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First-Time Setup

This is the step-by-step checklist for configuring a newly installed OnSpeed controller. Complete these steps before your first calibration flight.

Prerequisites

  • Hardware installation complete (see Installation Checklist)
  • SD card inserted
  • A device (phone, tablet, laptop) with WiFi
  • The aircraft should be on the ground, level, in zero-wind conditions for sensor calibration

Step 1: Connect to OnSpeed WiFi

  1. Power on the OnSpeed controller
  2. Wait ~10 seconds for the WiFi AP to start (the status LED should be blinking)
  3. On your device, connect to:
    • SSID: OnSpeed
    • Password: angleofattack
  4. Open a browser and go to http://192.168.0.1

Step 2: Set EFIS Type

On the configuration page (/aoaconfig):

  1. Find the EFIS Type setting
  2. Select the EFIS you have connected:
    • ADVANCED — Dynon SkyView / HDX
    • DYNOND10 — Dynon D10 / D100
    • GARMING5 — Garmin G5
    • GARMING3X — Garmin G3X / G3X Touch
    • MGL — MGL iEFIS / Odyssey
    • VN-300 — VectorNav VN-300
    • None — No EFIS (standalone mode)

This must match your wiring

Wrong EFIS type = no data or garbled data. Double-check.

Step 3: Set Box Orientation

The controller needs to know how it's physically mounted. Set two values:

  1. PORTS_ORIENTATION — Which direction do the pressure port fittings face?

    • FORWARD — ports face the nose of the aircraft
    • AFT — ports face the tail
    • LEFT — ports face the left wing
    • RIGHT — ports face the right wing

  2. BOX_TOP_ORIENTATION — Which direction does the top of the PCB/enclosure point?

    • UP — top faces the sky (normal upright)
    • DOWN — top faces the floor (inverted)
    • LEFT — top faces left wing
    • RIGHT — top faces right wing

These two settings tell the firmware how to rotate the IMU axes into the aircraft frame.

Step 4: Set Flap Positions

Configure your aircraft's flap positions. For each flap setting you use:

  1. Set the Degrees value (e.g., 0°, 20°, 40°)
  2. Set the Pot Value — the ADC reading for that flap position

To find pot values, physically set each flap position and read the value from the FLAPS console command or the sensor config page.

See Flap Position Setup for details.

Step 5: Set Aircraft Limits

Configure these aircraft-specific values:

Setting What to Enter Example (RV-4)
Vno Your aircraft's max structural cruising speed (knots) 157
Positive G-limit Maximum positive load factor 4.0
Negative G-limit Maximum negative load factor (enter as negative) -2.0
Best Glide IAS Best glide speed at max gross weight (knots) 87.5
Max Gross Weight Aircraft max gross weight (lbs) 2282
Vfe Max flaps-extended speed (knots) 150

Step 6: Configure Audio

Setting Recommendation
Volume Default 100% (adjust after first flight)
Volume Pot Enabled true if you wired a volume pot, false otherwise
3D Audio true if you have stereo wiring, false for mono
Mute Under IAS 25 knots (silences tones on the ground and during taxi)
Vno Chime Enabled true
Vno Chime Interval 3 seconds
Over-G Warning true

Step 7: Enable/Disable Optional Features

Setting Set to
OAT Sensor Enabled if you wired a DS18B20, Disabled otherwise
Boom Enabled only if you have a boom probe connected
Boom Checksum true (validates boom data integrity)
SD Logging Enabled (you want flight data logged)
Data Source SENSORS (normal operation)

Step 8: Save Configuration

Click Save on the configuration page. The settings are written to the SD card and flash memory.

Step 9: Run Sensor Calibration

With the aircraft level on the ground in zero-wind conditions (covers on pitot/static if possible):

  1. Navigate to the Sensor Config page (/sensorconfig)
  2. Click the Calibrate button (or use the BIAS console command)
  3. The system takes 1000 samples of each pressure sensor to establish zero-bias readings
  4. It also zeros the IMU accelerometer and gyro biases for the current orientation

See Sensor Calibration for details.

Level and still

The aircraft must be level (use a level on the longerons) and stationary during sensor calibration. Any wind on the pitot or AOA ports will give incorrect bias values.

Step 10: Test Audio

Use the AUDIOTEST console command (via USB serial) or trigger it from the web interface. You should hear:

  • Left channel test tone
  • Right channel test tone
  • Various tone types

If you hear nothing, see Troubleshooting — No Audio.

Step 11: Verify EFIS Data (if connected)

  1. Power on your EFIS
  2. Run the SENSORS console command
  3. Look for non-zero EFIS data values (IAS, pitch, roll, OAT)
  4. If all EFIS fields are zero, see Troubleshooting — No EFIS Data

Step 12: Ready for Calibration Flight

Configuration is complete. The next step is flying the Calibration Wizard to establish AOA curves for your aircraft.

Save a backup

After completing first-time setup, download a backup of your configuration from the web interface. See Backup & Restore.