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IndustryArena Forum > CNC Electronics > CNC Machine Related Electronics > Looking for a hobby digital test board with switches, leds and analog output
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  1. #1
    Join Date
    Jun 2009
    Posts
    35

    Looking for a hobby digital test board with switches, leds and analog output

    Hello,

    I'm looking for a specific product, and I have a hunch it might be out there already.

    Specifically, I want to have a generic project box that has roughly 8 toggle buttons or switches and has a DB25 connector on it. Ideally I can put 24 volts in and the output are 24 volts. Also, if it had some LEDs on it to indicate the state of the switches, that would be ideal. Also, if there was a -10 to +10 or -5 to +5 analog output merely powered by the same 24 volts that would be amazing. I think that there has to be a hobby box out there there is roughly close to this.

    Any thoughts?

    Matt
    Matt Adams - Motion Control Application Engineer
    IMAC Motion Control - Elgin, IL

  2. #2
    Join Date
    Dec 2003
    Posts
    24260
    I have made my own up, I suspect it may be easier/cheaper to make your own.
    I used small toggle switches that had centre off, one way was momentary to simulate P.B.'s and the other maintained to simulate function switch if needed.
    You did not specify what kind of output you require, I am assuming you want 5v in and 24vdc out?
    If so a ULN2803 or similar should work.
    For the ±10vdc I have used a battery box, but to integrate it into a unit there are voltage converters on one chip such as the ICL7662 that will give you ±vdc and use a 5k~10k pot. to give you variable analogue.
    I would be surprised if there is an off-the-shelf unit exactly like that.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

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