Meshtastic (An inexpensive open source GPS mesh radio for hiking, skiing, flying, walking).

https://meshtastic.org
An open source, off-grid, decentralized, mesh network built to run on affordable, low-power devices

Radio Mesh text messaging
Off-grid messaging using low-cost hardware to create your own personal mesh. Radios transmit messages to the next to flood the network. Communicate kilometers/miles between nodes. Internet-connected relay nodes also allow the conversation to move online.


Video @libreware
LoRaWAN - Wikipedia -
F-Droid app :
https://f-droid.org/packages/com.geeksville.mesh/

#Meshtastic
#MeshNetwork #Radio #RF #LoRa #LoRaWan #I2p #Mesh
#DecentralizedNetwork #MeshNetwork