LilyGo TTGO T-Beam ESP32 868MHz LoRaWAN NEO-M8N GPS Board

The LilyGo T-Beam is a development board with the ESP32 (Wi-Fi and Bluetooth), the SX1262 LoRa chip for 868 MHz and the u-blox NEO-M8N GPS receiver. On the back there is a holder for an 18650 cell; charging and power management are handled by the AXP2101 chip. The board is often used as a Meshtastic node or GPS tracker. The 18650 cell is not included.

Important: In Switzerland, a maximum of 25 mW (14 dBm) usually applies in the 868 MHz band. The transmit power is set in the program.

Recommended Accessories:

• 868MHz LoRa Meshtastic Antenna Flexible 20cm
• 868MHz LoRa Meshtastic Antenna Flexible 40cm

Features:

• ESP32-D0WDQ6-V3 with Wi-Fi and Bluetooth, 4 MB flash, 8 MB PSRAM
• LoRa chip SX1262, 868 MHz, transmit power up to 20 dBm
• GPS receiver u-blox NEO-M8N
• Holder for an 18650 cell, charging and power management with AXP2101
• Buttons PWR, IO38 and RST
• SPI interface

Application Examples:

• Meshtastic node with GPS
• GPS tracker with LoRa or LoRaWAN
• Mobile battery-powered measuring stations
• Integration into Home Assistant with ESPHome

Documentation:

• ESPHome documentation: SX127x Component
• Hardware T-Beam on GitHub (LilyGo, English)
• LilyGo LoRa Series Beispiele on GitHub (LilyGo, English)
• Schemas on GitHub (LilyGo, English)
• Meshtastic on the T-Beam (meshtastic.org)

Technical Data:

• Manufacturer: LilyGo
• Manufacturer SKU: Q397
• Version: V1.2
• Microcontroller: ESP32-D0WDQ6-V3
• Memory: 4 MB flash, 8 MB PSRAM
• LoRa chip: SX1262
• Frequency: 868 MHz
• Transmit power: up to 20 dBm
• Sensitivity: down to -139 dBm (LoRa, SF12, 62.5 kHz)
• Modulation: FSK, GFSK, MSK, GMSK, LoRa, OOK
• Data rate: FSK 1.2 to 300 kbit/s, LoRa from 0.018 kbit/s
• GPS: u-blox NEO-M8N
• Power management: AXP2101
• Power supply: 5 V via USB or 18650 cell (3.7 to 4.2 V)
• Operating temperature: -40 to 85 °C
• Dimensions: 100 × 33 × 20 mm
• Weight: 64 g

Scope of Delivery:

• 1× LilyGo TTGO T-Beam ESP32 868MHz LoRaWAN NEO-M8N GPS Board
• 1× antenna 868 MHz
• 1× IPEX cable
• 3× nut
• 2× pin header 13-pin
• 18650 cell not included