NxtPX4v2

STM32H743VIH6, BMI088+BMI088(DUAL), SPL06, 7xUART, 8xPWM, 1xSPI, 5V 2.5A BEC, 12V 2.5A BEC

NxtPX4v2 Flight Controller

A super small but ultra high-performance PX4 flight controller.

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Spec.

Ports

Diagram

Hardware

Firmware

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NxtPX4v2 Flight Controller

NxtPX4v2 flight controller

Spec.

Specifications

MCU: STM32H743VIH6, 480MHz, 2MB Flash
IMU: BMI088+BMI088(DUAL)
Baro: SPL06
MicroSD Card Slot
7x UART
8x PWM
1x I2C
1x SPI
1x SWD
2x ADC (VBAT, Current)
USB Type-C
BEC 5V 2.5A output (for controller, receiver, GPS, optical flow or other devices)
BEC 12V 2.5A output (for video transmitter, camera)

UART Mapping(Ardupilot)

SERIAL0 -> USB
SERIAL1 -> UART2
SERIAL2 -> UART4
SERIAL3 -> UART1 (GPS)
SERIAL4 -> UART3 (DJI-O3)
SERIAL5 -> UART7 (ESC Telemetry)
SERIAL6 -> UART5 (RCIN)
SERIAL7 -> UART8

UART Mapping(PX4)

TELEM1 -> UART2
TELEM2 -> UART4
TELEM3 -> UART7 (ESC Telemetry)
SERIAL4 -> UART8
GPS1 -> UART1
GPS2 -> UART3
Radio Controller -> UART5 (RCIN)

RC Input

The default RC input port supports SBUS and CRSF protocol.

Set SERIAL6_PROTOCOL=23 on Ardupilot or set RC_INPUT_PROTO = Auto on PX4.

VTX Support

The SH1.0-6P connector supports a DJI O3 Air Unit connection. Pin 1 of the connector is 12v so be careful not to connect this to a peripheral requiring 5v.

PWM Output

The NxtPX4v2 supports up to 8 PWM outputs. Channels 1-8 support DShot.

Battery Monitoring

The board has a internal voltage sensor and connections on the ESC connector for an external current sensor input.

Compass

The NxtPX4v2 does not have a built-in compass, but you can attach an external compass using I2C on the SDA and SCL connector.

Physical