963a776fa6
* heater: add multi-instance support, refactor parameter handling, remove legacy params file
This change introduces multi-instance heater support to allow independent temperature control for multiple IMUs.
Main changes:
- Add support for multiple heater instances
- Refactor parameter handling to use per-instance parameters
- Remove the legacy parameter file and migrate to the updated parameter structure
This improves scalability and makes heater configuration consistent across setups with multiple sensors.
* Refactor heater configuration across multiple boards
- Updated heater GPIO definitions to introduce a new naming convention for better clarity and consistency.
- Replaced `GPIO_HEATER_OUTPUT` with `GPIO_HEATER1_OUTPUT` and adjusted the corresponding output enable macros.
- Changed parameter names from `SENS_TEMP_ID` to `HEATER1_IMU_ID` in various board default configurations to reflect the new heater setup.
- Ensured all affected board configurations are updated to maintain functionality with the new heater definitions.
* heater: fix missing HEATER1_OUTPUT_EN control
* heater: fix more missing HEATER1_OUTPUT_EN control
* heater: tidy config, docs, and instance handling
- Remove unused controller period member and use CONTROLLER_PERIOD_DEFAULT
- Improve HEATER${i}_IMU_ID description and instance-related logging/behavior
- Add a guard when HEATER_NUM exceeds HEATER_MAX_INSTANCES
Note: drop intermediate/reverted change around the 'celsius' spelling.
* heater: refactor constructor to remove unused parameter and add instance name function
- Remove unused ModuleParams argument from Heater constructor
- Add heater_instance_name() helper to provide per-instance work queue task names
- Use instance-specific parameter lookup (HEATER{n}_*) during initialization
Use heater_instance_name() to label each instance (heater_1/2/3) in work queue.
Also drop unused ModuleParams argument from constructor and keep per-instance
parameter handle lookup in initialization.
* format
* board: update GPIO configuration for multiple heater instances, add HEATER_NUM for boards using PX4IO
* heater: update heater control to use HEATER1_OUTPUT_EN when using PX4IO for consistency
* heater: add a TODO for px4io multi-instance
* heater: update missing GPIO_HEATER1_OUTPUT in sky-drones
* heater: fix multiple newlines at EOF (resolve CI check failure)
* heater: switch to PublicationMulti for heater_status and log multi-instance
- Changed _heater_status_pub from Publication to PublicationMulti to support independent per-instance publications without overwriting.
- Updated logged_topics.cpp to use add_optional_topic_multi("heater_status")
This fixes the issue where multiple heater instances were writing to the same heater_status topic, causing data overwriting and incorrect update rates in logs.
---------
Co-authored-by: Jacob Dahl <dahl.jakejacob@gmail.com>
Co-authored-by: Jacob Dahl <37091262+dakejahl@users.noreply.github.com>
The autopilot stack the industry builds on.
About
PX4 is an open-source autopilot stack for drones and unmanned vehicles. It supports multirotors, fixed-wing, VTOL, rovers, and many more experimental platforms from racing quads to industrial survey aircraft. It runs on NuttX, Linux, and macOS. Licensed under BSD 3-Clause.
Why PX4
Modular architecture. PX4 is built around uORB, a DDS-compatible publish/subscribe middleware. Modules are fully parallelized and thread safe. You can build custom configurations and trim what you don't need.
Wide hardware support. PX4 runs on a wide range of autopilot boards and supports an extensive set of sensors, telemetry radios, and actuators through the Pixhawk ecosystem.
Developer friendly. First-class support for MAVLink and DDS / ROS 2 integration. Comprehensive SITL simulation, hardware-in-the-loop testing, and log analysis tools. An active developer community on Discord and the weekly dev call.
Vendor neutral governance. PX4 is hosted under the Dronecode Foundation, part of the Linux Foundation. Business-friendly BSD-3 license. No single vendor controls the roadmap.
Supported Vehicles
 Multicopter |
 Fixed Wing |
 VTOL |
 Rover |
…and many more: helicopters, autogyros, airships, submarines, boats, and other experimental platforms. These frames have basic support but are not part of the regular flight-test program. See the full airframe reference.
Quick Start
git clone https://github.com/PX4/PX4-Autopilot.git --recursive
cd PX4-Autopilot
make px4_sitl
Note
See the Development Guide for toolchain setup and build options.
Documentation & Resources
| Resource | Description |
|---|---|
| User Guide | Build, configure, and fly with PX4 |
| Developer Guide | Modify the flight stack, add peripherals, port to new hardware |
| Airframe Reference | Full list of supported frames |
| Autopilot Hardware | Compatible flight controllers |
| Release Notes | What's new in each release |
| Contribution Guide | How to contribute to PX4 |
Community
- Weekly Dev Call — open to all developers (Dronecode calendar)
- Discord — Join the Dronecode server
- Discussion Forum — PX4 Discuss
- Maintainers — see
MAINTAINERS.md - Contributor Stats — LFX Insights
Contributing
We welcome contributions of all kinds — bug reports, documentation, new features, and code reviews. Please read the Contribution Guide to get started.
Governance
The PX4 Autopilot project is hosted by the Dronecode Foundation, a Linux Foundation Collaborative Project. Dronecode holds all PX4 trademarks and serves as the project's legal guardian, ensuring vendor-neutral stewardship — no single company owns the name or controls the roadmap. The source code is licensed under the BSD 3-Clause license, so you are free to use, modify, and distribute it in your own projects.
