Support

Which cars

Any car sold in the United States from model year 2008 on, and many 2004 to 2007 cars: everything that speaks CAN OBD-II. An older car connects, but Baseline cannot decode it and says so.

Which adapters

• OBDLink CX (Bluetooth LE): known to work. Baseline is built and tested on it.
• Inexpensive Bluetooth LE adapters built on the ELM327, such as the Vgate iCar Pro BLE, Veepeak OBDCheck BLE and vLinker BLE, should connect too but have not been tested on a car yet. They are slower, so a drive records fewer samples.
• Wi-Fi adapters and classic Bluetooth adapters cannot be used by an iPhone app.

Pairing

Plug the adapter into the OBD-II port under the dash. Power the car on so the dash lights up. Open Baseline and tap Connect; iPhone asks to pair the first time. Keep the adapter's own app closed, because the adapter talks to one app at a time. Once paired, Baseline connects on its own whenever the adapter wakes up with the car, even with the phone in your pocket.

Several cars: keep one adapter in each and pair each once. Baseline waits for all of them and records whichever car is switched on; every car keeps its own drives and baseline.

Help with other adapters

After a drive with an adapter other than the OBDLink CX, or a connection that fails, Baseline offers an adapter report. You see everything in it before your own Mail sends it, and nothing is sent unless you do. These reports are how the list of adapters that work grows. Settings › Adapter › Send an adapter report sends one at any time.

If it will not connect

• Is the car powered on, with the dash lit? The adapter sleeps with the car.
• Is another app talking to the adapter? Close it.
• Settings › Adapter, tap Forget beside the adapter, then unplug it, plug it back in and connect within a minute.

Contact

Write to digitalstructures@proton.me. Say which iPhone, which car (year and model) and which adapter, and what you saw.