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digit_display_number.ino
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digit_display_number.ino
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// These are indexes into the groundPins array
//#define MIDDLE 0 // G
//#define UPPER_L 1 // F
//#define LOWER_L 2 // E
//#define BOTTOM 3 // D
//#define LOWER_R 4 // C
//#define UPPER_R 5 // B
//#define TOP 6 // A
#define TOP 0 // A
#define UPPER_R 1 // B
#define LOWER_R 2 // C
#define BOTTOM 3 // D
#define LOWER_L 4 // E
#define UPPER_L 5 // F
#define MIDDLE 6 // G
//int groundPins[7] = {2, 3, 4, 5, 6, 7, 8};
int groundPins[7] = {2, 3, 4, 5, 6, 7, 8};
int digitPins[4] = {9, 10, 11, 12}; // positive voltage supply for each of the 4 digits
int ON = HIGH;
int OFF = LOW;
int number[10][7]; // holds information about which segments are needed for each of the 10 numbers
int digit[4]; // holds values for each of the 4 display digits
int pirPin = 13;
int hits = 0;
unsigned long lasthit;
void setup()
{
Serial.begin(9600);
initNumber();
pinMode(pirPin, INPUT);
for(int i=0; i < 7; i++) {
pinMode(groundPins[i], OUTPUT);
digitalWrite(groundPins[i], HIGH);
}
for(int i=0; i < 4; i++) {
pinMode(digitPins[i], OUTPUT);
digitalWrite(digitPins[i], LOW);
}
lasthit = millis();
}
void loop() {
unsigned long time = millis() - lasthit;
int n = time / 1000;
// Serial.println("n: " + hits);
int pirVal = digitalRead(pirPin);
if (pirVal == LOW && n > 2) { //was motion detected
lasthit = millis();
Serial.println("Motion Detected");
hits++;
}
setDigit(hits);
for(int g=0; g < 7; g++) {
digitalWrite(groundPins[g], LOW);
for(int i=0; i < 4; i++) {
if (digit[i] < 0) {
continue;
}
digitalWrite(digitPins[i], number[digit[i]][g]);
}
delay(1);
digitalWrite(groundPins[g], HIGH);
}
}
void setDigit(int n) {
n = n % 2000;
digit[0] = n % 10;
digit[1] = (n / 10) % 10;
if ((digit[1] == 0) && (n < 10)) {
digit[1] = -1;
}
digit[2] = (n / 100) % 10;
if ((digit[2] == 0) && (n < 100)) {
digit[2] = -1;
}
digit[3] = (n / 1000) % 10;
if (digit[3] == 0) {
digit[3] = -1;
}
}
int getDelay() {
if (millis() > 10000) {
return 1;
} else {
return (int) (((10000 - millis()) / 10000.0) * 125);
}
}
void initNumber() {
number[0][MIDDLE] = OFF;
number[0][UPPER_L] = ON;
number[0][LOWER_L] = ON;
number[0][BOTTOM] = ON;
number[0][LOWER_R] = ON;
number[0][UPPER_R] = ON;
number[0][TOP] = ON;
number[1][MIDDLE] = OFF;
number[1][UPPER_L] = OFF;
number[1][LOWER_L] = OFF;
number[1][BOTTOM] = OFF;
number[1][LOWER_R] = ON;
number[1][UPPER_R] = ON;
number[1][TOP] = OFF;
number[2][MIDDLE] = ON;
number[2][UPPER_L] = OFF;
number[2][LOWER_L] = ON;
number[2][BOTTOM] = ON;
number[2][LOWER_R] = OFF;
number[2][UPPER_R] = ON;
number[2][TOP] = ON;
number[3][MIDDLE] = ON;
number[3][UPPER_L] = OFF;
number[3][LOWER_L] = OFF;
number[3][BOTTOM] = ON;
number[3][LOWER_R] = ON;
number[3][UPPER_R] = ON;
number[3][TOP] = ON;
number[4][MIDDLE] = ON;
number[4][UPPER_L] = ON;
number[4][LOWER_L] = OFF;
number[4][BOTTOM] = OFF;
number[4][LOWER_R] = ON;
number[4][UPPER_R] = ON;
number[4][TOP] = OFF;
number[5][MIDDLE] = ON;
number[5][UPPER_L] = ON;
number[5][LOWER_L] = OFF;
number[5][BOTTOM] = ON;
number[5][LOWER_R] = ON;
number[5][UPPER_R] = OFF;
number[5][TOP] = ON;
number[6][MIDDLE] = ON;
number[6][UPPER_L] = ON;
number[6][LOWER_L] = ON;
number[6][BOTTOM] = ON;
number[6][LOWER_R] = ON;
number[6][UPPER_R] = OFF;
number[6][TOP] = ON;
number[7][MIDDLE] = OFF;
number[7][UPPER_L] = OFF;
number[7][LOWER_L] = OFF;
number[7][BOTTOM] = OFF;
number[7][LOWER_R] = ON;
number[7][UPPER_R] = ON;
number[7][TOP] = ON;
number[8][MIDDLE] = ON;
number[8][UPPER_L] = ON;
number[8][LOWER_L] = ON;
number[8][BOTTOM] = ON;
number[8][LOWER_R] = ON;
number[8][UPPER_R] = ON;
number[8][TOP] = ON;
number[9][MIDDLE] = ON;
number[9][UPPER_L] = ON;
number[9][LOWER_L] = OFF;
number[9][BOTTOM] = ON;
number[9][LOWER_R] = ON;
number[9][UPPER_R] = ON;
number[9][TOP] = ON;
}