ESP32: control of 2 locks with application, wiring diagram, power supply, communication

Hi

I am working on a project related to lock control (2). My solution will be based on esp32 an external application that will communicate with esp32. Based on the output, one of the two locks should open for a certain time.

I stress that I am green in matters of electronics hence I ask for your understanding


Below I paste the diagram (1 is the original for one lock and 2 is my idea for the extension to two locks).



I'm not sure if a second power supply is needed? Perhaps one is sufficient and the whole circuit can be simplified.

In my opinion, one power supply is enough.
+ (in your case red) you connect to the C connectors in the relays (you make a bridge between them), respectively from NO or NC of each relay you connect to the locks.