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CH55x is the 8bit enhanced C51 MCU + USB function board, design from WCH company. CH551 is the cheapest entry version of CH55x series.
- 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.
All documentation please find at CH55X wiki page, or customer github.
WCH CH55x Series: