2.2.8 Mk3 SD&I2C connector
This connector allows use of SD Card with PlanetCNC SD card adapter, I2C and UART protocol
devices.
DAT0: SD card signal
CMD: SD card signal
CLK: SD card signal
TX: UART signal
I2C CL: I2C signal
I2C DA: I2C signal
GND: Ground
+3.3V: +3.3V supply
GND: Ground
+5V: +5.0V supply
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