Freematics Forum

Hi Stanley

Are you able to help with the parsed GPS data bug? Our freematics development has stalled...

thanks

Luke

Hi Stanley

Are you able to help with the above query? Our freematics development has stalled...

thanks

Luke

Hi Christoph I can log unformatted NMEA streams ok, but turning on Parsed GPS still results in zero byte CSV files. I have tried all sorts of settings - from the defaults to GPS update rates, but have not been able to isolate what causes the zero byte files. I also get zero byte files occasionally w...

HI Stanley

Could you please post a PCB layout or diagram of the pinouts for the OBD-C (V2)?

Specifically, I am trying to work out the pinouts on the device for the purposes of connecting another arduino for debugging.

thanks

Luke

What is the yellow/green(?) light that flashes less frequently?

Update. Tried reading the fuse bytes using: avrdude -p m328p -c usbasp -v -C ../etc/avrdude.conf -U lfuse:r:-:h -U hfuse:r:-:h -U efuse:r:-:h -U lock:r:-:h Still getting the same 'target doesn't answer' error as before. Edit: I tried the same command with the same USBasp and cable on a separate Uno....

After an attempted firmware upload today (using the USBasp purchased from Freematics), the OBD-II adaptor has stopped responding. Previously, firmware uploads have worked ok. Red LED is on when connected to power, have checked all leads between USBasp & Adaptor. Error from Arduino IDE is: avrdud...

1. Can I make this request from datalogger.ino, or do I need to do this in the OBD library? Something like this? write("0902\r"); receive(); 2. To make requests of the OBD-II, does "0902\r" need to be prefixed with an special AT command? For example: a. requests to the GPS depend...

Stanley, Great work on all of this so far. I'm using the latest sketch available at https://github.com/stanleyhuangyc/Freematics/tree/master/firmware_v2/datalogger I have set LOG_GPS_NMEA_DATA 1 and LOG_GPS_PARSED_DATA 0 I think the NMEA GPS logging was stopping after a short period because of the G...

Where are you putting the code to write 0902 to ask for the VIN? Are you putting it in OBD.h or OBD.cpp? I'm trying to get the VIN myself, would you be willing to share the code snippet please? I tried adding a definition to OBD.h like this: #define PID_VIN 0x02 .. but I can't see how the mode is de...