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Thread: STN1110 OBD to UART interpreter IC (ELM327 compatible)

  1. #1
    VENDOR - ScanTool Vitaliy's Avatar
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    Lightbulb STN1110 OBD to UART interpreter IC (ELM327 compatible)

    MP3Car forum members can get free samples here:

    http://www.scantool.net/scan-tools/ics/stn1110.html

    Enter "MP1010" discount code at the checkout.

    Notes:

    - You can order up to three free samples
    - You can mix packages, for example you can order one of each of PDIP, SOIC, and QFN
    - Allow one week for delivery (we'll ship faster if we can)



    STN1110 Datasheet
    STN1100 Family Reference and Programming Manual
    OBDLink MX: world's smallest, fastest, most advanced OBD/Bluetooth adapter with SW and MS CAN support. Read the review to learn more.
    Need to look up a diagnostic trouble code? Try the most up-to-date, free DTCsearch.com!

    You cannot send me a private message using this forum. Use my email instead: vitaliy[@]scantool.net.

  2. #2
    VENDOR - ScanTool Vitaliy's Avatar
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    It was brought to my attention that the code wasn't working. It's been fixed, sorry for the inconvenience.
    OBDLink MX: world's smallest, fastest, most advanced OBD/Bluetooth adapter with SW and MS CAN support. Read the review to learn more.
    Need to look up a diagnostic trouble code? Try the most up-to-date, free DTCsearch.com!

    You cannot send me a private message using this forum. Use my email instead: vitaliy[@]scantool.net.

  3. #3
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    I'm very interested about this.
    Is it possible to setup 95kbit CANBUS data rate with this IC?

  4. #4
    VENDOR - ScanTool Vitaliy's Avatar
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    Quote Originally Posted by ma_jk View Post
    I'm very interested about this.
    Is it possible to setup 95kbit CANBUS data rate with this IC?
    You can use the STPBR (set Protocol BaudRate) command, like this:

    STPBR 95000

    However, since it is not a standard baud rate, it will actually be set to 90909.

    If you don't mind me asking, why do you need 95 kbps CAN?

    Vitaliy
    OBDLink MX: world's smallest, fastest, most advanced OBD/Bluetooth adapter with SW and MS CAN support. Read the review to learn more.
    Need to look up a diagnostic trouble code? Try the most up-to-date, free DTCsearch.com!

    You cannot send me a private message using this forum. Use my email instead: vitaliy[@]scantool.net.

  5. #5
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    Hi Vitaliy,
    i have to connect to MSCAN bus on a Opel/Vauxhall, which is very picky about data rates; im afraid 90kbit wont work.
    So its a no go?

  6. #6
    VENDOR - ScanTool Vitaliy's Avatar
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    We're considering adding commands to give users direct access to the CAN configuration registers. It will be some time before they are implemented, however, since there is a backlog of other features that we're working on.

    Of course, if this is a high-volume project and you're willing to pay to bump this feature to the top of the list, it can be done next week.
    OBDLink MX: world's smallest, fastest, most advanced OBD/Bluetooth adapter with SW and MS CAN support. Read the review to learn more.
    Need to look up a diagnostic trouble code? Try the most up-to-date, free DTCsearch.com!

    You cannot send me a private message using this forum. Use my email instead: vitaliy[@]scantool.net.

  7. #7
    SuperMod - OBDII GPS Logger forum
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    I'm investigating [again] the possibility of some-kind-of-sheeva-plug-like-thing with one of these on-board.

    Specifically, I've discovered that my new bike has OBDII, and that obdgpslogger works with it.

    I'm massively incompetent when it comes to raw hardware. Fully aware that I seem ignorant as all hell, is there any teensy form factor board [like a beagle board, sheeva plug, something like that] that comes with ... just a socket on it, that this fits into and magically works with?

    I have at least a couple other folks who are now pinging me because they have similar bikes to me and are enticed by the idea of using my software

    I'd love to order one of the free samples above [and probably will do!], but I feel it's just wasteful until I can actually plug it into something.

    Suggestions would be greatly appreciated,
    Gary (-;
    OBDGPSLogger, for logging OBDII and/or GPS data
    OBDSim, an OBDII/ELM327 software simulator
    mp3car forums: obdgpslogger, obdsim

  8. #8
    VENDOR - ScanTool Vitaliy's Avatar
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    Gary,

    You would need to add at least a dozen other components to make the STN1110 work with a micro PC. We have a module built around STN1110's cousin, which includes all OBD drivers on-board, it's called microOBD 200:



    It's intended for rapid prototyping/"proof of concept" developement and, unlike the STN1110, is not cheap, but we can send you a couple of free units if you can find someone who has the skills to hep you wire it up, and post a description of your finished project online.

    By the way, it may be easier (and cheaper) to interface the sheeva plug to OBDLink SX or OBDLink S.

    Best regards,

    Vitaliy
    OBDLink MX: world's smallest, fastest, most advanced OBD/Bluetooth adapter with SW and MS CAN support. Read the review to learn more.
    Need to look up a diagnostic trouble code? Try the most up-to-date, free DTCsearch.com!

    You cannot send me a private message using this forum. Use my email instead: vitaliy[@]scantool.net.

  9. #9
    SuperMod - OBDII GPS Logger forum
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    The microOBD would also work great for me [probably much better, in fact] - whatever it takes to simply Do What I Want(TM) is ideal, really.

    I was looking at using existing dongles - basically, my current getup. The following problems arose:

    1) My bike doesn't have much space. And by "not having much space", I mean the cable from the obdII port to the dongle is taking up a significant amount of what's available. There literally isn't enough space for a sheeva, and a dongle, and the bike's toolkit, under the seat. Just the size of the part of the cable that plugs into the OBDII port is big enough to be a problem putting the seat down unless I arrange things just so.

    1a) Today I rode into work with my bluetooth OBDLink under the seat. There's not enough space under there to fit anything more, so I had a laptop in my backpack.

    2) Power. Bike batteries make car batteries look like power behemouths. I need the whole getup to be *off* when the ignition isn't on. Not just "in super low power sleep mode", but actually off. My current dongle of choice is the OBDLink Bluetooth - it's perfect in my car, but the juice it drinks while the bike is off just can't cut it.

    2a) The idea of having the OBDII device itself on the board is intuitively appealing for power reasons. The board powers the OBDII device, so when the board is out, there's really zero electricities moving around at all.

    2b) I may be completely wrong, and modern OBDLink devices may truly drink almost nothing in low power sleep mode. I'm just afraid because of how gimpy my bike battery is.

    Any ideas?

    Would the microOBD 200 go cleanly into an IGEPv2, BeagleBoard, or similar? I'm not afraid of a soldering iron, but I wouldn't even know what parts to go shopping for to make these guys fit together correctly.

    Gary (-;
    OBDGPSLogger, for logging OBDII and/or GPS data
    OBDSim, an OBDII/ELM327 software simulator
    mp3car forums: obdgpslogger, obdsim

  10. #10
    VENDOR - ScanTool Vitaliy's Avatar
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    Gary,

    If space is an issue, you can take OBDLink out of its case and solder wires to it. In sleep mode, the latest gen of OBDLinks consumes less than 1 mA of current: basically zero for most intents and purposes. When the chip goes to sleep, it uses an electronic "kill switch" to cut power to all peripherals. Unless you plan to park your bike for a year, I wouldn't worry about it.

    OBDLink makes a lot more sense versus the microOBD for this project: there are no additional components to buy, and you can also hook it up to the same switched power as your sheeva plug, if you are still worried about current consumption.

    Best regards,

    Vitaliy
    OBDLink MX: world's smallest, fastest, most advanced OBD/Bluetooth adapter with SW and MS CAN support. Read the review to learn more.
    Need to look up a diagnostic trouble code? Try the most up-to-date, free DTCsearch.com!

    You cannot send me a private message using this forum. Use my email instead: vitaliy[@]scantool.net.

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