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README.md
What is Meshtastic?
Meshtastic is a project that lets you use inexpensive GPS mesh radios as an extensible, super long battery life mesh GPS communicator. These radios are great for hiking, skiing, paragliding - essentially any hobby where you don't have reliable internet access. Each member of your private mesh can always see the location and distance of all other members and any text messages sent to your group chat.
The radios automatically create a mesh to forward packets as needed, so everyone in the group can receive messages from even the furthest member. The radios will optionally work with your phone, but no phone is required.
Typical time between recharging the radios should be about eight days.
This project is currently pre-alpha, but if you have questions please join our chat 
.
This software is 100% open source and developed by a group of hobbyist experimenters. No warranty is provided, if you'd like to improve it - we'd love your help. Please post in the chat.
Update 1
- 02/20/2020 - Our first alpha release of the radio software is ready for early users. If you'd like to try it, we'd love your feedback. Click here for instructions.
Meshtastic Android app
The source code for the Meshtastic Android app is here. Soon our first alpha release of will be released here:
If you would like to join our bleeding-edge alpha test group for this app, we'd love to have you. Three steps:
- Join this Google group with the account you use in Google Play.
- Go to this URL to opt-in to the alpha test.
- If you encounter any problems or have questions, post in our gitter chat and we'll help.
Supported hardware
We currently support two brands of radios. The TTGO T-Beam and the Heltec LoRa 32. Most users should buy the T-Beam and a 18650 battery (total cost less than $35). Make sure to buy the frequency range which is legal for your country. For the USA, you should buy the 915MHz version. Getting a version that include a screen is optional, but highly recommended.
We don't yet distribute prebuilt binaries. But soon (by Feb 22) we will have a file that you can easily install on your radio via USB. Once our software is installed, all future software updates happen over bluetooth from your phone.
For a nice TTGO 3D printable case see this design by bsiege. For a nice Heltec 3D printable case see this design by ornotermes.