MGL iEFIS / Odyssey

MGL Avionics iEFIS and Odyssey systems use a binary serial protocol (iLink) to communicate with OnSpeed.

Serial Setup

• Baud rate: 115200
• Protocol: Binary (iLink messages)
• EFIS Type setting: MGL

Wiring

Connect the MGL serial TX output to OnSpeed RX (GPIO 11).

Protocol Details

MGL uses a custom binary protocol with two message types:

Message	Size	Contents
Message 1 (Flight Data)	36 bytes	Altitude, speed, AOA, VSI, pressure, OAT, time/date, checksums
Message 3 (Attitude/Motion)	36 bytes	Heading, pitch, bank, turn rate, G-forces, angular rates, flags

Each message includes a CRC checksum for data integrity.

Data Available

The MGL provides:

• IAS
• Pitch and bank angles
• Heading
• Pressure altitude, VSI
• G-loads and angular rates
• OAT
• Time/date

Configuration

1. Configure your MGL EFIS to output iLink data on a serial port at 115200 baud
2. Set EFIS Type to MGL in the OnSpeed web interface
3. Save and reboot
4. Verify with the SENSORS console command