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Welcome to the wiki!

Please read through this page and other sub-pages before you start asking questions on the forum.

Download

Installation / Setup

  • Download the sdcard image and unzip it

  • Write it onto two (minimum 2GB) SD cards. One for the AirPi and another for the GroundPi. See instructions on this page on how to write .img files on SD cards. Pi with the camera connected will act as AirPi, without camera will act as GroundPi.

  • Insert each SD card into each Raspberry Pi and boot them up.

Configuration

  • Do not change anything for first tests. The system will start the first time on a frequency in the 2.4GHz band

  • If everything runs as intended, put each SD Card in Windows computer or anything that has a text editor (Tablet, Smartphone),and edit wifibroadcast-1.txt configuration options. Other options are available osdconfig.txt and apconfig.txt. NOTE:it is good practice to have all settings identical in both sd cards

  • See under configuration options and the "Setup Sections" in the sidebar for more info

Features

(applicable to the latest release)

  • Supports Pi A+, Pi1B+, Pi2B, Pi3B (Pi3B+ not at the moment), Pi Zero, Pi Zero W, Odroid-W, Pi V1 and V2 cam (NOTE: GroupdPi needs to be atleast a Pi2)
  • Maximum possible resolutions (depending on cam used): 1280x720p 60fps 1296x972p 42fps 1640x922p 40fps 1920x1080p 30fps
  • Maximum possible video bitrate about 12Mbit
  • Latency ~125ms with 720p 48fps default settings, minimum possible latency roughly around 110ms
  • Support for 2.3/2.4/2.5Ghz bands and 5.2Ghz to 5.8Ghz bands
  • 2.4Ghz on 3dbi omni antennas: About 1-1.5km range with ~70mw wifi sticks, about 2-3km with ~300mW high-power cards (with default settings, about 50% higher range is possible with lower bitrate "longrange mode")
  • 5Ghz on 3dbi omni antennas: ~250m range with 25mW wifi sticks, about 1km range with ~300mW high-power cards
  • Configuration can be done from Windows, no Linux knowledge required
  • Supports different configuration profiles selectable on the field via jumpers or DIP switches
  • Forwarding of video stream and telemetry data to 2nd display via: USB Tethering, Wifi Hotspot, Ethernet, Wifibroadcast relay mode
  • Bi-directional mavlink telemetry support (uplink not 100% compatible with all FCs yet)
  • Support for video and telemetry inside Tower App, QGroundcontrol, Mission Planner
  • Fully dynamic and automatic detection of 2nd display, just plug it in or connect via Hotspot and it'll work
  • 2 wifi sticks transmit diversity on two different frequencies for bulletproof videolink
  • 3 wifi sticks receive diversity support for Atheros, 5 wifi sticks receive diversity support for Ralink (or 2x Atheros and 2x Ralink)
  • Integrated high resolution fully customizeable OSD with support for Mavlink, Frsky, LTM, Smartport telemetry
  • .AVI Ground recording, PNG screenshots and telemetry data automatically saved to USB stick
  • Automatic graphing of RSSI, packetloss, video bitrate and other data
  • Quick startup, about 10 seconds until video is shown
  • No issues as with standard wifi, no disconnection, video freeze etc, video will quickly recover
  • Live and responsive RSSI display with defective blocks and packetloss display
  • Handling similar to analog gear, just switch on and fly
  • Smooth and stutter-free video (thanks, mmormota)
  • Video reception is very stable even in difficult multipathing environments, no constant glitching as with analog
  • OSD overlay rendered on the receiver will stay clear and functional even if video is too bad to fly
  • SD card reliability and general robustness tweaks (read-only filesystem, syslogging to SD disabled, etc.)
  • Debug logs and screenshot will be saved to sdcard in case of errors
  • Low-latency/high update-rate RC over wifibroadcast via Joystick (Atheros only)

Home

General

Hardware Setup

Software Setup

RC Control

Ground Stations

Expert Settings

Extensions / AddOns

  • HDMI-in cards
  • WebCams
  • Video Switcher
  • Thermal (FLIR, Seek)
  • 360° cameras

Community-HUB

Developer's Corner


Links

Known Issues

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