//Given 1022, we display "10:22"
//Each digit is displayed for ~2000us, and cycles through the 4 digits
//After running through the 4 numbers, the display is turned off
void SevSeg::DisplayNumber(int toDisplay, byte DecPlace){
//For the purpose of this code, digit = 1 is the left most digit, digit = 4 is the right most digit
//If the number received is negative, set the flag and make the number positive
boolean negative = false;
if (toDisplay < 0) {
negative = true;
toDisplay = toDisplay * -1;
}
for(byte digit = numberOfDigits ; digit > 0 ; digit--) {
//Turn on a digit for a short amount of time
switch(digit) {
case 1:
digitalWrite(digit1, DigitOn);
break;
case 2:
digitalWrite(digit2, DigitOn);
break;
case 3:
digitalWrite(digit3, DigitOn);
break;
case 4:
digitalWrite(digit4, DigitOn);
break;
//This only currently works for 4 digits
}
if(toDisplay > 0) //The if(toDisplay>0) trick removes the leading zeros
lightNumber(toDisplay % 10); //Now display this digit
else if(negative == true) { //Special case of negative sign out in front
lightNumber(DASH);
negative = false; //Now mark negative sign as false so we don't display it multiple times
}
//Service the decimal point
if(DecPlace == digit)
lightNumber(DP);
toDisplay /= 10;
delayMicroseconds(2000); //Display this digit for a fraction of a second (between 1us and 5000us, 500-2000 is pretty good)
//If you set this too long, the display will start to flicker. Set it to 25000 for some fun.
//Turn off all segments
lightNumber(BLANK);
//Turn off all digits
digitalWrite(digit1, DigitOff);
digitalWrite(digit2, DigitOff);
digitalWrite(digit3, DigitOff);
digitalWrite(digit4, DigitOff);
}
}
void segmentDisplay::displayNumber(int number)
{
#define DISPLAY_BRIGHTNESS 5000
#define DIGIT_ON HIGH
#define DIGIT_OFF LOW
pinMode(segA, OUTPUT);
pinMode(segB, OUTPUT);
pinMode(segC, OUTPUT);
pinMode(segD, OUTPUT);
pinMode(segE, OUTPUT);
pinMode(segF, OUTPUT);
pinMode(segG, OUTPUT);
pinMode(digit1, OUTPUT);
pinMode(digit2, OUTPUT);
pinMode(digit3, OUTPUT);
pinMode(digit4, OUTPUT);
for (int digit = 4; digit > 0; digit--) {
//Turn on a digit for a short amount of time
switch (digit) {
case 1:
digitalWrite(digit1, DIGIT_ON);
break;
case 2:
digitalWrite(digit2, DIGIT_ON);
break;
case 3:
digitalWrite(digit3, DIGIT_ON);
break;
case 4:
digitalWrite(digit4, DIGIT_ON);
break;
}
//Turn on the right segments for this digit
lightNumber(number%10);
number /= 10;
delayMicroseconds(DISPLAY_BRIGHTNESS);
//Display digit for fraction of a second (1us to 5000us, 500 is pretty good)
//Turn off all segments
lightNumber(10);
//Turn off all digits
digitalWrite(digit1, DIGIT_OFF);
digitalWrite(digit2, DIGIT_OFF);
digitalWrite(digit3, DIGIT_OFF);
digitalWrite(digit4, DIGIT_OFF);
}
}
