Changing pins in arduino sketch

Forums General Questions and Comments Changing pins in arduino sketch

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  • #2207 Reply
    K. Schmidt

    I use an arduino uno and already worked with an alternative GUI.
    I use different pins for the valves, led, flash and shutter.

    How can i change the pins and still use your GUI to control my setup?

    Actually i use:
    pins 2-6 for valves
    flash 1-3 at pin 7-9
    cam trigger at pin 11
    (i don’t need focus triogger. Canon in use)
    pin 12: start-button
    pin 13: status led

    So please tell me, what do i have to change ?

    #2209 Reply

    Which GUI are you referring to, PC or Android?

    #2210 Reply
    K. Schmidt

    I want to use the PC GUI on Windows 10 and Windows Desktop PC and Vista Notebook

    #2211 Reply

    If you look inside the Arduino sketch (near the top) you will find where the pins are defined:
    // Pins
    const byte LED_WAITING = 2;
    const byte LED_ACTIVE = 3;

    const byte sol1_TriggerPin = 7;
    const byte sol2_TriggerPin = 8;
    const byte sol3_TriggerPin = 9;

    const byte sol4_TriggerPin = 4;
    const byte sol5_TriggerPin = 5;
    const byte sol6_TriggerPin = 6;

    const byte cam_TrigShutterPin = 10;
    const byte cam_TrigFocusPin = 11;
    const byte flash_TrigPin = 12;

    Just move these around to suit yourself.

    Above the pin definitions you should see:
    #include <SoftwareSerial.h>
    SoftwareSerial BTserial(14, 15); // RX, TX

    These are the pins used for the connection to the Bluetooth module. Pins 14 and 15 are AKA A0 and A1. Even if you do not use a Bluetooth module you should either:
    – not use these pins, or
    – move them to pins you are not using.

    Canon trigger. On my Canon, bulb only works if you activate both focus and shutter. I would recommend connecting the focus pin even if you don’t want to use it.

    • This reply was modified 2 years, 3 months ago by Martyn.
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