Spare Inputs on Clock?

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  • September 26, 2013 at 3:03 pm #20261
    idreamincode
    Participant

    I’m looking at purchasing a Evil Mad Scientist Clock and was wondering if there are spare inputs that could be used by external source triggering.

    I’m not actually looking to use this as a clock, but more for a remote display. If it was not possible to have an extra input, would I just not solder in the function buttons to use as external wires in their place?
    If that doesn’t work, I’m thinking of using a 2nd Arduino to just feed serial data to the clock, but that seems redundant.
    Thanks for the support.
    September 26, 2013 at 3:11 pm #21475
    Windell Oskay
    Keymaster

    Hi idreamincode, 

    I suspect that you’re asking about the Alpha Clock Five, not the Bulbdial. ;)
    There’s no obligation whatsoever to use it as a clock.  You can feed serial data to the clock using a USB-TTL cable, or another Arduino, or use the available spare I/O pins any way that you like.  The current version of Alpha Clock Five has 9 (if i counted correctly) spare I/O pins that can be used as inputs, not counting the two pins that go to the second serial port.
    I hope that this answers your question; if not, please let me know how I can help. :D
    September 26, 2013 at 3:45 pm #21476
    idreamincode
    Participant

    Yes! That is exactly what I’m looking for, the Alpha Clock Five. Sorry if I posted this in the wrong forum.

    Looking forward to getting my hands on one of these. Very exciting.
    October 30, 2013 at 3:06 pm #21477
    idreamincode
    Participant

    I’m looking to use PC5, input #27 (according to the PDF file). When I code in this:


    int a5ExternalInputPC5 = 27; // external inputs

    setup{
      pinMode(a5ExternalInputPC5, INPUT);           // set pin to input
    }
    loop{
    externalInPC5 = digitalRead(a5ExternalInputPC5);   // read the input pin

          if(externalInPC5 == 1){
            Serial.println(“External PC5 Pressed”);
          }

    }

    It is showing as constantly being pressed. I don’t have anything connected to any of the PC5 or other extra ports.  Can you point me in the right direction?  Thanks.
    October 30, 2013 at 4:30 pm #21478
    idreamincode
    Participant

    I figured it out. Pin PC7 actually maps to input 23.

    Pinmap is from this site:
    October 30, 2013 at 7:40 pm #21479
    Windell Oskay
    Keymaster

    Sorry– didn’t see your message until you had already found the answer.  The “canonical” guide is the Sanguino:  http://sanguino.cc/hardware

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