Freematics Forum

Hello,
Anyone have any examples on how to sniff CAN bus using 'OBD-II UART Adapter V2.1 (for Arduino)' and OBD2UART.h lib?

I'm trying to figure out if I can sniff out broadcast PIDs with this HW/SW. Has anyone had any success?


Thanks,

Paul

Hi,
Can the "Freematics ONE+ Model B" be used to talk to an Arduino using serial port or....

Do I need to stick with something like "Freematics OBD-II UART Adapter V2.1"?

I'm trying to find the latest/fastest solution that will talk with external Arduino over serial connection....

Thanks,
Paul

Hi, any chance you guys could share on how/where you set datamode for custom PIDs?

Still no one has any good examples of how/where to set dataMode?

Hi,
Using Freematics OBD-II UART Adapter V2.1 on Arduino reading a GM vehicle...

The baro PID; 0x33 is returning the number "45". I was expecting something like 101 (kpa) for sea level.

Anyone else run into that? I've been searching for alternate PID for GM baro but no luck. Can't tell if I'm not ...

Bump

Hi,
probably a real noob question but....Can anyone give me some pointers (tools/docs) on how to use Freematics/obd2 library to query other modes other than mode 1? I'm trying to query various GM specific PIDs...

TIA,
Paul

Thank you.

Paul

Hi,
I have the OBD-II adapter 2.1...Even after I shut off the car and disconnect the Arduino power, the adapter remains up and running.
Is it possible to power it off so it doesn't drain the car battery?

Thanks,
Paul