I was wondering about power supply.
Confused about pure power. I want to use a AC to DC power supply, but not sure what to use.
It looks like the RFID board wants 6v to work optimally.
The solenoid latch takes 12v and I think the relays that I got with the latch are triggered with 5v input.
Hoping to use one power supply for the whole project, but not sure how to step up or down voltages for the different components and the arduino.