Freematics Forum

For those of you with a GStar R-15E module, be advised that there are 2 jumpers to regulate the input volgage : 3.3V and 5V. Mine came in with 5V shorted and 3.3V open but the Freematics board gives me 3.3V between GCC and Ground. I'm going to switch the jumper position to confirm but I think it may...

Well, after a bit of tinkering and reorganizing, I decided to actually build a simpler version of the data logger firmware. Not that there's anything wrong with the Stanley's code mind you... but I needed something simpler, with a different file format in the output and had no need of the OBD/CAN pa...

Still... making more progress. I found that the OBD Init loop was caused by low voltage. Powering the logger with 16v on the OBD power (pins 16 and 4) works a treat. Now I have another problem. I cant seem to get the file system right on the SD card. I either get corrupt files or a single file calle...

Ok.. after a bit more tinkering, I've been able to view the debug info in VERBOSE mode using a CC2450 USB Dongle and connecting to the BTLE module. Still having the same issue however, looping at the OBD init step. Can I power the Logger by giving it 12v on pins 16 and 4 of the OBD connector ? If th...

Hi all, I've been playing around with my data loggers for a few days but have had a hard time getting anything logged. Out of desperation, I've added a small routine do log the setup steps of the CBODLogger class into a file on the SD card. I can confirm that the SD card works at this point as my lo...