set Metric on gw?

[gigaguy]

Sorry, I am brand new to MySensors. I see in all the examples there is a gw.getConfig().isMetric

I know this is a new feature. Trying to figure out how to set this, before I update all my nodes with the metric part just commented out.

Can I push this setting out from openhab (via SerialGateway)?
TIA.

[hek]

The node sends an I_CONFIG request at startup. Create a rule that replies to this (with the same internal I_CONFIG). Payload should be M(etric) or I for imperial.

http://www.mysensors.org/download/serial_api_14

[gigaguy]

Guess I should have posted this code initially. I already have that rule in place, and still no luck. (I couldnt get "gw.requestTime(receiveTime)" to work either)

This is in the setup portion in arduino sketch

  metric = gw.getConfig().isMetric;

Only posted relevant portions of the code. The rule itself works (for V_TEMP, etc), just none of the "internal commands I_*" do.

var int I_CONFIG = 6

//receiving msg from mysensors gateway
rule "Arduino sends to Openhab"
    when
        Item Arduino received update
    then
        var String lineBuffer =  Arduino.state.toString.split("\n")
        for (String line : lineBuffer) {
            var String[] message = line.split(";")
            var Integer nodeId = new Integer(message.get(0))
            var Integer childId = new Integer(message.get(1))
            var Integer msgType = new Integer(message.get(2))
            var Integer ack = new Integer(message.get(3))
            var Integer subType = new Integer(message.get(4))
            var String msg = message.get(5)

           // Internal Command
            if(msgType == 3){
                if(subType == I_CONFIG){
                        var String unit
                        unit = "I"
                        //unit = "M"
                        sendCommand(Arduino, nodeId + ";255;3;0;6;" + unit + "\n")
                        println("Updated Sensor Units to " + unit +)
                    }
                }
            }
end

This is what openhab is getting when the arduino is reset.

101;255;3;0;11;Humidity
0;0;3;0;9;read: 101-101-0 s=255,c=3,t=12,pt=0,l=3:1.0
101;255;3;0;12;1.0
0;0;3;0;9;read: 101-101-0 s=0,c=0,t=7,pt=0,l=5:1.4.1
101;0;0;0;7;1.4.1
0;0;3;0;9;read: 101-101-0 s=1,c=0,t=6,pt=0,l=5:1.4.1
101;1;0;0;6;1.4.1
0;0;3;0;9;read: 101-101-0 s=2,c=0,t=4,pt=0,l=5:1.4.1
101;2;0;0;4;1.4.1
0;0;3;0;9;read: 101-101-0 s=3,c=2,t=3,pt=0,l=0:
101;3;2;0;3;
0;0;3;0;9;read: 101-101-0 s=1,c=1,t=0,pt=7,l=5:26.0
101;1;1;0;0;26.0
0;0;3;0;9;read: 101-101-0 s=0,c=1,t=1,pt=7,l=5:34.0
101;0;1;0;1;34.0

Shouldnt there be something like

101;255;3;0;6;?

[Tango2]

I was able to see the request come into the gw on mine, however I'm not sure how the reply should be structured given the sensor node is 101.

[gigaguy]

Ok, it just started working !!!! I created a separate rul for it. So either it doesnt like being mixed in with the other stuff or it doesnt like the == I_CONFIG

This rule below is working

rule "Arduino config"
    when
        Item Arduino received update
    then
        var String lineBuffer =  Arduino.state.toString.split("\n")
        for (String line : lineBuffer) {
            var String[] message = line.split(";")
            var Integer nodeId = new Integer(message.get(0))
            var Integer childId = new Integer(message.get(1))
            var Integer msgType = new Integer(message.get(2))
            var Integer ack = new Integer(message.get(3))
            var Integer subType = new Integer(message.get(4))
            var String msg = message.get(5)
            // Internal Command
            if(msgType == 3){
                if(subType == 6){
                        var String unit
                        unit = "I"
                        //unit = "M"
                        sendCommand(Arduino, nodeId + ";255;3;0;6;" + unit + "\n")
                        println("Updated Sensor Units to " + unit +)
                    }
                }
           }

    end

[Tango2]

Glad you got yours working. I tried changing the code on mine to see if it would respond, but it didn't. I may have hard coded the sensors to imperial though. I believe mine is catching the I_CONFIG variable, because I would get an output on the console when the sensor started up where I had a println command. Hopefully it was just my syntax that was wrong.

On another note, can you trigger a "sendCommand" with xxx;255;3;0;6;<I or M> at any time, or can it only be in response to the request from the sensor node?

[gigaguy]

@Tango2 I had been doing this a different way until I noticed the GW should be able to do it. BTW, It is only working on one node, not sure why :(.

Anyway, my alternate solution allows be to send "settings: to the nodes. For example, change the loop time or measurement unit.

This is not the complete code, just the relevant parts (hopefully).

void setup()  
{ 
gw.begin(incomingMessage, nodeID);
}
void loop()
{
    gw.process();  
}
void incomingMessage(const MyMessage &message) {
  if (message.type == 97) {
    Serial.print("Recvd Time");
    Serial.println(time);
    timeReceived=true;  
  }
  if (message.type == 98) {
    int reqsleep = atoi( message.data );
    SLEEP_TIME = reqsleep*1000;
    Serial.print( "Changing sleep to: " );
    Serial.println( String(reqsleep) );
  }
  if (message.type == 99) {
    int requnit = atoi( message.data );
    Serial.print( "Changing units to: " );

    if(requnit == M){
      metric = true;
      Serial.println( "metric" );
    } else {
      metric = false;
      Serial.println( "imprerial" );
    }          
  }
}

Using this code, I can send things from openhab, or any serial command I suppose.

My openhab rules
Send Units:

sendCommand(Arduino, "101;99;1;0;99;M\n")

Send Time:

var Number time1
time1 = now().getMillis() / 1000
sendCommand(Arduino, "101;97;1;0;97;" + time1 + "\n")