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Thread: USB Car Controller

  1. #11
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    phidgets would do the trick they are redicuolsly expensive for my liking (im a student), also this way i can make it exactally how i want!

    The main reason i chose this over a PIC with USB on it already, is i wanted something that would be pretty quick to develop, I really didnt want the hassle of programming the USB code, coz it doesnt sound like fun and i didnt want to write my own drivers for PC.

    How easy would this be to program in delphi?
    Im not sure wot you mean by this, but the PIC is programmed in C. However if you are talking about the frontend for this, then you could write that in anything as long as it can access a com port (which is wot the computer sees)

  2. #12
    My Village Called 0l33l's Avatar
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    Quote Originally Posted by Pilt
    phidgets would do the trick they are redicuolsly expensive for my liking (im a student), also this way i can make it exactally how i want!

    The main reason i chose this over a PIC with USB on it already, is i wanted something that would be pretty quick to develop, I really didnt want the hassle of programming the USB code, coz it doesnt sound like fun and i didnt want to write my own drivers for PC.

    Im not sure wot you mean by this, but the PIC is programmed in C. However if you are talking about the frontend for this, then you could write that in anything as long as it can access a com port (which is wot the computer sees)
    I'm also a student
    So let me get this straight: this has 16 inputs and 16 outputs? What kind of inputs? Is PIC programming necessary? Why?

  3. #13
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    Quote Originally Posted by 0l33l
    I'm also a student
    So let me get this straight: this has 16 inputs and 16 outputs? What kind of inputs? Is PIC programming necessary? Why?

    16 relay outputs, 1 RPM input (from TDC/crankshaft sensor), 3 servo outputs, and the rest can be whatever (nitrous), inputs or outputs
    (cant be bothered to count the ones left but its about another 10 -14)

    No the thing comes with code but i will be modifying it to have more functions, then if you wanted to use those mods you would just get a file off me and upload it to the thing using a program made by the company who makes it, thats why its good coz its easy to reprogram, coz i dont want to buy a programmer

  4. #14
    FLAC alti's Avatar
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    Did you check WalMart I think they had programmers on sale this week. (just kidding) Anyway I think it is a get idea and A good peice of hardware to work with specially since it is half the price of most of the other relay boards. good luck with your project!

    Does anyone have this board already in use? Which funtions are you going to have to add? anything like the tach and ac controlls that is not just a simple on-off pulse?
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  5. #15
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    Quote Originally Posted by alti
    Did you check WalMart I think they had programmers on sale this week. (just kidding) Anyway I think it is a get idea and A good peice of hardware to work with specially since it is half the price of most of the other relay boards. good luck with your project!

    Does anyone have this board already in use? Which funtions are you going to have to add? anything like the tach and ac controlls that is not just a simple on-off pulse?
    Well unfortunatly the nearest wallmart to me is about 2000 miles away, and to be honest i really cant be bothered to get off my lazy backside to make the trip there.

    Well the thing as standard has 5 A/D inputs and 8 relay outputs, so for the first board i design i will use just these, so people who dont want other features can make it.

    The functions that need adding will be the Tach and the Servo control but i have C code for this its just a case of adding it to the current code, but i still need to get one of these things!

  6. #16
    Maximum Bitrate kiltjim's Avatar
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    Maybe its just me, and maybe I need a slap upside the head, but I can not for the life of me find where to buy the thing and get a price.

    For the $50 listed, it looks like (from the description at least) it is just a programmer for the microcontroller, not the whole system. Am I reading it wrong?

    For $50, is it the whole thing? Out of the box I will have everything I need to get started (with the exception of the sensors, and relays and other goodies)?
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  7. #17
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    http://www.mouser.com/index.cfm?hand..._pcodeid=62603

    Out of the box you basically get a PIC whose outputs you can control via USB, if you want to use it with relays you would need a ULN2803 to drive them coz the pic cannot provide enough current.

    You would also possibly need some filtering/amplifying circuits for the A/D but that really depends on the application

    With this device you dont even need a powersupply circuit as its powered via USB!

  8. #18
    Maximum Bitrate kiltjim's Avatar
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    So whats the difference between the one that ends in PBX, and the ones that end in M/ML? I don't see any listing about having a bootloader, but I don't know much about microcontrollers. Do I need this?

    What does having the bootloader built-in do for me? Does this mean that I would be able to basically program it in place? And if so, what would I need to program the cheaper ones?
    2000 Subaru OBS

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  9. #19
    Maximum Bitrate kiltjim's Avatar
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    Nevermind. I'm a moron. I figured it out. The $35 versions don't have the microcontroller on them. Gotcha. I flame myself here ->
    2000 Subaru OBS

    Dell P3 @ 900 Mhz
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    80GB External HD

    I am Zero Bitrate....

  10. #20
    Raw Wave rando's Avatar
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    Quote Originally Posted by Pilt
    The main reason i chose this over a PIC with USB on it already, is i wanted something that would be pretty quick to develop, I really didnt want the hassle of programming the USB code, coz it doesnt sound like fun and i didnt want to write my own drivers for PC.
    This kit just provides a bootloader and an integrated USB->RS232 dongle so it looks like a COM port to your PC. Microchip has posted demo code on their website to implement both of these capabilities. You'd just need to relocate their USB code and your code to work with the bootloader and play nicely together. That's more or less the same thing you'll be doing with the board you picked -- if you try to change the firmware.

    In all the strait PIC solution will be a bit more complicated, but not terribly so. You might also have to borrow or build a programmer to flash the PIC with a bootloader the first time.

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