6 layers64.2 × 17.3 mm
OpenRX panel rev2.2
OpenDrone-hw/OpenRX
OpenRX open-source ExpressLRS receiver family hub; board sources live in four dedicated hardware repositories.
254 parts489CERN-OHL-S-2.0
Boards using the LR1121IMLTRT
5 boardsBoards in 5 GitHub repositories, designed in KiCad, that use the LR1121IMLTRT by SEMTECH (-108dBm -40℃~+85℃ 1.8V~3.7V 101.5Kbps 13dBm 150MHz~960MHz、1.9GHz~2.1GHz、2.4GHz~2.5GHz 26mA 7.8mA LoRa Power-on reset function、Power-off reset function SPI transceiver QFN-32-EP(5x5) RF Transceiver ICs ROHS). See how each wires it, with its parts, size, README and files; the LR1121IMLTRT’s symbol, footprint and pinout are on its own page.
- 6 layers17 × 15.7 mm
OpenRX Gemini
OpenDrone-hw/OpenRX-Gemini
Open-source dual-radio, dual-band ExpressLRS receiver for Gemini and Xrossband.
86 parts11CERN-OHL-S-2.0 - 6 layers10 × 17.3 mm
OpenRX Mono
OpenDrone-hw/OpenRX-Mono
Open-source dual-band ExpressLRS receiver with one LR1121 radio and one U.FL antenna.
62 parts6CERN-OHL-S-2.0 - 8 layers35 × 35 mm
OpenAIO
tetraethylmethane/NIDAR-RescueSwarm
Three autonomous drones that search a flood zone, find survivors, geotag them, and drop medical kits — with no network, no pilot, and one operator who only presses start.
285 parts1 - 2 layers
OpenRX Duak
yasir-shahzad/OpenRX
Open-source ExpressLRS 4.0 receiver family. Part of the OpenDrone ecosystem.
45 parts