Semiconductor cooling control board based on LCSC CW32 development board

 
This is a semiconductor cooling control board based on the LCSC CW32 development board.
Although the temperature has dropped today.
[Main Control]
The control board uses the LCSC CW32 development board as the main controller.
 
[Input Power]
The power supply can be 5V or 12V; exceeding 18V is not recommended as it may damage the step-down chip.
There are three input power terminals.
With 5V, generally 1-2 terminals are sufficient.
With 12V, the current may be insufficient, so 2-3 terminals can be used.
 
[Output Power]
There are a total of 5 controllable output power terminals: 1 USB and 4 XH terminals.
Two output power terminals are for the cooling fan.
One output power terminal is for the semiconductor cooling chip.
One output power terminal is for the water pump. (Selected)
USB Output (Selected)
 
[Button Interaction]
Three buttons are used for control.
Original version: key1 turns on cooling mode, key2 turns off, key3 cancels.
Current version: key1 turns on cooling mode; pressing it again turns off mode (LED5 starts flashing); pressing it again cancels off mode and resumes cooling.
After entering shutdown mode, LED5 starts flashing, the cooling chip shuts off, and the cooling fan shuts off after 10 seconds.
 
Demonstration video:
[Cooling Control Board Based on LCSC CW32 Development Board] This project is open-sourced on the LCSC Open Source Hardware Platform_bilibili_