The ESP32 has a lousy reputation for its ADC, and I will need it.
I know believe a faster track is to acquire an ethernet shield for the Arduino Uno, use the original code for the heat pump controller and integrate the ethernet code to reach the MQTT broker.

Thanks. There are also two other options with ESP32: ESPEasy: Rules can do some operations, however with very limited number of characters for code. Easy integration with Domoticz on MQTT. Tasmota: Scripting with Berry is powerful and could do the control job. Also easy integration with Domoticz on ...

Thanks! Could be possible, but seems more complicated than I was hoping for. Maybe I have two other options: - install an ethernet or wifi shield on the Arduino Uno and try connecting to the MQTT broker with your first tip - translate code to an ESP32 and use that built-in wifi to connect to MQTT ...

Thank you for the reply!
I have Mosquitto MQTT on the rpi, and use it for most actuators and sensors in the house.
Is this also a viable solution over the usb port?

Hi everybody! I am trying to get a ground source heat pump integrated into my system. I got this brand new prototype heat pump for free, but with no functioning controller board. Small model, just 8 kW max output. I intend to reuse the pre-installed pressure and temperature sensors and relays to get ...

Sounds very nifty! Have a great weekend!

waltervl, you're right! I figured out now, and MQTT Explorer was a great tip. MQTT hardware is activated in Domoticz, and there is traffic for every event. So I have ESPEasy with plugin 029 Output included (https://www.letscontrolit.com/wiki/index.php/Official_plugin_list). I configure the Domoticz ...

Hi all, I am using Domoticz 2021.1 on raspberry pi 3B+ for controlling a heat pump and floor heating among other things. I have several distributed ESP32 with ESPEasy installed, and failing to figure out how to control switches in ESPEasy via MQTT, I ended up using http commands to gpio ports. They ...