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Thread: CHEAP $15 OBD-II scanner!

  1. #1
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    CHEAP $15 OBD-II scanner!

    check out this from hackaday: http://www.hackaday.com/2007/11/07/i...d-2-interface/

    some guy built his own OBD-II scanner and shows you the basics on how to build it, or he can ship you a development board for around $6 (you still have to assemble however.)

  2. #2
    FLAC WuNgUn's Avatar
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    Cool...looks like you need to program the PIC though...

  3. #3
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    well you could if you want to, the software is available on the website above, but the gentleman is kind enough to offer pre programed chips also. i think its 8 dollars.

  4. #4
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    very interesting - it is actually http://www.obddiag.net/index.html . The website details everything very well. Should be very easy to get one up and running pretty quickly!

    I wonder what the difference is between this and a typical $100 ELM type OBD2 reader ?

    I am also curious what the refresh rate of this reader is ? Looks promising...

  5. #5
    Maximum Bitrate fixerofallthing's Avatar
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    I ordered one of these from this guy and it works great on most of the protocols. It is quick and accurate with all of the software he has linked on his site. I even tried it with some other software and it works. If anyone has specific questions about it I will try to answer.
    The Car 2005 Scion xB

    The Truck 2004 GMC Canyon

  6. #6
    MySQL Error MatrixPC's Avatar
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    Quote Originally Posted by fixerofallthing View Post
    I ordered one of these from this guy and it works great on most of the protocols. It is quick and accurate with all of the software he has linked on his site. I even tried it with some other software and it works. If anyone has specific questions about it I will try to answer.
    Does the kit include the OBD2 adapter or it is separate you have to order from mouser/digikey?
    I guess you have to email him for order cuz I can't find an order link.
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  7. #7
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    Quote Originally Posted by fixerofallthing View Post
    If anyone has specific questions about it I will try to answer.
    I just want to know what speed (refresh rate) are you getting ? i.e. if you are querying one sensor then how many times per second(Hz) does it refresh ?

  8. #8
    Maximum Bitrate fixerofallthing's Avatar
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    Quote Originally Posted by MatrixPC View Post
    Does the kit include the OBD2 adapter or it is separate you have to order from mouser/digikey?
    I guess you have to email him for order cuz I can't find an order link.
    I had to order the cable seperate. From the link on his site. I have been emailing him for quite awhile and when he was ready to sell the kit he emailed me to announce the availability.
    The Car 2005 Scion xB

    The Truck 2004 GMC Canyon

  9. #9
    Maximum Bitrate fixerofallthing's Avatar
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    Quote Originally Posted by It's A Honda View Post
    I just want to know what speed (refresh rate) are you getting ? i.e. if you are querying one sensor then how many times per second(Hz) does it refresh ?
    The different software allows you to query single or multiple PIDS. The fewer the PIDS the faster the refresh. If only one PID is selected then it is so fast it looks like real time changes, especially if you are looking at a PID that is easy to change like the TPS or RPM.
    The Car 2005 Scion xB

    The Truck 2004 GMC Canyon

  10. #10
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    its encouraging to know that it is fast but would you be able to give me an approximate number in hertz "Hz" or times per second ? You could give me an idea for either one pid or several pids.
    The thing is that I already have an interface and I need to log 4 pids at a time to make a timing map, and that interface doesn't refresh that fast, so the information you can provide will really help me determine if it would be worth the effort to go after this one or not.
    Thanks!

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