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SlunseCore Companion Firmware v1.17.1

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@github-actions github-actions released this 14 Aug 20:55
· 2 commits to slunsecore since this release
sc-companion-v1.17.1
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SlunseCore Companion Firmware v1.17.1

SlunseCore companion builds track MeshCore v1.17.1 and add SlunseCore custom features on top.

Official upstream release: MeshCore v1.17.1 — 14 Aug 2026

SlunseCore changes

Retained from earlier SlunseCore work: on-device Settings (ui-new) for buzzer, path hash, auto-add contacts, screen/timezone/advert settings, and boot logo, themed onto MeshCore's semantic UIColor display system with a working selection highlight on monochrome displays. Also retained: Packet FWD toggle, battery/USB indicator, and nRF52 idle sleep from upstream.

R1 Neo and Minewsemi ME25LS01 companion/repeater/room-server builds now use upstream's own v1.17.1 build fixes directly (see below) rather than SlunseCore's earlier ad-hoc patches for the same gaps.

Known gap: ThinkNode_M5_companion_radio_serial is disabled in this release — its SERIAL_TX/SERIAL_RX pins reference Arduino D6/D7 aliases that don't exist for this board, and no schematic-verified GPIO pair is available yet (upstream has the same unresolved gap as of v1.17.1). All other ThinkNode M5 variants (BLE/USB/WiFi/repeater/room-server/etc.) are unaffected.

Official MeshCore v1.17.1 release notes

The following is condensed from the official MeshCore v1.17.1 announcement (14 Aug 2026). This is a point release focused on fixes on top of v1.17.0.

New Features

  • New radio.fem.rxgain / radio.fem.txgain CLI commands (txgain support currently limited to Station G3)
  • Missing KISS radio roles added, plus KISS radio build support

Enhancements

  • Modified login-response behavior for direct login scenarios (prevents flood messages)
  • LR2021 preamble-detection and IRQ-timeout logic updates
  • nRF52 CC310 optimization: nRFCrypto now initialized only once
  • Debug print flags added for noise-floor monitoring
  • Improved RNG: combined entropy from radio + CC310 sources

Critical Fixes

  • Heltec T096 transmit failure, caused by an out-of-bounds PIN_SPI1_MISO configuration
  • T-Echo Lite pin alignment and TCXO voltage adjustment (3.0V), matching revised Lilygo schematics
  • R1 Neo and Minewsemi ME25LS01 repeater build issues
  • Rx boosted gain no longer resets to the compiled-in default after an AGC reset
  • T-Beam Supreme S3 display functionality restored
  • Multiple unused-pin corrections across nRF52 boards

FEM Configuration Note

radio.fem.rxgain was not being persisted properly in earlier versions. Repeater administrators with FEM-equipped devices (e.g. Station G3) should verify their FEM gain settings after updating.

See the full MeshCore v1.17.1 changelog for complete details.

Flashing

Download from the release assets → flasher.meshcore.io → Custom firmware.

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