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The owner’s guide

Luma is a small light that glows in a colour when something in your routine is due, and stays lit until you tap it. There is no account, no cloud, and no feed — which means almost everything worth knowing fits in the short guide you’re reading now.

Everything runs on the device itself. Your phone and the companion app are remote controls: reminders keep firing with the app closed, the phone off, or the internet down. The only thing Luma needs from your network is Wi-Fi for the clock and for the occasional firmware update you choose to install.

Start

Everyday

  • Reminders — Schedules, gradients, firing, and the tap.
  • Modes — Hydration, Pomodoro, and Vacation.
  • PIN & sharing — Locking Luma down, or opening it to the household.

More devices

  • Satellites — Adding more Lumas and sending reminders to rooms.

Care

  • Updates — How firmware updates are found, installed, and rolled out.
  • Recovery & reset — Factory reset, USB recovery, and re-pairing.
  • Troubleshooting — Symptom-first fixes for the things that go wrong.

Trust

  • Privacy — Exactly what Luma talks to, and what it never sends.
  • Local API — Automate Luma over your own network.

A note on honesty

This guide documents what the firmware and app actually do, including their edges and limits — the reminder cap, what a satellite misses while it’s offline, which addresses resolve and which don’t. Where a behaviour is a deliberate trade-off, the guide says so rather than papering over it.