- 25MHZ high speed crystal & 32.768Khz 6PF low speed crystal
- Flash pads have been reserved to provide USBDisk&&FATFFS routines
- The jumper cap does not need to be installed and can be used directly. BOOT0 internal 10K resistor pull down
- The breathing light &&USBCDC test program has been programmed in the factory.
- Provides available MicroPython firmware, see link for configuration files does not provide technical answers!
- If the jumper cap cannot be installed, please adjust the direction of the jumper cap. Because the jump cap is wide one side and narrow on the other.
- The board with version V1.3 has 3 buttons, reset button, BOOT0 button and user button.