Meshtastic is a great project which can be used in a variety of ways. One of these is to create off-grid mesh networks. Meshastic should not be confused with Mesh Net software which directly links phones together via onboard WiFi or Bluetooth. Meshtastic devices are a separate means of accomplishing mesh networking. This video helps explain the meshtastic approach to mesh networking Here's the link https://www.youtube.com/watch?v=gqAsWtIjHUY
2021-03-13, 00:25:19
The 915MHz ESP32 LoRa OLED 0.96 SX1276 Transceiver Module + LoRa Antenna U.FL IPEX to SMA + 2P 1.25mm Connector for Arduino LoraWan IOT (Pack of 2)
are on amazon.ca ... $68 for a pack of 2
are on amazon.ca ... $68 for a pack of 2
2021-03-13, 00:40:48
Power supply options....
These devices use public domain frequencies, 915 mhz and limited to 25mW. A 6db antenna is permitted.
At 10V input voltage, the current draw was 0.099 A (or 9.99mA). – 0.099A = 99mA
At 5V, the current draw was a little higher, at 0.128 A (or 12.8mA). – 0.128A = 128mA
https://techexplorations.com/guides/esp32/begin/power/
These devices use public domain frequencies, 915 mhz and limited to 25mW. A 6db antenna is permitted.
At 10V input voltage, the current draw was 0.099 A (or 9.99mA). – 0.099A = 99mA
At 5V, the current draw was a little higher, at 0.128 A (or 12.8mA). – 0.128A = 128mA
https://techexplorations.com/guides/esp32/begin/power/
2025-05-01, 12:17:21
2025-05-01, 18:12:35
(2025-05-01, 12:17:21)Mark VA3VBE Wrote: Finally got my Heltec V3, solar panel, & meshtastic antenna up.that looks great,i'm working on one also.what frequency are you using.
Its on my network with its own IP address via WiFi.
I can issue commands to it from the command line in Linux or also configure via meshtastic app on phone.
Working on linking to MQTT next. Learning as I go.
2025-05-07, 20:28:39
(This post was last modified: 2025-05-07, 21:00:51 by Mark VA3VBE.)
Getting this Heltec V3 working with MQTT has taken me a couple of days working on it off and on. Flashed firmware like 4 times and finally the last one 2.6.7 alpha seemed to stick and work. This is the one with longer antenna and up on a pole with battery & solar charging. I'm now starting to see my own nodes on the map along with other ones in Canada and beyond. Currently my node is showing up on the maps, but I'm thinking it might disappear if I shutdown the Android or PC that is running the mqtt client. I'll have to figure out which one to leave running. Again, I'm just cutting my teeth on this and still have a lot to learn. Anyway, see if the node shows up on the links below:
See https://map.mt.gt/#1127921772
And https://meshtastic.liamcottle.net/?lat=4...506&zoom=8
This https://wiki.mt.gt/ site was most helpful.
I will continue to post on my progress from time to time.
906.72 MHz I think. I'll double check.
See https://map.mt.gt/#1127921772
And https://meshtastic.liamcottle.net/?lat=4...506&zoom=8
This https://wiki.mt.gt/ site was most helpful.
I will continue to post on my progress from time to time.
(2025-05-01, 18:12:35)Bobby_ve3pav Wrote:(2025-05-01, 12:17:21)Mark VA3VBE Wrote: Finally got my Heltec V3, solar panel, & meshtastic antenna up.that looks great,i'm working on one also.what frequency are you using.
Its on my network with its own IP address via WiFi.
I can issue commands to it from the command line in Linux or also configure via meshtastic app on phone.
Working on linking to MQTT next. Learning as I go.
906.72 MHz I think. I'll double check.
2025-05-07, 21:46:37
(This post was last modified: 2025-05-07, 21:49:06 by Mark VA3VBE.)
Sorry, I was wrong. I'm using the standard presets which are fine in my area because of low congestion etc.
Channel # Frequency (MHz)
0 903.08
Channel # Frequency (MHz)
0 903.08
« Next Oldest | Next Newest »
Users browsing this thread: 1 Guest(s)