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  1. #1
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    Advice on IOCards for PSX/PSXseecon

    Hello,

    I'm getting back into simming after a long break, and am currently using PSX with a USB Yoke/pedals and throttle quadrant. Many moons ago I started to develop my own hardware/software solution to interface switches and displays, but life intervened and I just don't have the kind of time needed for developing a solution from scratch. I'm intrigued by IOCards, and your library of PSX functions for SIOC, and am about ready to pull the trigger on an initial IOCards order.

    My question (finally <G>) is: what is the baseline order of IOCards I will need to start, given that I am going to begin with the MCP and EFIS? It looks like I will need (plus actual hardware):

    - Master Card
    - USB expansion Card
    - Input + encoders Card
    - Displays II Card
    - PCB holders (two 3s, and two 5s)
    - Display card cable
    - Parallel cable

    Does this seem about right? What are people using for a power source? Any tips or guidance appreciated!

    Thanks,

    Scott

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    Re: Advice on IOCards for PSX/PSXseecon

    Hi Scott,

    Some comments:

    If you use the right kind of rotary encoder you do not need the encoders card (recommended)
    You will need more than one Display card to cover the MCP I'd think. A card supports 16 7 segment digits. Actually 15 if you want to dim digits.
    You do not need a parallel cable.
    You may need break out boxed for inputs and outputs, for easy wiring.

    +5V and Gnd can easily be taken from a spare molex in a PC.

    Regards,
    Nico

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    Re: Advice on IOCards for PSX/PSXseecon

    Hi Nico,

    Thank you for the fast response!

    Can you expand a bit regarding the encoders - what do you mean by "right kind" of encoder? I do see that the OpenCockpits gray code pushbutton + rotaries contain a note saying they connect directly to the Master card - is that what you mean?

    The MCP requires 3 digits for IAS/Mach, 3 digits for HDG, 5 digits for V/S, and 5 digits for ALT = 16 digits, no? The Master card can handle the LEDs, correct?

    How does the Master card connect to the USB expansion card? The docs suggest via a M-F DB25 cable...

    I have a lot of breakout posts from my early days of building interfaces for FSX - those should come in handy

    Thanks again for your help!

    Scott

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    Re: Advice on IOCards for PSX/PSXseecon

    Quote Originally Posted by petdocvmd View Post
    Can you expand a bit regarding the encoders - what do you mean by "right kind" of encoder? I do see that the OpenCockpits gray code pushbutton + rotaries contain a note saying they connect directly to the Master card - is that what you mean?
    Indeed, they are coded CTS288 I believe.

    How does the Master card connect to the USB expansion card? The docs suggest via a M-F DB25 cable...
    With a flat cable that comes with the card.

    Quote Originally Posted by petdocvmd View Post
    The MCP requires 3 digits for IAS/Mach, 3 digits for HDG, 5 digits for V/S, and 5 digits for ALT = 16 digits, no? The Master card can handle the LEDs, correct?
    Yes and Yes.
    However if you want to be able to dim your digits you have one position short, and you will need another Display2 card.

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    Re: Advice on IOCards for PSX/PSXseecon

    Thanks so much for your help!