User manual

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Sample code:

//the pin to control ROW

const int row1 = 2; // the number of the row pin 9

const int row2 = 3; // the number of the row pin 14

const int row3 = 4; // the number of the row pin 8

const int row4 = 5; // the number of the row pin 12

const int row5 = 17; // the number of the row pin 1

const int row6 = 16; // the number of the row pin 7

const int row7 = 15; // the number of the row pin 2

const int row8 = 14; // the number of the row pin 5

//the pin to control COl

const int col1 = 6; // the number of the col pin 13

const int col2 = 7; // the number of the col pin 3

const int col3 = 8; // the number of the col pin 4

const int col4 = 9; // the number of the col pin 10

const int col5 = 10; // the number of the col pin 6

const int col6 = 11; // the number of the col pin 11

const int col7 = 12; // the number of the col pin 15

const int col8 = 13; // the number of the col pin 16

void setup(){

int i = 0 ;

for(i=2;i<18;i++)

{

pinMode(i, OUTPUT);

}

pinMode(row5, OUTPUT);

pinMode(row6, OUTPUT);

pinMode(row7, OUTPUT);

pinMode(row8, OUTPUT);