# T-Echo LoRa APRS Tracker Firmware

> Ultra-low-power custom APRS tracker firmware for the LILYGO T-Echo that uses the nRF52840's deep-sleep modes to achieve 100 µA standby current while transmitting GPS positions over LoRa.

## Details

- **Difficulty:** intermediate
- **Project Type:** build
- **Board Types:** nRF52840
- **Devices:** lilygo-t-echo, lilygo-t-echo-plus
- **Firmware:** Arduino (Adafruit nRF52)
- **Use Cases:** Ham Radio, GPS Tracking, LoRa & WAN, E-Paper & Signage
- **Links:** Github Url: https://github.com/cfr34k/t-echo-lora-aprs

## Tags

`aprs`, `lora`, `gps`, `nrf52840`, `e-paper`, `ham-radio`, `ultra-low-power`, `t-echo`, `ble`

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