Description
Everyone in FPV is stuck on the same triangle: range, image quality, latency — hard to get all three. Analog transmission is low-latency but blurry and prone to interference; DJI’s digital system is crisp but a closed ecosystem you cannot really tinker with.
OpenHD offers a third path: ordinary Wi-Fi hardware running a purpose-built broadcast scheme (wifibroadcast) that skips the usual Wi-Fi connection handshake for one-way broadcasting, optimised for low-latency, long-range digital transmission — the project cites 50+ km with well-tuned setups. It is a fully open-source digital FPV system.
Beyond HD video, it carries telemetry, audio and RC control over the same link (MAVLink), with the QOpenHD ground station showing the feed and an OSD (flight-data overlay) whose layout you can customise. It runs on platforms like the Raspberry Pi, with compatibility lists for cameras and Wi-Fi adapters.
This is not a plug-and-play product but an open-source scheme for hardware tinkerers: assemble your own air and ground units, flash the image, tune the parameters. GPL-3.0, 2.6k stars — worth a look if you like FPV and hardware DIY.
Broadcast digital transmission: Based on wifibroadcast, using ordinary Wi-Fi hardware for one-way broadcast optimised for low latency and long range, free of the usual Wi-Fi connection model.
HD video: Transmits digital HD video, clearly sharper than analog while keeping end-to-end latency low.
One link, many signals: Video, telemetry (MAVLink), audio and RC control travel over the same link, with no extra wiring.
QOpenHD ground station and OSD: The QOpenHD ground side shows the live feed and a customisable on-screen flight-data overlay.
Multiple hardware platforms: Runs on the Raspberry Pi and others, with compatibility lists for cameras and Wi-Fi adapters to build to budget.
Fully open and hackable: Air-side, ground-side software and images are all open source, with parameters, drivers and OSD open to modification for DIY.
OpenHD offers a third path: ordinary Wi-Fi hardware running a purpose-built broadcast scheme (wifibroadcast) that skips the usual Wi-Fi connection handshake for one-way broadcasting, optimised for low-latency, long-range digital transmission — the project cites 50+ km with well-tuned setups. It is a fully open-source digital FPV system.
Beyond HD video, it carries telemetry, audio and RC control over the same link (MAVLink), with the QOpenHD ground station showing the feed and an OSD (flight-data overlay) whose layout you can customise. It runs on platforms like the Raspberry Pi, with compatibility lists for cameras and Wi-Fi adapters.
This is not a plug-and-play product but an open-source scheme for hardware tinkerers: assemble your own air and ground units, flash the image, tune the parameters. GPL-3.0, 2.6k stars — worth a look if you like FPV and hardware DIY.
Features
Broadcast digital transmission: Based on wifibroadcast, using ordinary Wi-Fi hardware for one-way broadcast optimised for low latency and long range, free of the usual Wi-Fi connection model.
HD video: Transmits digital HD video, clearly sharper than analog while keeping end-to-end latency low.
One link, many signals: Video, telemetry (MAVLink), audio and RC control travel over the same link, with no extra wiring.
QOpenHD ground station and OSD: The QOpenHD ground side shows the live feed and a customisable on-screen flight-data overlay.
Multiple hardware platforms: Runs on the Raspberry Pi and others, with compatibility lists for cameras and Wi-Fi adapters to build to budget.
Fully open and hackable: Air-side, ground-side software and images are all open source, with parameters, drivers and OSD open to modification for DIY.
