Freematics Forum

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.

When you update the firmware, don't connect any OBD device to the emulator.

The repository of the sketch for kit #2 and kit #3 is here:
https://github.com/stanleyhuangyc/Ardui ... megalogger

Please follow this guide:
http://blog.freematics.com/2014/users-g ... tics-kits/

Gyro data and temperature data are not logged in the sample sketch, though they are retrieved. Take a look at the code please.

The OBD-II adapter is not firmware upgradable.