Introduction to OpenHD
OpenHD is a suite of software designed for long-range video transmission, telemetry, and RC control. While we originally designed it with hobbyist drones in mind, it can be adapted to a wide range of other applications as well.
You are viewing the documentation for the latest development version. Use the version dropdown to switch between different OpenHD versions.
What OpenHD Can Do
Our suite can transmit:
- High definition video (with multiple cameras)
- Two-way UAV telemetry
- Two-way OpenHD telemetry (General settings, range-adjustments, channel-changes, wifi-modulation,...)
- RC control signals
All of these signals can be sent over a single transmission channel and telemetry is using MAVlink to ensure high compatibility and stability.
OpenHD digital fpv world record 55km
How does the OpenHD link (wifibroadcast) work
OpenHD employs readily available Wi-Fi adapters, although not in the standard manner commonly associated with everyday Wi-Fi usage. To ensure low-latency and long-distance transmissions, we configure these adapters to function akin to analog video transmission hardware. This innovative protocol, inspired by befinitiv, has been reimplemented by OpenHD for optimized performance.
The configuration empowers OpenHD to transmit high-quality video and other signals across significant distances while maintaining minimal latency.
QOpenHD App
We offer a multi-platform app with a customizable on-screen display (OSD) for live video. The app is designed to work seamlessly with our suite, and allows you to easily view and control your OpenHD transmission.
Support and Further Reading
If you need help or want to learn more, we offer several resources:
- Public Telegram and Discord groups for lots of immediate interaction
- Please document problems on Github
- First intro to Open.HD from CurryKitten on Youtube
Support for OpenHD 2.0.x is no longer provided.
If you have a problem with a specific version of OpenHD, please check the name of the image you used to burn your SD cards and provide it to us in Telegram so we can help narrow down the cause and find a solution.