Pixhawk 248 Firmware May 2026

Pixhawk 2.4.8 (often referred to as a clone or version of the original Pixhawk 1) is a widely used open-source 32-bit flight controller. It is fully compatible with both major open-source flight stacks: Core Hardware Specifications : Features a primary 32-bit STM32F427 Cortex-M4 (168 MHz/256 KB RAM/2 MB Flash) and a secondary 32-bit failsafe co-processor. : Integrated suite including the (accel/gyro), (accel/mag), and barometer. : Supports multiple UART, I2C, SPI, CAN, and PWM outputs. 5.imimg.com Firmware Options ArduPilot (Copter, Plane, Rover)

Highly customizable and widely used for autonomous missions. Typically flashed using Mission Planner Users should generally select the

firmware target depending on the specific board's flash memory capacity (2.4.8 usually handles fmuv3). PX4 Autopilot

Optimized for research and advanced computer vision integration. Typically flashed using QGroundControl RadioLink-Official Website Flash/Update Process : Plug the Pixhawk into your PC via Micro-USB. Select Station Mission Planner QGroundControl Identify Target pixhawk 248 firmware

: Ensure you choose the correct firmware version. For most 2.4.8 boards, the

target is required to access all features; older or lower-memory clones may require

: After flashing, a full sensor and radio calibration is mandatory before flight. RadioLink-Official Website Technical Documentation & Papers PIXHAWK Upgrade Firmware - RadioLink Pixhawk 2

Recommended telemetry/parameter defaults (examples)

• Main loop rate: 1 kHz
• IMU sample rate: 1 kHz
• EKF update: 200 Hz
• Default RC deadband: 5%
• Failsafe RTL altitude: 30 m

If you want, I can:

• Generate a one-page spec sheet for release documentation.
• Produce a YAML parameter set for QGroundControl.
• Outline a test plan (HIL/SITL/unit tests) for this firmware.

(Invoking related search suggestions)

However, you are likely referring to one of two things: Main loop rate: 1 kHz IMU sample rate:

1. PX4 Firmware version 1.2.48 (or a similar build number containing "248" as a sub-version).
2. ArduPilot firmware compiled for a specific Pixhawk 2.4.8 hardware board (a very common clone version of the Pixhawk 1).

Below is a comprehensive guide covering both interpretations so you can identify exactly what you need.

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Attitude PID (Basic)

| Parameter | Recommended Value (Racer) | Stock Value | |-----------|--------------------------|--------------| | PSC_ACC_P | 1.2 | 0.8 | | PSC_ACC_I | 0.8 | 0.5 | | ATC_RAT_RLL_P | 0.22 | 0.12 | | ATC_RAT_PIT_P | 0.22 | 0.12 | | ATC_RAT_YAW_P | 0.25 | 0.20 |

The "Full Story" of Its Demise

• February 2014 – ArduPilot dev team announced that 2.4.8 would be the last release supporting APM hardware (due to memory limits).
• March 2014 – ArduCopter 3.0 released for Pixhawk only.
• Late 2014 – Main dev focus shifted to EKF (from Paul Riseborough and others).
• 2015 – Mission Planner and other GCS started warning users that 2.4.8 was "legacy" and no longer supported for new features.
• Today – 2.4.8 is obsolete for new builds, but some legacy drones still fly it. It lacks:
  • DroneCAN/UAVCAN support
  • Modern GPS (RTK, M8N glonass handling)
  • Optical flow / lidar integration
  • Terrain following for fixed-wing

2. Racing Drone Tuning

Racers need a fast control loop (400Hz) and minimal filtering latency. The 3.6.x branch is known for its raw, unfiltered attitude response compared to the more safety-laden 4.x branches. Many champion pilots swear by "248-style" PIDs.