LILYGO T-TWR Plus
Enhanced ESP32-S3 two-way radio board with SA868 UHF/VHF module, L76K GNSS, 1.3" OLED, AXP2102 PMIC, WS2812 RGB LED, TF card, and PPT button for APRS and walkie-talkie applications.
$51.74
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Specifications
Certifications
Components
Xtensa LX7 dual-core at 240MHz with 16MB flash, 8MB PSRAM, WiFi, and BLE 5.0.
Analog FM voice transceiver covering UHF (400–480 MHz) or VHF (134–174 MHz) bands.
I2C OLED driver for 128×64 monochrome display.
Multi-constellation GNSS supporting GPS, BeiDou, GLONASS with 1PPS output.
LiPo charging PMIC with multi-channel LDO outputs and power path management.
Bus Interfaces
GPIO Map
Overview
The LILYGO T-TWR Plus is an enhanced version of the T-TWR, adding GPS navigation and improved power management to the two-way radio platform. Built on the ESP32-S3 with the SA868 UHF/VHF transceiver, it expands the original's capabilities with an L76K GNSS module, larger 1.3-inch SH1106 OLED display, AXP2102 PMIC, WS2812 RGB LED, and microSD card slot.
The L76K GPS enables APRS position reporting directly from the device, making it suitable for amateur radio fox-hunting, emergency location beaconing, and mobile APRS digipeaters. A dedicated PPT (Push-to-Talk) button enables hands-free radio operation, while support for 18650 and 21700 cells with spring contacts provides flexible battery options for extended field use.
The WiFi and BLE connectivity allows IP-to-RF bridging between analog radio networks and internet-connected systems. Popular with amateur radio operators and emergency preparedness communities building portable communications infrastructure.
Use Cases
3Two-Way Radio
Build a digital walkie-talkie or DMR/analog voice radio with programmable channels.
Asset Tracking
Tracking the location and status of physical assets like vehicles, packages, and equipment.
IoT Gateway
Acting as a local IoT gateway that aggregates data from sensors, runs MQTT broker, Node-RED, or Home Assistant, and bridges to the cloud.
Where to Buy
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