Meshtastic
Meshtastic® is a project that enables you to use inexpensive LoRa radios as a long range off-grid communication platform in areas without existing or reliable communications infrastructure. This project is 100% community driven and open source!
· LoRa radio · #note/sink ·
Links
Meshtastic
Meshtastic Web Client
Meshtastic Web Flasher
MeshNY
Hardware
My selection
Lylygo
total: $72, $91 with case
Video: T-Beam SUPREME Meshtastic LoRa Radio Build Guide | PARTS | ASSEMBLY | FIRMWARE
RAK
My choice
RAK is very power efficient, for me it works 3 weeks on one charge of 5000mAh battery
| Part | Price | 
|---|---|
| RAKwireless WisBlock US915 Base RAK19007 + Core RAK4631 bare main board starter kit | $35 | 
| MakerHawk 3.7V 6000mAh LiPo Battery Rechargeable | $14 | 
| Case for WisBlock Meshtastic Starter Kit | $20 | 
+antenna below total: $57, $77 with case
Video: Best Beginner Meshtastic Radio on a Budget
Ready radio
| Radio link | Price | Image | 
|---|---|---|
| Atlavox M1 Meshtastic Radio | $85 | !128 | 
| RAK WisMesh Pocket V2 | $90 | !128 | 
Sensors
Barometric Pressure Sensor
SD Card Module
Solderless OLED screen kit
Antennas
| Model | Price | Estimation | 
|---|---|---|
| Wishiot 915MHz Lora Antenna 5DBi Gain  SMA Male Omni-Directional Antenna with U.FL/IPEX to SMA Connector  | 
$8 | Questionable | 
| ALFA Network AOA-915-5ACM 5 dbi Omni Outdoor 915MHz 802.11ah Same model on Rockland  | 
$17 | Good reviews | 
| RAIGEN 915Mhz LoRa Fiberglass Antenna With Magnetic Base, SMA Male Connector 6.5ft Raigen-200 Cable  | 
$55 | 
And big choice of LoRa antennas on Rockland