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What You Need

Before starting your OnSpeed installation, make sure you have the following.

Required Components

  • OnSpeed Gen3 controller board — assembled PCB with all sensors and ESP32-S3
  • Pneumatic tubing — to connect pitot, AOA, and static ports (¼" or 3/16" depending on your fittings)
  • AOA pressure probe — mounted in the wing or fuselage to sense angle of attack differential pressure
  • Power wiring — 12–28V from your aircraft bus, fused or through a circuit breaker (the system draws minimal current)
  • Audio wiring — to connect to your audio panel or headset (see Audio Wiring for options)
  • microSD card — any standard microSD card for data logging (FAT32 formatted)
  • EFIS with serial output — Dynon SkyView/HDX, Garmin G5/G3X, or MGL iEFIS. Provides IAS, OAT, and attitude data for better performance. See EFIS Integration.
  • Flap position sensor — potentiometer mechanically linked to your flap handle, or jumper wires for discrete flap positions. Required for multi-flap calibration.
  • Laptop or phone with WiFi — for configuration, calibration, and log download via the web interface.

Optional

  • DS18B20 OAT sensor — if you don't have an EFIS providing outside air temperature. Needed for density altitude corrections in standalone mode.
  • NeoPixel LED strip — for a visual AOA indexer (colored LED bar on the glare shield)
  • M5Stack display — for an external cockpit display
  • Boom probe — a reference AOA probe for testing or calibration validation

Tools for Installation

  • Wire strippers and crimpers (for Molex or D-sub connectors)
  • Soldering iron (for audio connections and any custom wiring)
  • Heat shrink tubing
  • Zip ties and adel clamps for securing tubing and wires
  • Multimeter (for verifying connections)
  • Level (for sensor calibration — the aircraft must be level on the ground)

Skills

You should be comfortable with:

  • Basic aircraft electrical wiring (12V DC, circuit breakers, grounds)
  • Connecting pneumatic tubing (pitot/static plumbing)
  • Using a web browser for configuration
  • Flying slow-flight calibration sweeps (for the calibration wizard)

No programming or special software knowledge is needed for installation and operation. Firmware flashing is done via a web browser over WiFi, or with a simple USB tool.