MeshCore (Official)

Capabilities

Node roles

Features

• Multi-hop packet routing
• End-to-end encrypted DMs
• BLE / USB / TCP companion clients
• Web, iOS, Android, Python & NodeJS clients
• Native flood-advert traffic management (1.16+)
• Web-based flasher

1. v1.16.0 # Latest 3 variants 15 days ago · 2026-06-06 15:55 UTC

   companion companion-v1.16.0 View ↗

   repeater repeater-v1.16.0 View ↗

   room server room-server-v1.16.0 View ↗

   Download

   Latest firmwares are in the flasher.meshcore.io

   Change Log

   New Features

   • New CLI config var ‘flood.max.unscoped’ #2661
   • New CLI config var ‘flood.max.advert’ #2702
   • longer preamble now for lower SF. (32 for SF<=8, 16 for SF>8) #1954
   • app/companion can now do anon_req/response with non-contact nodes #2672
   • companion auto-shutdown, disabled when on external power, new UI warning on display #2663
   • new ‘region def …’ CLI command #2540
   • extended ACK support #2594
   • app/companion can now compose and send raw packets #2543
   • companion can now override default scope to explicit unscoped #2492

   Enhancements

   • All ESP repeaters, power saving improvements #1687
   • nRF companions, power saving #2286

   New device support

   • NEW: LilyGo T-Echo Card support #2517
   • NEW: LilyGo T-Impulse Plus support #2522
   • NEW: Station G3 support #2515
   • NEW: Heltec Mesh Node T1 support #2520
   • new Xiao S3 variants (repeater, companion, etc) #2383

   Bug fixes and Other

   • RP2040 target build fixes. #2684
   • companion protocol max frame size increase (now 176) #2022
   • RAK Wismesh Tag fixes #2664
   • Bug fix: repeater neighbor discovery fail when path.hash.mode != 0
   • RAK4631, now using Bosch driver for BME680 sensor #2634
   • enable radio.rxgain CLI command for LR1110 (T1000e) #2235
   • default flood advert interval now 47 hours (was 12) #2608
   • Client repeat (off-grid) EU freq change (from 869.0 to 869.495) #2604
   • CLI validation on rxdelay, txdelay and direct.txdelay #2443
   • Heltec T096, sensor node support #2576
   • Heltec E290 USB companion fix #2562
   • WiFi companion, reconnect logic redesigned for non-blocking #2493
   • RAM usage reduced for older boards #2497
   • nRF variants, CustomLFS lib upgrade to v2.2 #2519
   • T-Echo Lite, fixes to RXEN, TXEN and TCXO #2511
   • KISS modem frame timeout fixes #2490
   • sensor manager redesign #2327
   • startup tune suppressed if sound pref off #2460
   • added KISS Modem variants for most boards #2620 #2432
   • Adafruit nRF BLE fork, to prevent lockup during rapid connect/disconnect #2430
   • RAK3401 companion, analog button support #2436
   • Heltec boards, LNA disabled by default #2439
   • new splash screens #2424
   • Sensecap Solar Tx LED fix #2157
   • new repeater variant: Heltec V4 expansion kit #2326
   • new T-Echo Lite non-shell companion variants #2503 #2353
   • T-Echo Lite, battery measure fix #2287
   • RAK4631, sx1262 reset pin fix #2008
   • Heltec T096, Wireless Tracker: FEM/LNA enable by default #2340
   • R1 Neo, shutdown fix #2371
   • Heltec V4, set adc.multiplier support #2335

   Limiting Unscoped Traffic

   The new flood.max.unscoped CLI config variable is specifically for limiting unscoped flood traffic. Like flood.max, it drops unscoped flood packets which have already had a given number of hops. By default it is 64, which is essentially off.

   Limiting Advert Traffic

   The new flood.max.advert CLI config variable is specifically for limiting adverts. Like flood.max, it drops advert packets which have already had a given number of hops. By default it is 8.

   New Preamble

   When using the lower Spreading Factors, the radio has less time to lock onto an incoming packet, so this change gives the faster SF’s a longer preamble, and thus decreasing the chance of the preamble being missed. For SF <= 8, the preamble is now 32 symbols.

   Improved Region Discovery in Mobile App

   The new companion firmware, and latest app, will be able to do ad-hoc requests to near by repeaters without having to add them to contacts first. This will streamline both repeater discovery, and region discovery.

   New region def Command

   Defining regions via the CLI is currently quite verbose, and the latest CLI handling introduces a new region def... command which has a short-hand notation for defining regions, especially ones which have deep nesting.

   See the CLI Command Reference for more details.

   Extended ACK Support

   The latest firmwares introduce support for ‘extended ACKs’, which are 6 bytes instead of 4. The extra bytes contain an extended attempt number, and additional random byte. This is in preparation for a later app feature which will enable much more than 4 attempts for direct messages. For now, repeaters will have to be updated first.

   Companion Raw Packets

   The latest companion firmwares now enable apps to compose the full packet, ie. headers, path and payload. This can correspond with the existing RxLog ability, so app can do its own raw send and receive of packets.

2. v1.15.0 # 3 variants 2 months ago · 2026-04-19 06:48 UTC

   companion companion-v1.15.0 View ↗

   repeater repeater-v1.15.0 View ↗

   room server room-server-v1.15.0 View ↗

   Download

   Latest firmwares are in the flasher.meshcore.io

   Change Log

   • Default Scope support
   • Support for New GROUP_DATA (binary) packets #1928 #2130
   • Heltec V4.3 support #1867
   • Heltec nRF Tracker (T096) support #2097
   • GAT562 Mesh EVB Pro repeater and room server support #2042
   • Radio rxgain now ON by default #2124
   • Radio freq range now supported down to 150Mhz #2126
   • GPS pref peristence fix #2018
   • New get|set dutycycle CLI command #1961
   • Muzi Works R1 Neo support #2007
   • GAT562 Watch support #2138 #2228
   • BME680 sensor init fix #2227
   • Heltec Wireless Paper battery read fix #2164
   • WiFi companion fixes for Heltec V4,TBeam 1W #1833
   • Waveshare RP2040: RXEN fix #2298
   • nRF companion, support for OTA updates #2323
   • Added companion for Heltec Wireless Paper #2315
   • Misc #2134 #2190 #1425 #2075 #2302 #2306
   • Xiao C3 bootloop fix #2328

   Documentation Links

   For info on the new Default Scope feature, please see this article.

   For low level format of the GROUP_DATA packets, please see this docs link.

3. v1.14.1 # 3 variants 3 months ago · 2026-03-20 03:53 UTC

   companion companion-v1.14.1 View ↗

   repeater repeater-v1.14.1 View ↗

   room server room-server-v1.14.1 View ↗

   change log: Added GPS support for SenseCAP Solar P1 in #1589 Power off switch long press support for SenseCAP Solar P1 #1871 Added nRF52 power management for RAK3401 in #1984 Added token bucket based duty cycle enforcement in #1297 Added support for new GAT562 30S Mesh Kit device in #2009 Added support for new GAT562 Mesh Tracker Pro device in #1980 Added LNA toggle CLI commands radio.rxgain on and radio.rxgain off in #1653 Added MCU temperature to telemetry responses from room servers in #2052 Migrated Heltec Tracker v2 to KCT8103L in #1936 Nodes with GPS enabled will now auto sync time every 30 minutes in #1350 Fixed bug where some queued packets would not get transmit in #1877 Fixed bug where automatic adverts were not using the configured multibyte path setting in fcfdc5f