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Firmware Downloads ​

JKBMSR public firmware artifacts are published in the public jkbmsr-releases repository and served from:

  • https://cdn.jkbmsr.com

This public release host is for manual downloads, checksum verification, release notes, and public OTA verification material.

Current target:

  • esp32dev

Public release contents:

  • firmware binary
  • checksum file
  • signed OTA metadata
  • release notes
  • public verification key

Canonical Public Paths ​

  • https://cdn.jkbmsr.com/
  • https://cdn.jkbmsr.com/firmware/latest.json
  • https://cdn.jkbmsr.com/firmware/releases.json
  • https://cdn.jkbmsr.com/ota/latest.json
  • https://cdn.jkbmsr.com/docs/VERIFY_FIRMWARE.md
  • https://cdn.jkbmsr.com/CHANGELOG.md

Distribution Split ​

  • Use https://cdn.jkbmsr.com for manual download and verification.
  • Production OTA updates are still delivered through the authenticated cloud API.
  • The public release host does not replace dashboard authentication, device authorization, or OTA rollout control.

Manual Download Flow ​

  1. Open https://cdn.jkbmsr.com/firmware/latest.json to confirm the current public version and target.
  2. Open https://cdn.jkbmsr.com/firmware/releases.json if you need public release history or installer-facing version listings.
  3. Download firmware.bin and firmware.sha256 for the matching target directory.
  4. Verify the checksum before flashing.
  5. Review release.json, release notes, and OTA metadata if you are validating a support case or installer workflow.

JKBMSR version 1 supports JK-BMS only.