Get Relay State

[mikeones]

Is there an options to get the state of a relay? The API shows there is a light status option but it looks like it only sets the state.

V_LIGHT 2 Light status. 0=off 1=on

Here is the part of the relay sketch I am looking at.

void setRelayStatus(message_s message) {
if (message.header.messageType==M_SET_VARIABLE &&
 message.header.type==V_LIGHT) {
 int incomingRelayStatus = atoi(message.data);
 // Change relay state
 digitalWrite(message.header.childId,  incomingRelayStatus==1?RELAY_ON:RELAY_OFF);
  // Write some debug info
  Serial.print("Incoming change for relay on pin:");
  Serial.print(message.header.childId);
  Serial.print(", New status: ");
  Serial.println(incomingRelayStatus);
 }
}

Is there something similar to the lock status variable for a relay?

V_LOCK_STATUS 36 Set or get lock status. 1=Locked, 0=Unlocked

[epierre]

you should write the last k own status in a var and request the var on startuo

[mikeones]

@epierre What would that look like? I was thinking of sending back the status on request. Something like this.

void setRelayStatus(message_s message) {
	if (message.header.messageType==M_SET_VARIABLE &&
		message.header.type==V_LIGHT) {
		int incomingRelayStatus = atoi(message.data);
		if incomingRelayStatus == 2 {
			gw.sendVariable(message.header.childId, V_LIGHT, digitalRead(message.header.childId)); 
		} else {
			// Change relay state
			digitalWrite(message.header.childId, incomingRelayStatus==1?RELAY_ON:RELAY_OFF);
			// Write some debug info
			Serial.print("Incoming change for relay on pin:");
			Serial.print(message.header.childId);
			Serial.print(", New status: ");
			Serial.println(incomingRelayStatus);
		}
	}
}

[epierre]

I don't know why you use a telay. Look at thr watermeter code, it uses the pattern I described above