Hello is any very simple code that i coud start and stop program on tm1637 display stopwatch so if i woud press start button timer will start counting and if i press stop button timer will stop.
here is my program code
// DEFINES
// Macros to retrieve the fractional seconds and minute parts of a time
// supplied in ms
#define numberOfSeconds(_time_) ((_time_ / 1000) % 60)
#define numberOfMinutes(_time_) (((_time_ / 1000) / 60) % 60)
// INCLUDES
// https://github.com/avishorp/TM1637
#include <TM1637Display.h>
// CONSTANTS
const uint8_t OFF[] = {0, 0, 0, 0};
// In this library, the byte order is .GFEDCBA
const uint8_t PLAY[] = {B01110011, B00111000, B01011111, B01101110};
// GLOBALS
// Create a display object, specifying parameters (Clock pin, Data pin)
TM1637Display display(2, 3);
// 1000ms in 1sec, 60secs in 1min, 60mins in 1hr. So, 1000x60x60 = 3600000ms = 1hr
unsigned long timeLimit = 3600000;
void setup(){
Serial.begin(9600);
// Set brightness
display.setBrightness(0x0c);
// Clear the display
display.setSegments(OFF);
}
void countdown() {
// Calculate the time remaining
unsigned long timeRemaining = timeLimit + millis();
while(timeRemaining > 0) {
// To display the countdown in mm:ss format, separate the parts
int seconds = numberOfSeconds(timeRemaining);
int minutes = numberOfMinutes(timeRemaining);
// This displays the seconds in the last two places
display.showNumberDecEx(seconds, 0, true, 2, 2);
// Display the minutes in the first two places, with colon
display.showNumberDecEx(minutes, 0x80>>3, true, 2, 0);
// Update the time remaining
timeRemaining = timeLimit + millis();
}
}
void displayText() {
display.setSegments(PLAY);
delay(2000);
}
void loop(){
//displayText();
countdown();
}