Freematics Forum

Ok. I got an example dataset directly from my FreematicsONE v4 which looks like:

#6103,ACC,2,-1,109 0,ACC,2,-1,109 0,ACC,2,0,109 0,ACC,2,-1,109 0,ACC,1,0,110 0,ACC,2,-1,109 0,ACC,2,-1,109 0,ACC,2,-1,109 0,ACC,2,-1,109 0,ACC,2,-1,109 0,ACC,2,-1,109 0,ACC,2,-1,109 7728,UTC,7284200 0,LAT,51&#46 ...

@dave: We are located in Germany and we are currently using the WiFi module.

Hi,

I am also working at a Start-up trying the exact same thing. I wrote a Blog post about my progress: https://www.cyface.info/index.php/2016/09/12/how-to-log-telematics-data-to-the-cloud-using-freematics-obd2-dongle-v4-und-java/
An example server and a fixed telelogger (although ...

We also wrote a Blog post about our experiences with the Freematics OBD 2 Dongle and how to write a server for it. You can find it here: https://www.cyface.info/index.php/2016/09/12/how-to-log-telematics-data-to-the-cloud-using-freematics-obd2-dongle-v4-und-java/

@dave: I fear I do ...

You're welcome. It is still kind of a prove of concept. I intend to fix some existing issues during the next weeks.

So in the example data the first ACC entry was received at 5506, while the second was received 111 ms later, am I correct? If yes I think I got it.

For my second question. Could you please tell me what is the measuring unit for the acceleration values like -913, or how do I convert that value to ...

Hi,

I know there is an article about this topic under: m, which I read again and again, but I don't get it. I got two questions.

First: There are supposed to be timestamps at the beginning of each entry telling me the offset in milliseconds since the "previous data entry". But what is that ...

Hi,

You can use the telelogger sketch for that purpose. We played a little with it over the course of the last few days, fixed some issues and wrote an example cloud to take the data from the telelogger.
You can view our results at GitHub.
* Fixed Fork of Freematics Code: m
* Example Cloud/Server ...