UV sterilizer control panel

The button controller of the ultraviolet sterilizer is broken. Make a new one, the ultraviolet sterilizer control panel.
Change the mechanical timer and multi-light key switch to be controllable by Raspberry Pi, and use optocoupler isolation to control lighting LED lights P1, 2, 3, 4, 7, 8.
A set of optocoupler isolation switches is connected to P6, exhaust fan. The other two sets of optocoupler isolation switches are connected to two ultraviolet lamps.
Ozone will be produced during ultraviolet sterilization and must be ventilated, otherwise a large amount of ozone will remain harmful to the human body.
H10 is connected to the Raspberry Pi, and H3 is a 5V 1A switching power supply that supplies power to the Raspberry Pi. The Raspberry Pi only needs to output IO levels.
Of course, microcontrollers can also be used. The main purpose of using Raspberry Pi is to control it through the Internet, without requiring people to operate it one by one.
GPIO programming method [https://www.zkii.net/tech/arduino/2090.html](https://www.zkii.net/tech/arduino/2090.html)