It’s my first post today. I am building a lock system and in my result, I need to control 2 selenoids (Independently). Basically, I am looking for a way to switch the impulse between pins.
The system is based on QR verification. External software will be communicating with esp and esp (based on the input) will decide which selenoid should open.
I am mostly a web dev with a lack of expertise in embedded stuff and so far I’ve made simple solutions based on one of the youtube tutorials. It looks like this (esp instead of raspberry).
I wonder how I could extend this construction to achieve the below. Do I need an alternate 12v supply, alternate relay, etc? Or maybe some transistors? I would appreciate any hint