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LED Signal Patterns

LED signal patterns​

The device has 3 three LEDs (B, G, R = Blue, Green, Red), labeled Status on the PCB: 🔵🟢🔴.

Patterns during booting/restart​

  • 🔵⚪🔴 B and R on: Device is in Bootloader Mode (not actively running, remove config adapter press reset to leave Bootloader Mode).
  • 🔵->🟢->🔴 Quick cycle B, G, R for ~0.5s: Device just booted, either after power on, reset b button or software, or after a hard failure.
  • ⚪⚪🔴 R flashes repeatedly on and off in 1s interval: critical failure during boot (failed to start application).

Patterns during normal operation​

  • 🔵⚪⚪ B flashes 1s on and 1s off in loop: building LTE connection to mobile provider. Followed by:
    • ⚪🟢⚪ Short G flash on success.
    • ⚪⚪🔴 Short R flash after connection failed.
  • ⚪🟢⚪ G flash during installation mode while collecting wireless M-Bus telegrams.

Exceptional patterns​

  • 🔵⚪🔴/🔵🟢⚪ Quickly changing between R & B and G & B every 5s in a loop: Modem is in connection restriction mode - keep device on power, will fix itself after 30min.