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Magister · 09-16-2008, 02:13 PM

Code is in the "trunk" on the google project webpage, enjoy

opengauge - Google Code

My car seems to use protocol 6, CAN 11 bit 500KBaud.

For your speed problem I don't know, by default the timeout on the ELM is 20 seconds or something like this and it sends a '?'.

I use a string like "0101\r" and send it in a while() loop and serialWrite(), take a look at the code. There is no tricky part, I don't use timers, I just read/write in the serial port.

BTW I did all the programmation of the ELM327 using their spec available in the ELM327DS.pdf file.

EDIT: to convert the hex in num, I use strtoul(). Also I kept the ELM at 9600 bauds, I don't want to flood my CAN bus, and I don't need to get more than 10 PIDs per second anyway.

09-16-2008, 02:13 PM	#208 (permalink)
Magister OBDuino coder Join Date: Jun 2008 Location: Montréal, QC Posts: 212 Titine - '13 Hyundai Sonata Hybrid Thanks: 3 Thanked 10 Times in 8 Posts	Code is in the "trunk" on the google project webpage, enjoy opengauge - Google Code My car seems to use protocol 6, CAN 11 bit 500KBaud. For your speed problem I don't know, by default the timeout on the ELM is 20 seconds or something like this and it sends a '?'. I use a string like "0101\r" and send it in a while() loop and serialWrite(), take a look at the code. There is no tricky part, I don't use timers, I just read/write in the serial port. BTW I did all the programmation of the ELM327 using their spec available in the ELM327DS.pdf file. EDIT: to convert the hex in num, I use strtoul(). Also I kept the ELM at 9600 bauds, I don't want to flood my CAN bus, and I don't need to get more than 10 PIDs per second anyway. __________________ 2013 Hyundai Sonata Hybrid