MT681 - Energy Meter
hyla last edited by
my electricity supplier swapped meters: we've now got a MT681 and I was forced to get rid of my old sensor.
So far things seem to work okay-ish, but there are a few things I don't quite understand...
I've adapted the current "EnergyMeterPulseSensor" example.
The optical sensor is connected to a ESP32 which is doubling as a Gateway.
These are "MyMessages":
MyMessage wattMsg(CHILD_ID, V_WATT); MyMessage kWhMsg(CHILD_ID, V_KWH);
The Sketch Info:
sendSketchInfo(F("Energy Meter"), F("1.1"));
B.t.w.: what's the "F" for? That didn't use to be there ...
I then present the device to Domoticz:
And in the loop I send my data:
send(kWhMsg.set(kWh, 4)); // Send kWh value to gw send(wattMsg.set(Watt,0)); // Send watt value to gw
"Watt" being the current usage, "kWh" the total consumption that was registrated by my fancy MT681
since we received it.
In Domoticz I get just one device: Type "general", Subtype "kWh". In the log I get a "Power Usage" graph
and a block graph telling me the "Energy usage" during one hour. Is there a way to display the current energy
counter state as well. I seem to remember that it used to show up somewhere...
In the hardware section my gateway/sensor node has 7 children with curious values:
How did that happen? I would expect to have three children there: S_Power, S_Custom and the S_Arduino_Node...
S_Custom was an experiment to add a RSSI value (via "WiFi.RSSI()"). Didn't work though. I did get values for RSSI
but couldn't figure out as what/how to send them to Domoticz. Any ideas here?
The F things is for Flash. It is optional, but saves ram. Detailed information at http://www.gammon.com.au/progmem
I don't know about the children stuff.