The board MCU uses Qinheng's MCU ch567 microcontroller, which is relatively powerful and supports 2 USB hs master and slave. Regular resources such as uart pwm support sd analysis.
1. This project leads out all the pins, 2. Adds download button, download button and LED light for functional verification. 3. Add an SD card module 4. Two USB channels have also been led out and can be connected to type A and mirco USB 5. Use USB 5v input for power supply.
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