Mesh Radio Networking
MeshCore Radio Networking
MeshCore, Raspberry Pi, Python, PHP, bash scripts, radios, antenna math, 900mhz frequencies at 33cm wavelengths, mqtt, and developing my own wireless BBS.
I am using two Seeed Studio "WIO L1 Tracker" radios and one SenseCAP "T1000-E" companion radio.
The L1 Tracker has USB-C for easy charging and programming, a little OLED display, and GPS, for $50.
https://www.amazon.com/dp/B0FNCS5ST1
One of the two is semi-permanently mounted in my home's attic as a repeater. I have the radio connected to a Raspberry Pi, stuck up in the attic also. The pair allows me to update the radio firmware over USB, use the repeater as an observer/helper using MTQQ, and keep the radio charged. The RPi is powered PoE from a battery-backed network switch down in the office below.
I carry the T1000-E card on me as my companion radio because its small and durable.
More ▼https://www.amazon.com/dp/B0DJ6KGXKB
I am using the second L1 Tracker for development and testing. Experimenting with antennas, radio range around town, firmware tweaks, USB/serial data is easy with this second unit so my primary repeater and personal T1000e companion remain stable.
Today, I am able to easily pass messages directly between my home radio in the attic and my work's property, 4 miles apart across the Auburn, WA valley. The 900mhz radios emit less than 100-milliwatts but broadcast data line-of-sight directly, and with MeshCore, can bounce around various repeaters to hit the message's destination.
Hacking
Wireless
Programming
