CH341 HDK
SCH and Board Functions
- Power Select - select chip power supply and output either 5V or 3V3
- UART | Other Switch - switch either uart output or any other (IIC SPI Parallel, etc) interface
LEDs:
- Power LED
- RDY LED - serial ready LED
- TNOW LED - serial sending status LED
Side Pin header
- UART
- IIC
- SPI (CS0 CS1)
All the rest pins are lead out on chips side