User manual

USB DEV
Pin # Signal Name
1 +5V_USB
2 USBDM
3 USBDP
4 GND
PWR_JACK
Pin # Signal Name
1 Power Input
2 GND
UEXT
Pin # Signal Name
1 3.3V
2 GND
3 UCA0TXD
4 UCA0RXD
5 UCB1SCL
6 UCB1SDA
7 UCA1SOMI
8 UCA1SIMO
9 UCA1CLK
10 UCA1STE
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