I want to detect if the light in the garage door opener is On or Off. It is 24V DC. What do I need to do to detect this in a 3.3V ESP2866?
3 posts - 2 participants
I want to detect if the light in the garage door opener is On or Off. It is 24V DC. What do I need to do to detect this in a 3.3V ESP2866?
3 posts - 2 participants