STC15W408AS UNO development board
Based on STC15W408AS microcontroller design, all pins are lead out. The first version uses CH340C to convert to serial port, and the second version uses CH340G. It is compatible with the previous version, supports automatic download, uses USB 5V power supply, and has 3.3V and 5V external power supply pins on the board. Each IO pin leads to a double row of pins or jacks, you can choose the type according to your needs.
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