Horizon31 PixC4-Jetson


The PixC4-Jetson is a professional-quality and NDAA Compliant Flight Management Unit (FMU), powerful single board computer and peripheral support system (USB, MIPI, Ethernet, M.2 slot, etc.) in a small form factor, designed to be integrated into end-user platforms. The term “PixC4” is derived from the Pixhawk, on which the FMU design is based (FMUv5) and C4, representing Command, Control, Compute and Communication.

Available as a turnkey solution including software pre-flashed on the Nvidia Jetson companion computer to enable the following features:

  • UDP Unicast/Multicast/Broadcast Telemetry (MAVLink)

  • LTE connection management with Layer-2 peer to peer VPN

  • Powerful multi-endpoint video encoding pipelines with example/open-source scripts for customization

  • ATAK Integration

  • Web interface for configuration and remote terminal access

  • Supports multiple simultaneous communication pathways such as LOS, LTE and Satcom with advanced stale command rejection and message deduplication

  • Scalable and secure cloud connectivity to Horizon31’s US servers and optional access to their cloud GCS and low-latency webRTC video distribution system (https://gcs.horizon31.com)



  • STM32H743 Processor with STM32F103 IO Processor (FMUv5 design)

  • Integrated Nvidia Jetson companion computer, compatible with Nvidia Jetson Nano, Xavier NX or TX2 NX

  • Ethernet switch (3 port)

  • USB 2.0 Hub (7 port)

  • Cellular/LTE Modem support (M.2. Key B slot)

  • Support for RockBlock 9603 Iridium Modem

  • F-RAM Cypress MF25V02A-DG 256-Kbit nonvolatile memory (Flash memory that performs as fast as RAM)

  • Invensense ICM-20602 (x2) 3-axis accelerometer/gyroscope

  • Invensense ICM-42688 3-axis accelerometer/gyroscope/magnetometer

  • MS5611 barometer

  • RM3100 Compass

  • Micro SD Card for FMU

  • Nano SIM card slot for M.2 cellular Modem

Board to board connector with the following IO:

  • Spektrum DSM / DSM2 / DSM-X® Satellite compatible input and binding (FMU)

  • Futaba S.BUS® & S.BUS2® compatible input (FMU)

  • 1x Telemetry port output (FMU)

  • PPM sum input signal (FMU)

  • 14x PWM outputs (6 DShot capable) (FMU)

  • 1x RSSI (PWM or voltage) input (FMU)

  • 2x I2C (FMU)

  • 1x UART (FMU)

  • 1x SPI (FMU)

  • 2x CAN (FMU)

  • Voltage/Current Sense (FMU)

  • Safety Switch (FMU)

  • Buzzer Out (FMU)

  • Jetson UART/Console (Jetson)

  • MIPI/CSI (Jetson)

  • UART (Jetson)

  • I2S (Jetson)

  • I2C x2 (Jetson)

  • GPIO x5 (Jetson)

  • Ethernet (x2) 100 Mbps (Jetson)

  • USB 2.0 (x4) (Jetson)

  • Power Input (5V, ~2-5A depending on compute module used). Accepts redundant/separate supplies for FMU and Jetson.

Other IO:

  • JTAG for FMU and IO

  • USB 3.0 SS Type C (Jetson)

  • USB 2.0 Type C (FMU)

  • Jetson Fan Control

  • M.2 Key B Connector

  • FMU and IO RGB LED, Ethernet status LEDs, Power LEDs

Weight and Dimensions

  • Weight: 33g (without heatsink)

  • Width: 59mm

  • Length: 83mm

More Information

Pinouts, wiring diagrams, setup information and more documentation is available here:

Horizon31 PixC4-Jetson

Where to Buy

Horizon31 Made in the USA