The app connects your Android Wear smartwatch to your car ECU using Bluetooth ELM327 adapter directly, without needing phones or tablets.

First, please perform pairing your watch (not a phone!) with the adapter as it's shown on the pictures.

Pairing devices is the Android system job, not the app's.

If it does not work, try both codes, i.e. 1234 or 0000 (or even other known from your adapter's supplier). The name must begin with OBD letters. If not, please report and the app may be edited.

The interactive watch face was tested with LG G Watch, Asus Zenwatch and Mini-Bluetooth adapter. Users say it works on Moto360 too.

To switch the mode, press the left/right quarters of the watch screen, to turn the Bluetooth connection on/off please tap the center.

Notes.

1. Do not drive while playing with the app.

2. ELM327 V2.1 may work or not. Author tested a cheap Mini-Bluetooth adapter, it works just fine.

3. You can change the colors using your phone (companion Android Wear app) or background color using the watch directly. (Sadly, Asus Zenwatch manager does not let to do this.)