Because I don't want to have an extra power supply, I check whether I already have direct current somewhere in the housing. I'm lucky, the original control is operated with 12V.
That means I also have to use a DC-DC StepDown converter so that the ESP8266 can be supplied with 5V.

Discussions
Become a Hackaday.io Member
Create an account to leave a comment. Already have an account? Log In.