Pairing & Auto-detect

Pairing a device#

Every ZeroTrace device connects to the app over Bluetooth LE. There is no pairing PIN, no Wi-Fi setup and no cable required, you scan, you tap, you are connected.

1. Power on the device

   Give the device power (battery or USB). It starts advertising over Bluetooth LE as soon as it is on, under a short name that hints at its family, see the table below.

2. Scan from the hub

   Open the app to its device hub and start a scan. The app filters the air for ZeroTrace devices by their advertising signature, so your list stays clean, you see your gear, not every phone and earbud in the room.

3. Select your device

   Tap the device you want. The app connects over BLE, no PIN or confirmation code to type in.

4. Let the app configure itself

   On connect, the device reports its own firmware type. The app resolves that to one of four device families and loads exactly the screens that family supports, instantly, with nothing for you to pick by hand.

Your paired devices are remembered, so the next time you open the app they are ready to reconnect without scanning again. You can keep several devices saved in the hub and switch between them freely, each keeps its own connection state, settings and history.

How auto-detect works#

The app never asks you what you plugged in. Two things happen automatically:

1. The scan recognises a ZeroTrace device. Every device advertises with a manufacturer-data signature and a short name prefix specific to its family, so the app's scan can tell a ZeroTrace device from the rest of the Bluetooth traffic around you before you even connect.
2. The connected device reports its firmware type. Once connected, the device tells the app what firmware it's running. The app maps that to a device family and switches its whole UI, tabs, screens, settings, to match.

This is why the app never has a "select your device model" screen: the device tells the app what it is, every time.

Family reference#