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LED_Matrix_V0.1.ino
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LED_Matrix_V0.1.ino
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//Pin connections to the arduino microcontroller
#define SH_CP_1 5 //COLUMN 1-16
#define DS_1 7
#define ST_CP_1 6
#define SH_CP_2 13 //ROW 1-16
#define DS_2 4
#define ST_CP_2 3
#define Vx A0 //Joystick
#define Vy A1
#define Sw A2
int arrColumn[8] = {B10000000, B01000000, B00100000, B00010000, B00001000, B00000100, B00000010, B00000001};
int arrRow[8] = {B01111111, B10111111, B11011111, B11101111, B11110111, B11111011, B11111101, B11111110};
bool matrixLED[16][16]={
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false},
{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false}
};
int alphabetsRow[][5]={
{193, 190, 162, 166, 177}, // @ 0
{131, 237, 238, 237, 131}, // A 00
{201, 182, 182, 182, 128}, // B 01
{221, 190, 190, 190, 193}, // C 02
{193, 190, 190, 190, 128}, // D 4
{190, 182, 182, 182, 128}, // E 5
{254, 246, 246, 246, 128}, // F 6
{142, 190, 190, 174, 193}, // G 7
{128, 247, 247, 247, 128}, // H 8
{255, 190, 128, 190, 255}, // I 9
{192, 191, 191, 191, 223}, // J 10
{190, 221, 235, 247, 128}, // K 11
{191, 191, 191, 191, 128}, // L 12
{128, 253, 243, 253, 128}, // M 13
{128, 239, 247, 251, 128}, // N 14
{193, 190, 190, 190, 193}, // O 15
{241, 238, 238, 238, 128}, // P 16
{161, 190, 174, 222, 193}, // Q 17
{184, 214, 230, 246, 128}, // R 18
{205, 182, 182, 182, 217}, // S 19
{254, 254, 128, 254, 254}, // T 20
{192, 191, 191, 191, 192}, // U 21
{224, 223, 191, 223, 224}, // V 22
{128, 223, 231, 223, 128}, // W 23
{156, 235, 247, 235, 156}, // X 24
{252, 251, 131, 251, 252}, // Y 25
{188, 186, 182, 174, 158}, // Z 26
{193, 186, 182, 174, 193}, // 0 27
{255, 191, 128, 189, 255}, // 1 28
{185, 182, 182, 174, 157}, // 2 29
{204, 178, 182, 190, 222}, // 3 30
{239, 228, 237, 135, 231}, // 4 31
{198, 186, 186, 186, 216}, // 5 32
{198, 182, 182, 181, 195}, // 6 33
{252, 142, 246, 250, 254}, // 7 34
{201, 182, 182, 182, 201}, // 8 35
{225, 214, 182, 182, 185}, // 9 36
{255, 255, 255, 255, 255} // 37
// {}, // ]
// {}, // \
// {}, // [
// {}, // ^
// {}, // _
// {}, // !
// {}, // "
// {}, // #
// {}, // $
// {}, // %
// {}, // &
// {}, // '
// {}, // (
// {}, // )
// {}, // *
// {}, // +
// {}, // ,
// {}, // -
// {}, // .
// {}, // /
// {}, // :
// {}, // ;
// {}, // <
// {}, // >
// {}, // =
// {}, // ?
};
void LED_On(int ST_CP, int DS, int SH_CP, int value1, int value2){
digitalWrite(ST_CP, LOW);
shiftOut(DS, SH_CP, MSBFIRST, value1);
shiftOut(DS, SH_CP, MSBFIRST, value2);
digitalWrite(ST_CP, HIGH);
}
void LED_Off(bool value) {
//if true turns off all the LED by reversing the polarity
//i.e. giving HIGH on negative side and LOW on positive side
//can be used to turn off the LED Matrix
if (value) {
LED_On(ST_CP_1, DS_1, SH_CP_1, B00000000, B00000000);
LED_On(ST_CP_2, DS_2, SH_CP_2, B11111111, B11111111);
}
}
void LED_XY(int x, int y) {
//turns on the led given the location of the led
//location given as (row, column) location starting from 1
x = x - 1; //since numbering in array starts from 0,
y = y - 1; //and we give values starting from 1
//conditions for row, turns on the given row
if (x < 8)
LED_On(ST_CP_2, DS_2, SH_CP_2, arrRow[x], 255);
else
LED_On(ST_CP_2, DS_2, SH_CP_2, 255, arrRow[x - 8]);
//conditions for column, turns on the given column
if (y < 8)
LED_On(ST_CP_1, DS_1, SH_CP_1, arrColumn[y], 0);
else
LED_On(ST_CP_1, DS_1, SH_CP_1, 0, arrColumn[y - 8]);
}
void updateLED(int x, int y, bool value){
x = x-1;
y = y-1;
matrixLED[x][y] = value;
}
void setup(){
pinMode(SH_CP_1, OUTPUT);
pinMode(ST_CP_1, OUTPUT);
pinMode(DS_1, OUTPUT);
pinMode(SH_CP_2, OUTPUT);
pinMode(ST_CP_2, OUTPUT);
pinMode(DS_2, OUTPUT);
pinMode(Vx, INPUT);
pinMode(Vy, INPUT);
pinMode(Sw, INPUT);
Serial.begin(9600);
}
void loop(){
int x, y, s, count=0;
x = analogRead(Vx);
y = analogRead(Vy);
s = analogRead(Sw);
int i, j;
for(i=1; i<17; i++){
for(j=1; j<17; j++){
if(matrixLED[i+1][j+1] == true){
LED_XY(i, j);
Serial.println(count++);
}
delay(1);
}
}
}