This board uses the same firmware as the Naze32 board.

Sensors

MPU6500 via SPI interface.

Ports

6 x 3pin ESC / Servo outputs 1 x 8pin JST connector (PPM/PWM/UART2) 1 x 4pin JST connector (UART3/I2C)

The 10 pin RC I/O connector has the following pinouts when used in RX_PPM/RX_SERIAL mode.

From right to left when looking at the socket from the edge of the board.

Pin	Function	Notes
1	Ground
2	+5V
3	RX_PPM	Enable `feature RX_PPM`
4	RSSI_ADC	Enable `feature RSSI_ADC`. Connect to the output of a PWM-RSSI conditioner, 0v-3.3v input
5	USART2 TX
6	USART2 RX	Built-in inverter
7	LED_STRIP	Enable `feature LED_STRIP`
8	unused

When SOFTSERIAL is enabled, LED_STRIP and CURRENT_METER are unavailable, but one SoftSerial port is made available to use instead.

Pin	Function	Notes
7	SOFTSERIAL1 RX	Enable `feature SOFTSERIAL`
8	SOFTSERIAL1 TX

Value	Identifier	RX	TX	Notes
1	USART1	RX / PA10	TX / PA9 / TELEM	TELEM output is always inverted (for FrSky). Internally connected to USB port via CP2102 IC
2	USART2	RC4 / PA3	RC3 / PA2
3	USART3	F3 / PB11	F2 / PB10	Flex port is configured as UART3 when port is configured
4	SOFTSERIAL1	RC5 / PA6	RC6 / PA7