OBD-2 Input to the PIC

[oslinux]

Ok, but they are simple pics from microchip, right?

so there's a way to code a software for a pic to do that,

anyway, with that chip i can use all of the function of OBD?

i can use the normal software for linux or windows that works with the serial obd?

thank you!

Luca

[DynamoBen]

Ok, but they are simple pics from microchip, right?
so there's a way to code a software for a pic to do that...

True they are just pics with code. You're welcome to spend the hundreds of dollars to buy the SAE standards, and then hours and hours creating code. I can say from personal expirence its a major task. I found that spending $14 on a device the handles all the communications was money well spent. Plus by changing Elm chips I can "talk" to different cars without rewriting my code.

with that chip i can use all of the function of OBD?

Depends what you mean. The product was designed to be an ODBII diagnostics tool. With the chip you will get all the normal engine data and diagnostic codes. The following site has some more information about the chip plus some free software and schematics. http://scantool.net/

i can use the normal software for linux or windows that works with the serial obd?

Not sure what you mean. If you're asking if you can tie your computer directly to the OBD buss the answer is no. There are currently 4 OBDII communications protocols all with very different communications methods but none are RS232 or TTL.

[oslinux]

True they are just pics with code. You're welcome to spend the hundreds of dollars to buy the SAE standards, and then hours and hours creating code. I can say from personal expirence its a major task. I found that spending $14 on a device the handles all the communications was money well spent. Plus by changing Elm chips I can "talk" to different cars without rewriting my code.

Ehhmmmmm... i guess you're right!

Depends what you mean. The product was designed to be an ODBII diagnostics tool. With the chip you will get all the normal engine data and diagnostic codes. The following site has some more information about the chip plus some free software and schematics. http://scantool.net/

Ok.

Not sure what you mean. If you're asking if you can tie your computer directly to the OBD buss the answer is no. There are currently 4 OBDII communications protocols all with very different communications methods but none are RS232 or TTL.

No, i meant "I can connect the serial output from the elm chip to a PC and then use a standard software for obd over serial to read the data?"

thank you for your help!

Luca

[DynamoBen]

No, i meant "I can connect the serial output from the elm chip to a PC and then use a standard software for obd over serial to read the data?"

Yes, the chip is designed to be used with something as simple as hyperterminal. No special software required.

[skimask]

Yes, the chip is designed to be used with something as simple as hyperterminal. No special software required.

I'm using an ELM327, got a few PCBs I designed on the way. Chip works like a champ and the 'shareware' that's out there works great too. Lots of software to choose from, just have to pick whichever one fits your wants/needs.

[Ioannis]

Can one use the OBD-II to, say, lock or unclock the doors, or open - close the windows or control other electric devices?

Ioannis

[Archangel]

Can one use the OBD-II to, say, lock or unclock the doors, or open - close the windows or control other electric devices?

Ioannis

The only tester I've seen which will do all that is the Star tester ford uses, only $3500 or so, My MT2500 won't do all that, at least with the older software I have, maybe the newest updated . . . I doubt it though.

[DynamoBen]

Can one use the OBD-II to, say, lock or unclock the doors, or open - close the windows or control other electric devices?

Ioannis

I recently helped another forum member create such a project, use the search above.

This kind of info's are well kept secrets and are different for each type of car. I will try to find that guy that had the alarm systems. Are interested in a specific car to look?

It’s not really, if you have a copy of the standard its in there. If you're creative you could hook up the Elm device to the car and start capturing codes.

BTW if you email Elm they will tell you that they don't support this type of interaction. That being said I've seen it done and it works, you really have to educate yourself on how the standard works and the different settings in the Elm chip.