Svenska ElektronikForumet

Kod: Markera allt

#include <Arduino.h>
#include <TM1637Display.h>
/*
  Pin outs:
    Pin 1 → Button for timer reset
    Pin 2 → TM1637 Clock
    Pin 3 → TM1637 Data
*/
#define BTN 1

// TM1637 Module connection pins (Digital Pins)
#define CLK 2
#define DIO 3

TM1637Display display(CLK, DIO);
unsigned long t_now;     // milliseconds
unsigned long t_now_old; // old milliseconds
int sek = 0;             // seconds
int mins = 0;            // minutes
int hours = 0;           // hours
bool tick = false;       // colon flag

void setup() {
  pinMode(BTN, INPUT);
  display.setBrightness(0x0a);    // set medium Brightness
  t_now_old = millis();           // store start "time"
  // void showNumberDec(int num, bool leading_zero = false, uint8_t length = 4, uint8_t pos = 0);
  display.showNumberDec(mins, true, 2, 0);  // initialize mins display
  display.showNumberDec(sek, true, 2, 2);   // initialize sec display
}

void loop() {
  t_now = millis();            // get current "time"
  if (t_now - t_now_old > 496)  // tic-tac each 1/2 sec
  {
    t_now_old = t_now;           // store new "time"
    display.setColon(tick);   // display colon

    if (tick)                 // colon ON = increment seconds
    {
      sek++;
      if (sek > 59)           // if 60 sec, increment minutes
      {
        sek = 0;
        mins++;
        if (mins > 59)        // if 60 minutes, increment hours
        {
          hours++;
          display.showNumberDec(hours, true, 2, 0);
          mins = 0;           // start from 00:00 again. May add here hour counter
        }
        display.showNumberDec(mins, true, 2, 2);
      }
      //display.showNumberDec(sek, true, 2, 2);
    }
    tick = !tick;             // toggle colon on/off
  }

  // Read Reset button
  if (digitalRead(BTN) == LOW) {
    hours = 0;
    display.showNumberDec(hours, true, 2, 0);
    mins =0;
    display.showNumberDec(mins, true, 2, 2);
    sek = 0;
  }
}