2-2-0-0 s=1,c=0,t=3,pt=0,l=5,st=ok:1.4.1
read: 0-0-2 s=0,c=1,t=2,pt=0,l=1:1
send: 2-2-0-0 s=0,c=1,t=2,pt=0,l=1,st=ok:1
Incoming change for sensor:0, New status: 1

Still it doesn't turn on the light

Good news! The gateway is now working :)
I changed the dallas temperature to relay actuator and, yes, it's now working!
Bad news is I still don't know what went wrong with my temperature sensor.
I'll investigate on it soon.

This is the gateway output:

0;0;3;0;14;Gateway startup complete.
0;0;3;0;9;read: 2-2-0 s=255,c=0,t=18,pt=0,l=5:1.4.1
2;255;0;0;18;1.4.1
0;0;3;0;9;read: 2-2-0 s=255,c=3,t=6,pt=1,l=1:0
2;255;3;0;6;0
0;0;3;0;9;read: 2-2-0 s=255,c=3,t=11,pt=0,l=5:Relay
2;255;3;0;11;Relay
0;0;3;0;9;read: 2-2-0 s=255,c=3,t=12,pt=0,l=3:1.0
2;255;3;0;12;1.0
0;0;3;0;9;read: 2-2-0 s=1,c=0,t=3,pt=0,l=5:1.4.1
2;1;0;0;3;1.4.1

This is the relay output:

repeater started, id 2
send: 2-2-0-0 s=255,c=0,t=18,pt=0,l=5,st=ok:1.4.1
send: 2-2-0-0 s=255,c=3,t=6,pt=1,l=1,st=ok:0
send: 2-2-0-0 s=255,c=3,t=11,pt=0,l=5,st=ok:Relay
send: 2-2-0-0 s=255,c=3,t=12,pt=0,l=3,st=ok:1.0
send: 2-2-0-0 s=1,c=0,t=3,pt=0,l=5,st=ok:1.4.1

I just need to test it.
Since I'll be using a gsm to control the relay. Can you help me on what to send to the relay to turn it on/off?

I'm using the DallasTemperatureSensor.ino on MySensors library. I just change the gw.begin(); to gw.begin(NULL, 1);

// Example sketch showing how to send in OneWire temperature readings
#include <MySensor.h>  
#include <SPI.h>
#include <DallasTemperature.h>
#include <OneWire.h>

#define ONE_WIRE_BUS 3 // Pin where dallase sensor is connected 
#define MAX_ATTACHED_DS18B20 16
unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
MySensor gw;
float lastTemperature[MAX_ATTACHED_DS18B20];
int numSensors=0;
boolean receivedConfig = false;
boolean metric = true; 
// Initialize temperature message
MyMessage msg(0,V_TEMP);

void setup()  
{ 
  // Startup OneWire 
  sensors.begin();

  // Startup and initialize MySensors library. Set callback for incoming messages. 
  gw.begin(NULL,1); 

  // Send the sketch version information to the gateway and Controller
  gw.sendSketchInfo("Temperature Sensor", "1.0");

  // Fetch the number of attached temperature sensors  
  numSensors = sensors.getDeviceCount();

  // Present all sensors to controller
  for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {   
     gw.present(i, S_TEMP);
  }
}


void loop()     
{     
  // Process incoming messages (like config from server)
  gw.process(); 

  // Fetch temperatures from Dallas sensors
  sensors.requestTemperatures(); 

  // Read temperatures and send them to controller 
  for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {
 
    // Fetch and round temperature to one decimal
    float temperature = static_cast<float>(static_cast<int>((gw.getConfig().isMetric?sensors.getTempCByIndex(i):sensors.getTempFByIndex(i)) * 10.)) / 10.;
 
    // Only send data if temperature has changed and no error
    if (lastTemperature[i] != temperature && temperature != -127.00) {
 
      // Send in the new temperature
      gw.send(msg.setSensor(i).set(temperature,1));
      lastTemperature[i]=temperature;
    }
  }
  gw.sleep(SLEEP_TIME);
}

@rvendrame said:

@fakeJake , are the node far from gateway, or any obstacle (such as a wall) in between? Another source of interference is for example a microwave.

They are just 6 inches apart :worried:

@rvendrame said:

Maybe this may cover it http://www.mysensors.org/download/serial_api_14

It only explains the "0;0;3;0;14;" but not the "s=255,c=3,t=11,pt=0,l=18,st=fail:Temperature Sensor" that it sends or reads