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Holybro Pixhawk 5X
by Holybro
Community
Closed Hardware
ArduPilot notes integrated Ethernet hardware is present but disabled on the STM32F7 platform firmware.
Key Specifications
Mounting Pattern
Cube Carrier Board
Connectivity
8 UARTs ā¢ 2 IĀ²C ā¢ 2 CAN
Power
4.75ā6 V ā¢ Power Module
Onboard Sensors
3Ć IMU ā¢ 2Ć Barometer ā¢ 1Ć Magnetometer
Firmware Support
Detailed Specifications
Core Specifications
Quick reference for the primary hardware capabilities.
| MCU | Mounting | Cube Carrier Board | |
| Power | 4.75ā6 V ā¢ Power Module | I/O Overview | 8 UARTs ā¢ 2 IĀ²C ā¢ 2 CAN |
| PWM & Storage | 16 PWM outputs ā¢ no microSD slot | Sensors | 3Ć IMU ā¢ 2Ć Barometer ā¢ 1Ć Magnetometer |
Hardware Overview
Core MCU, mounting, and mechanical data.
Base hardware specification
Default
| MCU | Mounting | Cube Carrier Board | |
| Dimensions | 31.8 Ć 38.8 Ć 14.6 mm | Weight | 23g |
Power Supply
Input rails, regulators, and redundancy.
Voltage ā
Inputs 4
Redundancy Redundant
Power Inputs
POWER1 Power Module
Connector:
6-pin power monitor
Voltage:
4.75ā6 V
POWER2 Power Module
Connector:
6-pin power monitor
Voltage:
4.75ā6 V
USB USB
Connector:
Micro-USB
Voltage:
4.75ā5.25 V
SERVO_RAIL Servo Rail
Voltage:
0ā36 V
High-voltage tolerant servo rail passthrough
| Input Voltage | ā | Redundancy | ā Yes |
Dual SMBus power ports with high-voltage tolerant servo rail and optional USB power.
Connectivity & I/O
Port availability, buses, and expansion options.
| UARTs | 8 | CAN Bus | 2 |
| PWM Outputs | 16 | SD Card | ā No |
| Ethernet | ā Yes | ||
Peripheral Ports
| Port | Type | Default Function | Voltage / Level | Connector | Notes |
|---|---|---|---|---|---|
| TELEM1 | UART | Primary MAVLink telemetry | 3.3 V signal / 5 V @ 1.5 A peripheral power | JST-GH 6-pin | DMA-enabled serial port with hardware flow control and highest current 5 V rail. |
| TELEM2 | UART | Secondary telemetry link | 3.3 V signal / 5 V supply | JST-GH 6-pin | Full RTS/CTS UART suited to long-range radios or RTK corrections. |
| TELEM3 | UART | Configurable serial payload bus | 3.3 V signal / 5 V supply | JST-GH 6-pin | UART2 port typically reassigned to scripting engines, ESC telemetry, or serial RC receivers. |
| USER UART4 | UART | Auxiliary UART for payloads or RC | 3.3 V signal | JST-GH 6-pin | UART4 header with shared GPIO for RSSI/FPort wiring. |
| GPS1 | GPS | Primary GPS/compass/safety harness | 3.3 V signal / 5 V supply | JST-GH 10-pin | Includes safety switch, buzzer, and I2C compass wiring. |
| GPS2 | GPS | Secondary GPS | 3.3 V signal / 5 V supply | JST-GH 6-pin | Provides redundant navigation receiver interface. |
| CAN1 | CAN | DroneCAN peripheral bus | Differential CAN / 5 V supply | JST-GH 4-pin | Powers smart modules such as ESCs or GPS with CAN-FD support. |
| CAN2 | CAN | Redundant CAN network | Differential CAN / 5 V supply | JST-GH 4-pin | Enables second CAN segment or ESC daisy-chain. |
| I2C1 | I2C | Auxiliary sensor bus | 3.3 V | JST-GH 4-pin | Shared with GPS harness for magnetometers or digital peripherals. |
| I2C2 | I2C | External I2C expansion | 3.3 V | JST-GH 4-pin | Dedicated side-panel connector for airspeed sensors or rangefinders. |
| RCIN | RC | Primary receiver input | 3.3 V signal / 5 V supply | JST-GH 6-pin | Supports PPM, SBUS, DSM, FPort, and CRSF protocols with dedicated RSSI pin. |
| S.BUS OUT / RSSI | RC | S.Bus passthrough and analog RSSI | 3.3 V signal | JST-GH 3-pin | Provides redundant receiver output and RSSI monitoring for ground stations. |
| FMU PWM OUT (1-8) | PWM | Primary motor outputs | Servo rail (0-36 V tolerant) | Servo rail bank A | FMU-controlled outputs supporting DShot on all groups except 7-8. |
| IO PWM OUT (9-16) | PWM | Auxiliary PWM outputs | Servo rail (0-36 V tolerant) | Servo rail bank B | IOMCU-managed outputs for secondary actuators or camera triggers. |
| POWER1 | Power | Primary power module input | 4.75-6.0 V | 6-pin power monitor | SMBus-enabled connector for current/voltage telemetry and redundant 5 V supply. |
| POWER2 | Power | Secondary power module input | 4.75-6.0 V | 6-pin power monitor | Backup SMBus power input for redundant supply architectures. |
| SERVO RAIL | Power | PWM servo supply | 0-36 V tolerant | Servo rail bus | High-voltage tolerant servo power isolated from FMU electronics. |
| Micro-USB | USB | Console and firmware updates | 5 V | Micro-USB | Provides SERIAL0 console, bootloader, and SLCAN access. |
| Ethernet | Ethernet | 100 Mbps companion link | 3.3 V logic | RJ45 breakout | Disabled in STM32F7 firmware but fully routed to the RJ45 breakout board. |
| FMU Debug | Debug | SWD + system console | 3.3 V | JST-GH 6-pin | Provides SWDIO/SWCLK and UART console for firmware development. |
Onboard Sensors
IMU, barometer, and magnetometer load-outs per revision.
| IMU | |||
| Barometer | |||
| Magnetometer | |||
Additional Features
Value-add capabilities bundled with the controller.
- ā Integrated Ethernet interface (not enabled on F7 firmware)
- ā Triple-redundant IMUs with vibration isolation and heating
- ā Two CAN buses with dedicated power monitor inputs
Known Issues & Advisories
No documented issues for Base Hardware
Sensor advisories and controller errata for this revision will appear here once reported.
Documentation & Vendor Resources
Contributors: Jairus
Last updated:
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