Wireless RF External Expansion Interface

1 PB13 low power slow serial leu0_tx baud rate 9600

2 PB14 low power slow serial leu0_rx baud rate 9600

3 PD4 ADC0_CH4 Sampling Channel 4 or GPIO

4 PD5 ADC0_CH5 sampling Channel 5 or Gpio

5 PD6 ADC0_CH6 Sampling channel 6 or Gpio

6 PD7 Adc0_ch7 Sampling Channel 7 or Gpio

7 PE10 non-low-power high-speed serial port TX baud rate 115200

8 PE11 non-low-power high-speed serial port RX baud rate 115200

9 GND System Ground

GND system to

5V (or battery voltage with RF Board voltage management chip)

5V (or voltage management chip for battery voltage with RF board)

Wireless RF External Expansion Interface