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LILYGO® TTGO T-Beam devices

There are several versions of the T-Beam

  • Meshtastic pre-installed
  • ESP32 - Wifi & Bluetooth
  • SX1276 - LoRa Transceiver
  • Frequency options:
    • 433 MHz
    • 868 MHz
    • 915 MHz
    • 923 MHz
  • NEO-6M - GPS receiver
  • SMA antenna connector
  • Power, Program and Reset switches
  • Comes with 0.96 inch OLED display (some soldering required to assemble)

LILYGO® TTGO T-Beam Meshtastic

LILYGO® TTGO T-Beam v1.1 pinmap

Further information on the LILYGO® T-Beam and LoRa devices can be found on LILYGO®'s GitHub page.


All T-beam models have an 18650 size battery holder on the rear of the device. This is designed to the original specification of the 18650, and only fits unprotected flat top 18650 cells. Button top and protected cells are typically longer than 650mm, often approaching 700mm.


0.96 inch OLED display

To attach the screen, connect VCC to 3v3, GND to GND, SCL to pin 22, and SDA to pin 21 as per the below image.

Connecting the OLED screen to a T-Beam