ESP01 Control

Input 220v,

Should be transformed to 12v (for coin acceptor) and 3.3v (for ESP-01 module).

Choose to use a 5v power supply, and from that - to boost to 12v, and use linear voltage regulator (HT7333) to take it down from 5v to 3.3v.

A relay module will be controlled by one of the ESP-01 GPIOs, another pin will be used to take the pulse and add time to the timer.

Want to add TM1637 (4 digit 7-segment display) to show time countdown.

Any collaboration would be really welcomed and appreciated.