"hzgl-lora-communicator" is an open source software for a battery-powered two-way messaging device. It uses The Things Network Community Edition (LoRaWAN) for bi-directional data connectivity.
- Free to use with good coverage in nearly all major cities around the world.
- Note: as of December 2021, the software is configured to work in Europe. This may be improved in the future.
- Send text messages up to 100 characters in length.
- Receive text messages up to 50 characters in length.
- Display and transmit GPS location.
- Display and transmit environment (temperature, humidity, pressure) readings.
- Fox-hunt nearby 2.4GHz WiFi and Bluetooth LE transmitters.
As of December 2021, the software exclusively targets the TTGO T-Beam board
revision v1.1. In addition, the software is configured to work with European
cities by using the EU868 frequency plan. These may change in the future.
"TTGO T-Beam" is an IoT development board manufactured by Chinese company "LILYGO". The board features:
- An ESP32 microcontroller with built-in 2.4GHz WiFi and Bluetooth LE transceivers.
- A LoRa transceiver.
- A GPS receiver and its ceramic antenna.
- A battery holder for 3.7V 18650 cell.
- A 0.96 inch OLED.
- The display is often sold as an add-on.
- A BME280 environment (temperature, humidity, and pressure) sensor.
- The software will continue to function even without this sensor.
- Be aware that some Chinese merchants deceive buyers by shipping them BMP280 sensors. The software does not support BMP280.
Follow wiki article Get started to create a new device on The Things Network console, and write the firmware onto your TTGO T-Beam.
Then check out wiki article Usage.
Copyright (C) 2021-2022 Google Inc. All rights reserved.
This program is free software subject to the terms of GNU Public License, v 3.0. You may find the license text in the LICENSE file.
This is not an officially supported Google product.