Allright that's clear then. So you use the esp only as a controller.

Thank you for the solutions provided.

I've used the build suggested by lucaberta and changed the vcc line in the sourcecode.

Dear Richard,

What is your current wiring setup?

I wanna setup a esp8266 with the wiegand in combination with a door lock.

But the esp sends it to domoticz i assume? How do you control the door lock from there?

Or do I understand it wrong?

Kind Regards,

Dear people,

I have a setup with a esp-1 with a temperature sensor ds18b20. Connected with 2 aa batteries.

Is it possible to get a reading of the battery level? I use domoticz to receive the temp status.

Kind Regards,

Fabian