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Parallax components for ExpressPCB? — Parallax Forums

Parallax components for ExpressPCB?

Vern GranerVern Graner Posts: 337
edited 2005-07-24 20:13 in BASIC Stamp
Hi all, I was recently using the free schematic and PCB layout programs from ExpressPCB and noticed that some of the Parallax components are not present in their library. Does anyone have an additional library of components for this software for the following parts?
  • ULN2803 darlington driver array
  • PROP-1 Controller
  • BASIC Stamp Super Carrier Board
  • BASIC Stamp 2 Carrier Board
or other parts of the Parallax line? I've seen Parallax engineers post little schematic "snippets" onto the bottom of their, posts.. anyone know what do they use to draw these?

ADVthanskANCE! smile.gif

Vern

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Vern Graner CNE/CNA/SSE    | "If the network is down, then you're
Senior Systems Engineer    | obviously incompetent so why are we
Texas Information Services | paying you? Of course,if the network
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Comments

  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-07-21 19:19
    Vern,

    ·· I do have a BASIC Stamp part which I made myself.· Basically you can build your own components, which I have done for several things that aren't included.· Worst case scenario, you use the DIP socket for the part of the same size, and do it that way.· =)

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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • Vern GranerVern Graner Posts: 337
    edited 2005-07-21 19:30
    Chris Savage (Parallax) said...
    Vern,

    I do have a BASIC Stamp part which I made myself. Basically you can build your own components, which I have done for several things that aren't included. Worst case scenario, you use the DIP socket for the part of the same size, and do it that way. =)

    Ok, Necessity being a mother and all that.. here's the ULN2803 Darlington array in ExpressPCB format. Copy this into "C:\Program Files\ExpressPCB\SchComponents_Custom" to use. More to come as I make them... smile.gif

    Vern

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    Vern Graner CNE/CNA/SSE    | "If the network is down, then you're
Senior Systems Engineer    | obviously incompetent so why are we
Texas Information Services | paying you? Of course,if the network
http://www.txis.com        | is up, then we obviously don't need
Austin Office 512 328-8947 | you, so why are we paying you?" ©VLG
    s
    s
    ULN2803a High Voltage High Current Darlington Array.s
    3K
    ULN2803-picture.jpg
    600 x 469 - 25K
  • Vern GranerVern Graner Posts: 337
    edited 2005-07-21 21:52
    Ok, so here's my latest effort (since I've been building components today rather than building actual code or circuits!!) This is the ExpressPCB schematic component for the new Parallax EFX PROP-1 controller.

    smile.gif

    Vern

    (updated 5:24pm)

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    Vern Graner CNE/CNA/SSE    | "If the network is down, then you're
Senior Systems Engineer    | obviously incompetent so why are we
Texas Information Services | paying you? Of course,if the network
http://www.txis.com        | is up, then we obviously don't need
Austin Office 512 328-8947 | you, so why are we paying you?" ©VLG

    Post Edited (Vern) : 7/21/2005 10:25:14 PM GMT
    s
    s
    ParallaxEFX PROP-1-rb.s
    7K
    Parallax-Prop-1-rb.jpg
    600 x 469 - 37K
  • MacGeek117MacGeek117 Posts: 747
    edited 2005-07-22 02:25
    At least ExpressSCH has the BS1, BS2, BS2P40, and SX48BD!
    bugg

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    There are·3 kinds of people in the world,

    the dreamers, the do-ers, and the "Oh, what's this button do"-ers.
    Formerly bugg.
    www.parallax.com
    www.goldmine-elec.com
    www.expresspcb.com
    www.startrek.com


    Post Edited (RoboGeek) : 1/6/2006 1:58:02 AM GMT
  • knightofoldcodeknightofoldcode Posts: 233
    edited 2005-07-23 07:55
    I havn't had the time to do this, but it would be really slick if someone made a ExpressPCB layout or whatever they call it, of teh bs2OEM. The reason.... Sorry, Parallax, but seeing the price of the actual PIC, and the components used, my PCB space isn't worth that much, I'd much rather use just the PIC itself.

    If you created the supporting components, you could buy the BS2 PIC (the brains of it) for I think $9.00.

    So, for like, $15.00 you could have a BS2 on the board itself. Again, I havn't had a chance to recreate the bs2 OEM inside of ExpressPCB, once I do, I'll attach here, if no one gets to it before me. In fact I have some time, might do it now, dunno.

    Knight.
  • Philip GamblinPhilip Gamblin Posts: 202
    edited 2005-07-24 03:25
    While that is mostly true ($ 11) you don't have the programming interface, so you have to do the level translation from your 'puter (RS232 ) to Stamp (TTL) levels. I am planning a similar project but I have 2 OEM boards I plan to use as a programming platform. Once programmed, you can take the PIC with the programmed EEprom and shove them into a board with a resonator. I have made the assumption that the interpreter chip is programmed. Otherwise it would be useless to me. I just bought the pieces interpreter EEprom and resonator to attempt that very thing. I plan to build it on a breadboard proto board.

    Post Edited (Philip Gamblin) : 7/24/2005 4:50:42 AM GMT
  • knightofoldcodeknightofoldcode Posts: 233
    edited 2005-07-24 04:07
    Philip Gamblin said...
    While that is mostly true ($ 11) you don't have the programming interface, so you have to do the level translation from your 'puter (RS232 ) to Stamp (TTL) levels. I am planning a similar project but I have 2 OEM boards I plan to use as a programming platform. Once programmed, you can take the PIC with the programmed EEprom ahd shove them into a board with a resonator. I have made the assumption that the interpreter chip is programmed. Otherwise it would be useless to me. I just bought the pieces interpreter EEprom and resonator to attempt that very thing. I plan to build it on a breadboard proto board.

    Have you seen the BS2 OEM?

    I havn't seen an actual RS-232 translator chip on it, but it hooks into a PC.

    www.parallax.com/detail.asp?product_id=27291

    I intend on eventually, purchasing doulbe the number of EEProms I need for my application and simply switching them out when I need to reprogram it, so I'll socket the EEProm, and socket hte pic, but everything else won't be socketed, and I'll leave out the rs-232 stuff out of my design, however it still stands that it'd be slick to get ahold of a ExpressPCB layout of the BS2 OEM.

    Knight.
  • Philip GamblinPhilip Gamblin Posts: 202
    edited 2005-07-24 05:00
    Yes I have two of them. There are 3 transistors that do the level translation. Take a look at the schematic http://www.parallax.com/dl/docs/prod/schem/bs2oem.pdf
    There is also the issue of the·proper handling of the DTR/ATN line. None of which are insurmountable obstacles, but certainly worth consideration. Since the BS2 OEM is , I believe , on sale for $30, not a bad price for a "programming platform" which would also include your first EEprom and interpreter chip.

    Post Edited (Philip Gamblin) : 7/24/2005 5:14:58 PM GMT
  • knightofoldcodeknightofoldcode Posts: 233
    edited 2005-07-24 20:13
    Philip Gamblin said...
    Yes I have two of them. There are 3 transistors that do the level translation. Take a look at the schematic http://www.parallax.com/dl/docs/prod/schem/bs2oem.pdf
    There is also the issue of the proper handling of the DTR/ATN line. None of which are insurmountable obstacles, but certainly worth consideration. Since the BS2 OEM is , I believe , on sale for $30, not a bad price for a "programming platform" which would also include your first EEprom and interpreter chip.

    So you throw on the same components on the BS2 OEM, into your own PCB, and there you have all of the level translation, and everything that's needed for programming, as well as running it. So, you wouldn't have to have a programming platform, just create your own PCB project with the OEM board integrated, and pop in al the components, and you're done.
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