Semiconductor refrigerator temperature controller, the temperature sensor is DS18B20, the temperature control range is between minus 55 degrees Celsius and above zero 128 degrees Celsius. The control power of the temperature control panel is not recommended to exceed 20W. For high-power control, it is recommended to add a solid-state relay transfer.
The compressed package is a KEIL4 project file, and the burning program only requires the ds18b20.hex file.
Demo video https://www.bilibili.com/video/BV1La411n7Bf/?vd_source=f2ecf6d07c56387a85d94b5338693a63
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