The development board HKF103CBT6 (STM32F103C8T6) is used as a JLINK OB downloader. The one with A in HK is mainly out of stock. . . Just make do with it
The development board has AT24C02 and W25Q128 onboard, which can learn IIC and SPI.
External OLED screen (SPI interface), Bluetooth HC-05, single bus DS18B20. All unused IO ports are brought out.
A development board for practicing.
The video will no longer be uploaded. There is a picture of the actual thing (18b20 is put upside down, not my fault!!!). All functions are tested normally. The source code will not be posted. I am a novice. I am too good at it. The big guys can find it online. , all ready-made. Just transplant it.
The project file has been uploaded and can be downloaded and studied. The test window above is a screenshot of the serial port debugging assistant.
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