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  1. #1
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    brianwilliamson's Avatar
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    Arduino voltage indicator

    I have been trying to find out how switch the colon on, but so far no luck anywhere.
    If someone has a clue how to do this, I would be most grateful .

    Here is the code so far :

    //To display 28.3v___needs colon installed
    //Using 7segments x4 & 1637 arduino UNO

    #include <Arduino.h>
    #include <TM1637Display.h>
    // Module connection pins (Digital Pins)
    #define CLK 2
    #define DIO 3
    // The amount of time (in milliseconds) between tests
    //#define TEST_DELAY 2000
    const uint8_t SEG_DONE[] = {
    SEG_A | SEG_B | SEG_G | SEG_E | SEG_D, //2
    SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F | SEG_G, // 8
    SEG_A | SEG_B | SEG_C | SEG_D | SEG_G, // 3
    SEG_E |SEG_D | SEG_C // v
    };
    TM1637Display display(CLK, DIO);
    void setup()
    {
    }
    void loop()
    {
    int k;
    uint8_t data[] = { 0xff, 0xff, 0xff, 0xff };
    display.setBrightness(0x0f);
    // On/Off test
    for(k = 0; k < 1; k++) {
    display.setBrightness(2, false); // Turn off
    display.setSegments(data);
    display.setBrightness(2, true); // Turn on
    display.setSegments(data);

    }
    // Done!
    display.setSegments(SEG_DONE);
    while(1);
    }
    //***************************************************

    Regards..............Brian W.
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    Last edited by brianwilliamson; 05-15-2018 at 02:18 AM. Reason: pic

  2. #2
    500+ This must be a daytime job



    Join Date
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    Re: Arduino voltage indicator

    Brian,
    Not familiar with Arduino code. Dont you just need to connect the dp to an output and then pull it high when
    wanting to display it.
    Les