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This is the first cheapest version of CH55x series. CH55x is the 8bit C51 MCU + USB function board. From WCH company. All series CH551 CH552 CH554 CH559 will be avaialble.
Very cheap CH551 IC raw cost only 1.5RMB/$0.25, we will also sell it.
Github collect most sample code, but comments in chinese.
- USB Stick board size
- On board power led
- On board GPIO testing led P3.0
- 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.