Auto discovery of pulses

[mcipjvw]

Hey there,

I have a MQTT auto discovery sensor system. Works well for the common sensors.

But....
I have a machine now rotating 5 /min with a pulse counter attached, so 5 pulses/min if it is rotating. When I announce the sensor to domoticz as "counter", it indeed creates the counter sensor, but with kWh unit. How can I configure the counter without dimension?

I have c++ code like this:

mqttcfg["name"] = "Count sensor";
mqttcfg["uniq_id"] = uniq_id;
mqttcfg["component_type"] = "sensor";
mqttcfg["icon"] = "pulse";
mqttcfg["unit_of_measurement"] = "counter";
mqttcfg["val_tpl"] = "{{value_json.cntr}}";
mqttcfg["stat_t"] = statetopic.c_str();

Any suggestions? Thanks!
BR Martin

[waltervl]

There is no pulse counter device in Domoticz other the the S0 energy meter. But i do not think that can be created from MQTT Auto discovery.

If you want to count pulses you have to create some custom sensor or incremental counter https://wiki.domoticz.com/Dummy_for_vir ... ncremental

If you only want to monitor if the device is rotating you better have your hardware measuring the 5 rpm and send a regular ON if rpm >= 5 and OFF when < 5 by MQTT to a Domoticz switch.

[gizmocuz]

Maybe not a 100% answer, but this is how I created a watermeter that works with pulses that works with MQTT-AD

https://github.com/gizmocuz/esp_proximity_sensor_mqtt

[mcipjvw]

Thanks guys. I think I will announce the pulse sensor for now as 'on' / 'off' switch. Right now I want to know whether the thing is rotating or not, but would be nice to have some more MQTT configuration possibilities, e.g. to set it to type=' custom' immediately.
BR Martin

[gizmocuz]

You see the configuration at the bottom of my arduino code in the link above

[mcipjvw]

Thanks! I looked at your code.
The MQTT configuration and sensor anouncement was already working. It is just that the 'Counter Type' must be set to 'Custom' manually in domoticz when you want the counter to be dimension less. It would be nice to do this inside the MQTT configuration.
But, once set to 'Custom', it is working as expected: daily pulses in a graph.
The device info structure is nice, but is domoticz doing something with this?

[gizmocuz]

Yep, make sure you also send

Code: Select all

autoconfPayload["icon"] = "mdi:counter-inc"; //incremental counter

This will let Domoticz create a device with the following type

devType = pTypeGeneral;
subType = sTypeCounterIncremental;

instead of

devType = pTypeRFXMeter;
subType = sTypeRFXMeterCount;

[mcipjvw]

Hi gizmocuz,

Some time ago, but thanks for your support.
What is Domoticz doing with the device info, like "sw-version" and "manufacturer" ?

BR Martin