It's my first post here. I'm building lock system and in my solution I need to control 2 selenoids (Indenpendently). Basically I'm looking for the way to switch the impuls between pins.
System is based on qr verification. External software will be communicating with esp and esp (basing on the input) will decide which selenoid should open.
I'm moslty web dev with lack of skills in embedded stuff and so far I have build simple solution based on one of the youtube tutorials. It looks like this (esp instead of raspbery):
I wonder how I could extend this construction to achieve the above? Do I need second 12v supplu, second relay etc? Or maybe some transistors? I would appreciate any hint
