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    6. Flash T-Beam

    How to Flash TTGO T-Beam (ESP32)

    Program your T-Beam for OGN/FLARM transmission

    The TTGO T-Beam is an ESP32-based development board with LoRa radio and GPS. When flashed with OGN-Tracker firmware, it enables your Stratux to transmit your position to other aircraft via OGN, FLARM, FANET, or PAW protocols.

    What You Need

    • TTGO T-Beam v1.1 or v1.2 (with SX1276 for 868MHz)
    • USB-C cable (data capable, not charge-only)
    • Computer with Chrome browser (for Web Flasher)
    • 18650 battery (optional but recommended)
    Recommended

    OGN-Tracker

    Official OGN firmware with FLARM, OGN, FANET, and PAW support.

    OGN Wiki
    Alternative

    SoftRF

    Alternative firmware with additional protocol support.

    GitHub
    1

    Install USB Drivers

    Download and install the CP2104 USB driver for your operating system. Windows may need manual driver installation. macOS and Linux usually work automatically.

    2

    Connect T-Beam to Computer

    Connect your T-Beam to your computer using a USB-C data cable. The device should be recognized and a new COM port should appear. Note the port number (e.g., COM3 on Windows, /dev/ttyUSB0 on Linux).

    3

    Open Web Flasher

    Open Chrome and navigate to the OGN-Tracker web flasher at esp.huhn.me or the official OGN flasher. Web Serial requires Chrome, Edge, or Opera browser.

    4

    Select Firmware

    Download the latest OGN-Tracker firmware binary for T-Beam from the OGN wiki. Select the correct version for your T-Beam hardware (v1.1 or v1.2) and frequency (868MHz for Europe).

    5

    Flash the Firmware

    Click 'Connect' in the web flasher and select your T-Beam's COM port. Upload the firmware binary and click 'Flash'. The process takes about 1-2 minutes. Do not disconnect during flashing.

    6

    Configure the Device

    After flashing, the T-Beam creates a WiFi access point for configuration. Connect to it and open 192.168.4.1 in your browser. Set your aircraft type, address, and transmission protocol (OGN recommended).

    7

    Connect to Stratux

    Connect the T-Beam to your Stratux via USB. Stratux EU firmware automatically detects OGN-Tracker devices and integrates them for position transmission.

    Important Notes

    • Ensure you have the SX1276 variant for 868MHz European operation
    • Register your OGN device ID at glidernet.org for tracking
    • FLARM transmission requires proper licensing in some countries
    • The 18650 battery provides backup during power interruptions

    Next Steps

    Add Pressure SensorSubmit to OGN
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