I have 7 Meshtastic devices ordered and am printing out cases and trying to figure out my configuration. My family owns a house that is adjacent to state forest land which is littered with roads and trails I have been hiking on a lot during COVID. This is an area about 3 x 6 miles that slopes up from the water. Mostly I like playing with electronics, but my parents would also probably be happy to know my location when I am hiking alone and out of cell range.
My plan is to have a base station at the house that is connected to wifi and potentially a roof mounted antenna and place as many “router/relay” devices as I need using a bear bag method to maintain communications while on a hike / backpacking trip and carrying a unit tracking the hike. I bought 2 TTGO-LORA32 units without GPS and 5 TTGO T-BEAM boards.
While I don’t want to leave devices permanently on state land, the 8 day battery life listed on the home page would be the maximum amount of lifespan I would realistically need for the relay nodes.
I have laid out the three types of device configuration I think I need below, and have a couple of other questions.
- If I do all the config with the python CLI ahead of time can I skip using the app?
- What should I look for in regards to the signal strength of the connection to the previous node to indicate it is time to put out another relay?
- Geofencing - If I wanted to get a message if I have left state land and am potentially on private property for example, I would use a computer monitoring my position from the base station and do the geofencing code on that computer, sending a message back using the base station correct?
Base Stations - TTGO LORA32
(No GPS) Assumed to be stationary and connected to power and WiFi.
# Python API Commands # Set device owner name meshtastic --setowner basestation # Set device region meshtastic --region US # Set Time meshtastic --settime # Hook up to the wifi meshtastic --set wifi_ap_mode false --setstr wifi_ssid yourssid --setstr wifi_password yourwifipsk meshtastic -- set fixed_position true # Set GPS Location House meshtastic --setalt 71 --setlat XX --setlon XX
Portable Router/ Relay Units - TTGO T-BEAM
Left along the route hung like a bear bag to provide contiguous coverage. Based on advice here Howto easy create a relay/router node?
# Set Owner meshtastic --setowner relaydevice # Set device region meshtastic --region US # Set Time meshtastic --settime # Turn On router mode meshtastic --set-router
Personal / Hiker Trackers - TTGO T-BEAM
Carried in a backpack, could be lifted by my drone if necessary
# Set Owner meshtastic --setowner username # Set device region meshtastic --region US # Set Time meshtastic --settime