I am hoping I can use this device to detect the ‘ON’ LED on my Central heating boiler & feed the on/off status into Home Assistant (just need a binary on/off, not an analogue light level value)
I’ve never connected anything to Raspberry Pi GPIO pins before. Can anyone give advice about how to achieve this or direct me to suitable web resources?
Did you ever get this working? I am using the same LM393 on an ESP32 board for a simple light sensor but having trouble getting the yaml files correct. Was hoping you had this worked out.
Although, I think I had to do some ‘jiggery-pokery’ at the command line to enable the device (I’m afraid it was that long ago I’ve forgotten what I had to do, but it was all somewhere in Google)