Github collect most sample code, but comments in chinese.
- USB Stick board size
- Same board for CH552 or CH554, SSOP20 package.
- On board power led
- On board GPIO testing led P1.4
- On board power regulator MIC5209, the IC has internal regulator, can power by 3.3/5V both.
- No need programmer, not even USB-TTL tool! To enter into programming mode, use a tweezer, short connect the two pins in the middle of the board, where marked as “DL”
- All lead out pins.
Price for one board only.