Freematics Forum

I tried that code a long while ago. Never got it working well enough. I'm probably not smart enough to know where I went wrong lol. I hope the rinky dink website doesn't go down anytime soon.

What year/model car are you polling? Older care are always just plain slower. 400ms isn't an abnormal return time for a single PID from an early 2000s car. Even some later 2000s cars. The chip used by the freematics unit is the same as the sparkfun (ELM327 IIRC). So the commands should be available....

What about digital inputs?

Yea it should definitely work on those other cars.

Have you tried manually setting the protocol? By default it's 0 which says "auto select" but on my subaru, I had success manually selecting the right protocol (4 I think?).

Mostly bmws and subarus. The oldest was a 99 3 series. You might want to google around for others that have gotten the opel working with the ELM327. It's likely just figuring out what the best init commands are.

Have you uploaded all of the latest code to your arduino? I believe Stanley made a few updates that helps connect to older protocols. By default, the ELM327 chip (the OBD2 chip in the freematics unit) is told to auto select a protocol. It does look like 9141 is supported. I've had trouble on older c...

Year/make/model of the cars would be useful too. Anything 2005 and before will poll pretty slowly. Even then, you don't get "good" polls until 2012+. Depending on the frequency you want, the sheer number of PIDs will slow things down.

To cover stuff, do you plug in before you start the car, with the car on, or with the car running? I plugged into a 2016 VW diesel just fine with my megaloggerhd. My code is pretty heavily modified but the protocol autoselect should be fine. Did you change code right out of the box or are you using ...

Oh sorry I didn't know you were talking about the emulator. I don't know anything about that.