Meshcore is growing in our area

In my experience, Meshcore is different from Meshtastic. MC and MT both have their advantages and disadvantages. In my opinion MC is better suited for large mesh networks with stationary repeaters. MT is better suited for smaller/mobile mesh networks.

Several of us are working on meshcore in the Cave Spring area, we have several repeaters setup already.

We have found a repeater on Tinker mountain, but the signal doesn't reach Cave Spring at this time.

Please use discord to report in if you are building out MC somewhere in our area.

List of Channels

In our area I have seen reference to the following channels:

  • Public - The standard public channel
  • #cavespring - Local chat
  • #test - Various new node chatter along with test messages
  • #wardriving - Monitor for people nearby running meshmapper
  • #wxcavespring - Testing daily cavespring weather reports

Recomended Meshcore Repeater Settings

NOTE: Several other mesh networks recommend setting the coding rate to 8 for repeaters. It might be because there are no retries on channels, so having the extra redundancy helps messages deliver properly.

Radio Settings

  • Frequency: 910.515 Mhz
  • Bandwidth: 62.5 kHz
  • Spreading Factor: 7
  • Coding Rate: 8
  • Auto Advert (Zero Hop): 0
  • Auto Advert (Flood): 12

Advanced Settings

Use the 'Command Line' tab in the meshcore app. Enter one line at a time, press 'send' after each line.

>set txdelay 1.5
OK
>set direct.txdelay 1
OK
>set af 0
OK
>set dutycycle 100
OK - 100.0%

NOTE: use 'set dutycycle 100' in firmware >= 1.15.0. Use 'set af 0' in firmware <= 1.15.0. They do the same thing.

For details on the advanced settings, see the repeater command line reference

Meshcore Questions and Information

OTA update instructions for nRF (RAK Wisblock)

See the meshcore wiki answer here

OTA update instructions for Heltec V4

See Mraanderson's guide here

Using txdelay and rxdelay for very close repeaters

I have two repeaters in my location because, thanks to surrounding hills, there is no single location with a clear line-of-site to the rest of my area.

I noticed both repeaters attempt to broadcast relays at nearly the same time, and they were interfering with each other. I was able to adjust the timing on broadcasts to help prevent collisions. You make these changes in the 'Command Line' tab when signed into the Admin the repeater.

NOTE: these settings worked for me, make sure you understand what you are changing and use values that make sense for your setup.

Hiltop node

>set txdelay 2
OK
>set direct.txdelay 2
OK
>set rxdelay 3
OK

Side-yard node

>set txdelay 2
OK
>set direct.txdelay 2
OK
>set rxdelay 6
OK

References:

Repeater command line reference

Facebook Post by Dan Paxton

Reddit question by wheelieathome

TennMesh recommended repeater settings

More questions or comments?

Send them and will update this page.

Or visit the Discord Server.