Freematics Forum

It's connected to A4 and A5.

The streaming data does not include the timestamp which is the first number in every line of data in logged file.

The 5V is not picked from Arduino. It's converted and regulated from the 12V. The 5V is for powering Arduino.
Uh!
So a second question arises: is the adapter somehow protected from voltage spikes coming from the car power?
I read in a lot of post many recommendations in doing so (e.g. via a ...

Please download the latest source code instead the one of last year.
All resources (downloads, guides) are available on the [url=http://freematics.com/pages/products/arduino-telematics-kit-3/product page[/url].

It's a product designed for open-source hardware (Arduino), with open-source library. The hardware of the product is not open-sourced.

A new API of getVoltage() has just been added in OBD-II library for getting car battery voltage. This feature is provided by OBD-II adapter and does not requires car engine started. The latest code is in the repository - https://github.com/stanleyhuangyc/ArduinoOBD

I can confirm you that pin 7 is connected and used.

If the OBD is not connected to car (not powered), please don't connect it to the LCD shield.

Maybe you can try on a new car to eliminate the possibility of malfunctioning of the adapter.

The 5V is not picked from Arduino. It's converted and regulated from the 12V. The 5V is for powering Arduino.