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Firmware Dongle v3

OneSeventyFour edited this page May 15, 2026 · 2 revisions

Dongle firmware v3

Released 2025-01
Status Historical — superseded by v4
Pairs with receiver v7+
Predecessor v2
Notable Migrated off RF24Mesh — direct point-to-point addressing.

Downloads

File Purpose Download
os4_dongle_v3.bin App partition. Download
os4_dongle_v3.bootloader.bin Chip bootloader. Download
os4_dongle_v3.partitions.bin Partition table. Download
os4_dongle_v3.boot_app0.bin OTA "next-app" pointer. Download

Release notes

Migrated from RF24Mesh to pure RF24 with deterministic addressing. Removed the mesh routing overhead — the direct nRF24L01+PA+LNA range made mesh unnecessary, and the routing layer's failure modes were complicating debugging.

Upgrade notes

  • Hard wire-protocol break with v2 and earlier (the mesh routing header is gone).
  • Pair with receiver FW v7+.

How to flash

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