LEVEL INDICATOR 24 LED

LEVEL indicator 24 LED

//Pin connected to ST_CP of 74HC595
int latchPin = 8;
//Pin connected to SH_CP of 74HC595
int clockPin = 12;
////Pin connected to DS of 74HC595
int dataPin = 11;

//holders for infromation you’re going to pass to shifting function
byte dataRED;
byte dataGREEN;
byte dataBLUE;
byte dataArrayRED[25];
byte dataArrayGREEN[25];
byte dataArrayBLUE[25];

void setup() {
//set pins to output because they are addressed in the main loop
pinMode(latchPin, OUTPUT);
Serial.begin(9600);

//Arduino doesn’t seem to have a way to write binary straight into the code
//so these values are in HEX. Decimal would have been fine, too.
dataArrayGREEN[0] = 0x00; //00000000
dataArrayGREEN[1] = 0x80; //00000001
dataArrayGREEN[2] = 0xC0; //00000011
dataArrayGREEN[3] = 0xE0; //00000111
dataArrayGREEN[4] = 0xF0; //00001111
dataArrayGREEN[5] = 0xF8; //00011111
dataArrayGREEN[6] = 0xFC; //00111111
dataArrayGREEN[7] = 0xFE; //01111111
dataArrayGREEN[8] = 0xFF; //11111111
dataArrayGREEN[9] = 0xFF; //11111111
dataArrayGREEN[10] = 0xFF; //11111111
dataArrayGREEN[11] = 0xFF; //11111111
dataArrayGREEN[12] = 0xFF; //11111111
dataArrayGREEN[13] = 0xFF; //11111111
dataArrayGREEN[14] = 0xFF; //11111111
dataArrayGREEN[15] = 0xFF; //11111111
dataArrayGREEN[16] = 0xFF; //11111111
dataArrayGREEN[17] = 0xFF; //11111111
dataArrayGREEN[18] = 0xFF; //11111111
dataArrayGREEN[19] = 0xFF; //11111111
dataArrayGREEN[20] = 0xFF; //11111111
dataArrayGREEN[21] = 0xFF; //11111111
dataArrayGREEN[22] = 0xFF; //11111111
dataArrayGREEN[23] = 0xFF; //11111111
dataArrayGREEN[24] = 0xFF; //11111111

//Arduino doesn’t seem to have a way to write binary straight into the code
//so these values are in HEX. Decimal would have been fine, too.
dataArrayRED[0] = 0x00; //11111111
dataArrayRED[1] = 0x00; //00000000
dataArrayRED[2] = 0x00; //00000000
dataArrayRED[3] = 0x00; //00000000
dataArrayRED[4] = 0x00; //00000000
dataArrayRED[5] = 0x00; //00000000
dataArrayRED[6] = 0x00; //00000000
dataArrayRED[7] = 0x00; //00000000
dataArrayRED[8] = 0x00; //00000000
dataArrayRED[9] = 0x80; //10000000
dataArrayRED[10] = 0xC0; //11000000
dataArrayRED[11] = 0xE0; //11100000
dataArrayRED[12] = 0xF0; //11110000
dataArrayRED[13] = 0xF8; //11111000
dataArrayRED[14] = 0xFC; //11111100
dataArrayRED[15] = 0xFE; //11111110
dataArrayRED[16] = 0xFF; //11111111
dataArrayRED[17] = 0xFF; //11111111
dataArrayRED[18] = 0xFF; //11111111
dataArrayRED[19] = 0xFF; //11111111
dataArrayRED[20] = 0xFF; //11111111
dataArrayRED[21] = 0xFF; //11111111
dataArrayRED[22] = 0xFF; //11111111
dataArrayRED[23] = 0xFF; //11111111
dataArrayRED[24] = 0xFF; //11111111

dataArrayBLUE[0] = 0x00; //00000000
dataArrayBLUE[1] = 0x00; //00000000
dataArrayBLUE[2] = 0x00; //00000000
dataArrayBLUE[3] = 0x00; //00000000
dataArrayBLUE[4] = 0x00; //00000000
dataArrayBLUE[5] = 0x00; //00000000
dataArrayBLUE[6] = 0x00; //00000000
dataArrayBLUE[7] = 0x00; //00000000
dataArrayBLUE[8] = 0x00; //00000000
dataArrayBLUE[9] = 0x00; //00000000
dataArrayBLUE[10] = 0x00; //00000000
dataArrayBLUE[11] = 0x00; //00000000
dataArrayBLUE[12] = 0x00; //00000000
dataArrayBLUE[13] = 0x00; //00000000
dataArrayBLUE[14] = 0x00; //00000000
dataArrayBLUE[15] = 0x00; //00000000
dataArrayBLUE[16] = 0x00; //00000000
dataArrayBLUE[17] = 0x80; //10000000
dataArrayBLUE[18] = 0xC0; //11000000
dataArrayBLUE[19] = 0xE0; //11100000
dataArrayBLUE[20] = 0xF0; //11110000
dataArrayBLUE[21] = 0xF8; //11111000
dataArrayBLUE[22] = 0xFC; //11111100
dataArrayBLUE[23] = 0xFE; //11111110
dataArrayBLUE[24] = 0xFF; //11111111

//function that blinks all the LEDs
//gets passed the number of blinks and the pause time
blinkAll_2Bytes(2,300);
}
int proximity=0;
void loop() {
int sensorValue = analogRead(A0);
proximity=map(sensorValue, 0, 1023, 0, 25);
Serial.println(sensorValue);
//for (int j = 0; j < 24; j++) {
//load the light sequence you want from array
dataGREEN = dataArrayGREEN[proximity];
dataRED = dataArrayRED[proximity];
dataBLUE = dataArrayBLUE[proximity];

//ground latchPin and hold low for as long as you are transmitting
digitalWrite(latchPin, 1);
//move ’em out
shiftOut(dataPin, clockPin, dataGREEN);
shiftOut(dataPin, clockPin, dataRED);
shiftOut(dataPin, clockPin, dataBLUE);
//return the latch pin high to signal chip that it
//no longer needs to listen for information
digitalWrite(latchPin, 0);
//delay(100);
//}
}

// the heart of the program
void shiftOut(int myDataPin, int myClockPin, byte myDataOut) {
// This shifts 8 bits out MSB first,
//on the rising edge of the clock,
//clock idles low

//internal function setup
int i=0;
int pinState;
pinMode(myClockPin, OUTPUT);
pinMode(myDataPin, OUTPUT);

//clear everything out just in case to
//prepare shift register for bit shifting
digitalWrite(myDataPin, 0);
digitalWrite(myClockPin, 0);

//for each bit in the byte myDataOut�
//NOTICE THAT WE ARE COUNTING DOWN in our for loop
//This means that %00000001 or “1” will go through such
//that it will be pin Q0 that lights.
for (i=7; i>=0; i–) {
digitalWrite(myClockPin, 0);

//if the value passed to myDataOut and a bitmask result
// true then… so if we are at i=6 and our value is
// %11010100 it would the code compares it to %01000000
// and proceeds to set pinState to 1.
if ( myDataOut & (1<<i) ) {
pinState= 1;
}
else {
pinState= 0;
}

//Sets the pin to HIGH or LOW depending on pinState
digitalWrite(myDataPin, pinState);
//register shifts bits on upstroke of clock pin
digitalWrite(myClockPin, 1);
//zero the data pin after shift to prevent bleed through
digitalWrite(myDataPin, 0);
}

//stop shifting
digitalWrite(myClockPin, 0);
}
//blinks the whole register based on the number of times you want to
//blink “n” and the pause between them “d”
//starts with a moment of darkness to make sure the first blink
//has its full visual effect.
void blinkAll_2Bytes(int n, int d) {
digitalWrite(latchPin, 0);
shiftOut(dataPin, clockPin, 0);
shiftOut(dataPin, clockPin, 0);
shiftOut(dataPin, clockPin, 0);
digitalWrite(latchPin, 1);
delay(200);
for (int x = 0; x < n; x++) {
digitalWrite(latchPin, 0);
shiftOut(dataPin, clockPin, 255);
shiftOut(dataPin, clockPin, 255);
shiftOut(dataPin, clockPin, 255);
digitalWrite(latchPin, 1);
delay(d);
digitalWrite(latchPin, 0);
shiftOut(dataPin, clockPin, 0);
shiftOut(dataPin, clockPin, 0);
shiftOut(dataPin, clockPin, 0);
digitalWrite(latchPin, 1);
delay(d);
}
}