Meshtastic, open-source software for microcomputers that enables location information sharing and message transmission and reception by GPS without the need for a smartphone



Outdoor activities such as mountain climbing and skiing may take place where your smartphone is out of range and cannot be used. Meshtastic, an open-source software that uses a microcontroller for about $ 30 (approximately 3,000 yen) to provide devices that can share location information and send and receive messages using GPS, which is useful in such cases, has appeared.

What is Meshtastic? | Meshtastic

https://www.meshtastic.org/

Meshtastic: A Hiking, Skiing, GPS Mesh Communicator-Hackster.io
https://www.hackster.io/punkgeek/meshtastic-a-hiking-skiing-gps-mesh-communicator-84f999

GitHub-meshtastic / Meshtastic-esp32: Device code for the Meshtastic ski / hike / fly / Signal-chat GPS radio
https://github.com/meshtastic/Meshtastic-esp32

Meshtastic is free open source software for microcontrollers that extends GPS wireless communication technology to share location information and send and receive messages within a few miles, even without a mobile line used in smartphones and other devices. What you made possible. It can be used to find outdoor sports and lost children.

The following is a demo movie that actually uses Meshtastic.

Meshtastic open-source GPS communicator-YouTube


There are three microcomputers with Meshtastic installed.



Use arrows to display the position of other microcomputers ...



It is also possible to send a preset message.



You can also check the remaining battery power etc. connected to the microcomputer.



Supported devices are ' TTGO T-Beam ' and ' LoRa 32 ', both of which can be purchased for less than $ 30 (about 3000 yen).

TTGO T Beam ESP32 433/868 / 915Mhz WiFi Wireless Bluetooth Module ESP 32 GPS NEO 6M SMA LORA 32 18650 Battery Holder With OLED | Circuits | |
https://www.aliexpress.com/item/4000119152086.html



WIFI LoRa 32 (V2) – Heltec Automation

https://heltec.org/project/wifi-lora-32/



Also, if you connect your smartphone and device with BlueTooth, you can use Android apps to create groups that share location information and set up messages in advance. The app is only published on GitHub at the time of article creation, but you can also pre-register on the Google Play Store.

GitHub-meshtastic / Meshtastic-Android: Android companion application for the Meshtastic ski / hike / fly / Signal-chat GPS radio

https://github.com/meshtastic/Meshtastic-Android

Meshtastic-apps on google play
https://play.google.com/store/apps/details?id=com.geeksville.mesh



eshtastic is currently in alpha and has been commented to continue improving battery life and Android app UI.

in Software,   Hardware, Posted by darkhorse_log