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- USB Stick board size
- Same footprint and compatible pins for CH552 or CH554, SSOP20 package.
- On board power led
- On board GPIO testing led P1.4
- On board power regulator 3.3V, jumper select 3.3V or 5V power chip.
- No need extra 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: