Left
5V DC Power input socket
Reset button
USB for firmware upgrade
SPI 0 / 1
I2C 0 / 1
UART 0 / 1 (console and autopilot telemetry)
TEL (Telemetry) port: TTL 3V3, Baudrate 57600
DBG (Debug) port: TTL 3V3, Baudrate 9600
Front
SPI 1
5V OUT SPI1 SCLK SPI1 MISO SPI1 MOSI SPI1 CS0 GND
I2C 0 / 1
5V OUT I2C1 SCL I2C1 SDA I2C2 SCL I2C2 SDA GND
UART 0 / 1
GND TEL TX TEL RX DBG TX DBG RX 5V OUT
SPI 0
GND SPI0 CS0 SPI0 MOSI SPI0 MISO SPI0 SCLK 5V OUT