PWM read with Pi and Domoticz

[njlammerts]

Is it possible to "read" the PWM signal with Pi/Domoticz?

I have a Solar Boiler solution with a PWM Pump wich is controlled by a Sorel controller, where the controller sends a PWM signal (10V) to the pump to control the speed.
I would like to read the "speed" of the pump based on the PWM signal wich is between 2-99%

[waltervl]

I searched a little bit and it seems not possible with current integrations (RPi GPIO or I2C).
The RPi is able to read the PWM with its GPIO so you will have to write an external python or bash script that reads the PWM pin and sends the date to a virtual Domoticz device. I hope I gave you enough keywords to find the solutions.

[njlammerts]

I also searched, and found there is no "out of the box" solution, therefore i posted this question. maybe some other user found a way to read the PWM with a custom made solution or maybe a hack of some other device, eventually with some python or other script

[FireWizard]

Hi,

You can try something with Node-RED.

See: https://nodered.org/docs/faq/interacting-with-pi-gpio

If you Google with node red pwm you might find more options.
Regards