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Arduino Project: LED Matrix
Intermediate
50
34,18
With this project I show how to control a ball on an 8×8 led matrix.
The two potentiometers allow you to move the ball over the X and Y axes of the matrix.
In this project you will learn how to use an LED matrix and how to read the values from a potentiometer.
Building and Wiring
Now that you have all the parts you can start connecting the parts. First you go from the 5V on the UNO to the plus on the breadboard and from the GND to the minus on the breadboard. Once you have done that you put the potentiometers on the breadboard. Then you take the leftmost pin of both potentiometers and connect it to the plus, the rightmost to the minus and the middle of one potentiometer you connect to the A0 and the other to the A1. Now we are going to connect the led matrix, the led matrix you put in the breadboard with the chip at the bottom. The VCC of the led matrix goes to the plus and the GND goes to the minus. Then we connect the I/O pins to the three other pins on the matrix. The DIN goes to pin 12, the CS to pin 10 and the CLK to pin 11.
Programming
You can copy the code below, but we recommend typing it yourself as it will help you learn more.
#include LedControl.h
//hier geven we de LED matrix een naam en de I/O pinnen die hij kan besturen
LedControl L = LedControl(12, 11, 10);
//hier defineren we de potentiometers
const int pot = 0;
const int pot2 = 1;
//hier zorgen we ervoor dat we de waardes van de potentiometer kunnen opslaan
int potvalue;
int potvalue2;
void setup(){
//hier stellen we de led matrix in door hem uit te zetten daarna de intensiteit aan te passen en het geheugen te wissen
L.shutdown(0, false);
L.setIntensity(0, 4);
L.clearDisplay(0);
}
void loop(){
//hier zeggen we dat de Arduino de analoge poorten moet lezen voor waardes
potvalue = analogRead(pot);
//hier defineren we de waardes die de pot meter aan kan geven
potvalue = map(potvalue, 0, 1000, 0, 7);
potvalue2 = analogRead(pot2);
potvalue2 = map(potvalue2, 0, 1000, 0, 7);
//hier kijken we of beide waardes gelijk zijn aan 0 zo ja lampje 0,0 gaat aan
//wat hier dus eigenlijk staat is als 1 en 2 gelijk zijn aan 0 dan gaat 0,0 aan
if(potvalue == 0 && potvalue2 == 0){
int row = 0;
int col = 0;
L.setLed(0, row, col, true);
}
//hier kijken we of een van die waardes niet 0 is als dat waar is gaat 0,0 uit
//dit proces blijven we de hele tijd herhalen totdat alle coördinaten zijn gedefinieerd
//wat hier staat is als 1 of 2 niet gelijk is aan 0 dan gaat 0,0 uit
if(potvalue != 0 || potvalue2 != 0){
int row = 0;
int col = 0;
L.setLed(0, row, col, false);
}
if(potvalue == 1 && potvalue2 == 0){
int row = 1;
int col = 0;
L.setLed(0, row, col, true);
}
if(potvalue != 1 || potvalue2 != 0){
int row = 1;
int col = 0;
L.setLed(0, row, col, false);
}
if(potvalue == 2 && potvalue2 == 0){
int row = 2;
int col = 0;
L.setLed(0, row, col, true);
}
if(potvalue != 2 || potvalue2 != 0){
int row = 2;
int col = 0;
L.setLed(0, row, col, false);
}
if(potvalue == 3 && potvalue2 == 0){
int row = 3;
int col = 0;
L.setLed(0, row, col, true);
}
if(potvalue != 3 || potvalue2 != 0){
int row = 3;
int col = 0;
L.setLed(0, row, col, false);
}
if(potvalue == 4 && potvalue2 == 0){
int row = 4;
int col = 0;
L.setLed(0, row, col, true);
}
if(potvalue != 4 || potvalue2 != 0){
int row = 4;
int col = 0;
L.setLed(0, row, col, false);
}
if(potvalue == 5 && potvalue2 == 0){
int row = 5;
int col = 0;
L.setLed(0, row, col, true);
}
if(potvalue != 5 || potvalue2 != 0){
int row = 5;
int col = 0;
L.setLed(0, row, col, false);
}
if(potvalue == 6 && potvalue2 == 0){
int row = 6;
int col = 0;
L.setLed(0, row, col, true);
}
if(potvalue != 6 || potvalue2 != 0){
int row = 6;
int col = 0;
L.setLed(0, row, col, false);
}
if(potvalue == 7 && potvalue2 == 0){
int row = 7;
int col = 0;
L.setLed(0, row, col, true);
}
if(potvalue != 7 || potvalue2 != 0){
int row = 7;
int col = 0;
L.setLed(0, row, col, false);
}
if(potvalue == 0 && potvalue2 == 1){
int row = 0;
int col = 1;
L.setLed(0, row, col, true);
}
if(potvalue != 0 || potvalue2 != 1){
int row = 0;
int col = 1;
L.setLed(0, row, col, false);
}
if(potvalue == 1 && potvalue2 == 1){
int row = 1;
int col = 1;
L.setLed(0, row, col, true);
}
if(potvalue != 1 || potvalue2 != 1){
int row = 1;
int col = 1;
L.setLed(0, row, col, false);
}
if(potvalue == 2 && potvalue2 == 1){
int row = 2;
int col = 1;
L.setLed(0, row, col, true);
}
if(potvalue != 2 || potvalue2 != 1){
int row = 2;
int col = 1;
L.setLed(0, row, col, false);
}
if(potvalue == 3 && potvalue2 == 1){
int row = 3;
int col = 1;
L.setLed(0, row, col, true);
}
if(potvalue != 3 || potvalue2 != 1){
int row = 3;
int col = 1;
L.setLed(0, row, col, false);
}
if(potvalue == 4 && potvalue2 == 1){
int row = 4;
int col = 1;
L.setLed(0, row, col, true);
}
if(potvalue != 4 || potvalue2 != 1){
int row = 4;
int col = 1;
L.setLed(0, row, col, false);
}
if(potvalue == 5 && potvalue2 == 1){
int row = 5;
int col = 1;
L.setLed(0, row, col, true);
}
if(potvalue != 5 || potvalue2 != 1){
int row = 5;
int col = 1;
L.setLed(0, row, col, false);
}
if(potvalue == 6 && potvalue2 == 1){
int row = 6;
int col = 1;
L.setLed(0, row, col, true);
}
if(potvalue != 6 || potvalue2 != 1){
int row = 6;
int col = 1;
L.setLed(0, row, col, false);
}
if(potvalue == 7 && potvalue2 == 1){
int row = 7;
int col = 1;
L.setLed(0, row, col, true);
}
if(potvalue != 7 || potvalue2 != 1){
int row = 7;
int col = 1;
L.setLed(0, row, col, false);
}
if(potvalue == 0 && potvalue2 == 2){
int row = 0;
int col = 2;
L.setLed(0, row, col, true);
}
if(potvalue != 0 || potvalue2 != 2){
int row = 0;
int col = 2;
L.setLed(0, row, col, false);
}
if(potvalue == 1 && potvalue2 == 2){
int row = 1;
int col = 2;
L.setLed(0, row, col, true);
}
if(potvalue != 1 || potvalue2 != 2){
int row = 1;
int col = 2;
L.setLed(0, row, col, false);
}
if(potvalue == 2 && potvalue2 == 2){
int row = 2;
int col = 2;
L.setLed(0, row, col, true);
}
if(potvalue != 2 || potvalue2 != 2){
int row = 2;
int col = 2;
L.setLed(0, row, col, false);
}
if(potvalue == 3 && potvalue2 == 2){
int row = 3;
int col = 2;
L.setLed(0, row, col, true);
}
if(potvalue != 3 || potvalue2 != 2){
int row = 3;
int col = 2;
L.setLed(0, row, col, false);
}
if(potvalue == 4 && potvalue2 == 2){
int row = 4;
int col = 2;
L.setLed(0, row, col, true);
}
if(potvalue != 4 || potvalue2 != 2){
int row = 4;
int col = 2;
L.setLed(0, row, col, false);
}
if(potvalue == 5 && potvalue2 == 2){
int row = 5;
int col = 2;
L.setLed(0, row, col, true);
}
if(potvalue != 5 || potvalue2 != 2){
int row = 5;
int col = 2;
L.setLed(0, row, col, false);
}
if(potvalue == 6 && potvalue2 == 2){
int row = 6;
int col = 2;
L.setLed(0, row, col, true);
}
if(potvalue != 6 || potvalue2 != 2){
int row = 6;
int col = 2;
L.setLed(0, row, col, false);
}
if(potvalue == 7 && potvalue2 == 2){
int row = 7;
int col = 2;
L.setLed(0, row, col, true);
}
if(potvalue != 7 || potvalue2 != 2){
int row = 7;
int col = 2;
L.setLed(0, row, col, false);
}
if(potvalue == 0 && potvalue2 == 3){
int row = 0;
int col = 3;
L.setLed(0, row, col, true);
}
if(potvalue != 0 || potvalue2 != 3){
int row = 0;
int col = 3;
L.setLed(0, row, col, false);
}
if(potvalue == 1 && potvalue2 == 3){
int row = 1;
int col = 3;
L.setLed(0, row, col, true);
}
if(potvalue != 1 || potvalue2 != 3){
int row = 1;
int col = 3;
L.setLed(0, row, col, false);
}
if(potvalue == 2 && potvalue2 == 3){
int row = 2;
int col = 3;
L.setLed(0, row, col, true);
}
if(potvalue != 2 || potvalue2 != 3){
int row = 2;
int col = 3;
L.setLed(0, row, col, false);
}
if(potvalue == 3 && potvalue2 == 3){
int row = 3;
int col = 3;
L.setLed(0, row, col, true);
}
if(potvalue != 3 || potvalue2 != 3){
int row = 3;
int col = 3;
L.setLed(0, row, col, false);
}
if(potvalue == 4 && potvalue2 == 3){
int row = 4;
int col = 3;
L.setLed(0, row, col, true);
}
if(potvalue != 4 || potvalue2 != 3){
int row = 4;
int col = 3;
L.setLed(0, row, col, false);
}
if(potvalue == 5 && potvalue2 == 3){
int row = 5;
int col = 3;
L.setLed(0, row, col, true);
}
if(potvalue != 5 || potvalue2 != 3){
int row = 5;
int col = 3;
L.setLed(0, row, col, false);
}
if(potvalue == 6 && potvalue2 == 3){
int row = 6;
int col = 3;
L.setLed(0, row, col, true);
}
if(potvalue != 6 || potvalue2 != 3){
int row = 6;
int col = 3;
L.setLed(0, row, col, false);
}
if(potvalue == 7 && potvalue2 == 3){
int row = 7;
int col = 3;
L.setLed(0, row, col, true);
}
if(potvalue != 7 || potvalue2 != 3){
int row = 7;
int col = 3;
L.setLed(0, row, col, false);
}
if(potvalue == 0 && potvalue2 == 4){
int row = 0;
int col = 4;
L.setLed(0, row, col, true);
}
if(potvalue != 0 || potvalue2 != 4){
int row = 0;
int col = 4;
L.setLed(0, row, col, false);
}
if(potvalue == 1 && potvalue2 == 4){
int row = 1;
int col = 4;
L.setLed(0, row, col, true);
}
if(potvalue != 1 || potvalue2 != 4){
int row = 1;
int col = 4;
L.setLed(0, row, col, false);
}
if(potvalue == 2 && potvalue2 == 4){
int row = 2;
int col = 4;
L.setLed(0, row, col, true);
}
if(potvalue != 2 || potvalue2 != 4){
int row = 2;
int col = 4;
L.setLed(0, row, col, false);
}
if(potvalue == 3 && potvalue2 == 4){
int row = 3;
int col = 4;
L.setLed(0, row, col, true);
}
if(potvalue != 3 || potvalue2 != 4){
int row = 3;
int col = 4;
L.setLed(0, row, col, false);
}
if(potvalue == 4 && potvalue2 == 4){
int row = 4;
int col = 4;
L.setLed(0, row, col, true);
}
if(potvalue != 4 || potvalue2 != 4){
int row = 4;
int col = 4;
L.setLed(0, row, col, false);
}
if(potvalue == 5 && potvalue2 == 4){
int row = 5;
int col = 4;
L.setLed(0, row, col, true);
}
if(potvalue != 5 || potvalue2 != 4){
int row = 5;
int col = 4;
L.setLed(0, row, col, false);
}
if(potvalue == 6 && potvalue2 == 4){
int row = 6;
int col = 4;
L.setLed(0, row, col, true);
}
if(potvalue != 6 || potvalue2 != 4){
int row = 6;
int col = 4;
L.setLed(0, row, col, false);
}
if(potvalue == 7 && potvalue2 == 4){
int row = 7;
int col = 4;
L.setLed(0, row, col, true);
}
if(potvalue != 7 || potvalue2 != 4){
int row = 7;
int col = 4;
L.setLed(0, row, col, false);
}
if(potvalue == 0 && potvalue2 == 5){
int row = 0;
int col = 5;
L.setLed(0, row, col, true);
}
if(potvalue != 0 || potvalue2 != 5){
int row = 0;
int col = 5;
L.setLed(0, row, col, false);
}
if(potvalue == 1 && potvalue2 == 5){
int row = 1;
int col = 5;
L.setLed(0, row, col, true);
}
if(potvalue != 1 || potvalue2 != 5){
int row = 1;
int col = 5;
L.setLed(0, row, col, false);
}
if(potvalue == 2 && potvalue2 == 5){
int row = 2;
int col = 5;
L.setLed(0, row, col, true);
}
if(potvalue != 2 || potvalue2 != 5){
int row = 2;
int col = 5;
L.setLed(0, row, col, false);
}
if(potvalue == 3 && potvalue2 == 5){
int row = 3;
int col = 5;
L.setLed(0, row, col, true);
}
if(potvalue != 3 || potvalue2 != 5){
int row = 3;
int col = 5;
L.setLed(0, row, col, false);
}
if(potvalue == 4 && potvalue2 == 5){
int row = 4;
int col = 5;
L.setLed(0, row, col, true);
}
if(potvalue != 4 || potvalue2 != 5){
int row = 4;
int col = 5;
L.setLed(0, row, col, false);
}
if(potvalue == 5 && potvalue2 == 5){
int row = 5;
int col = 5;
L.setLed(0, row, col, true);
}
if(potvalue != 5 || potvalue2 != 5){
int row = 5;
int col = 5;
L.setLed(0, row, col, false);
}
if(potvalue == 6 && potvalue2 == 5){
int row = 6;
int col = 5;
L.setLed(0, row, col, true);
}
if(potvalue != 6 || potvalue2 != 5){
int row = 6;
int col = 5;
L.setLed(0, row, col, false);
}
if(potvalue == 7 && potvalue2 == 5){
int row = 7;
int col = 5;
L.setLed(0, row, col, true);
}
if(potvalue != 7 || potvalue2 != 5){
int row = 7;
int col = 5;
L.setLed(0, row, col, false);
}
if(potvalue == 0 && potvalue2 == 6){
int row = 0;
int col = 6;
L.setLed(0, row, col, true);
}
if(potvalue != 0 || potvalue2 != 6){
int row = 0;
int col = 6;
L.setLed(0, row, col, false);
}
if(potvalue == 1 && potvalue2 == 6){
int row = 1;
int col = 6;
L.setLed(0, row, col, true);
}
if(potvalue != 1 || potvalue2 != 6){
int row = 1;
int col = 6;
L.setLed(0, row, col, false);
}
if(potvalue == 2 && potvalue2 == 6){
int row = 2;
int col = 6;
L.setLed(0, row, col, true);
}
if(potvalue != 2 || potvalue2 != 6){
int row = 2;
int col = 6;
L.setLed(0, row, col, false);
}
if(potvalue == 3 && potvalue2 == 6){
int row = 3;
int col = 6;
L.setLed(0, row, col, true);
}
if(potvalue != 3 || potvalue2 != 6){
int row = 3;
int col = 6;
L.setLed(0, row, col, false);
}
if(potvalue == 4 && potvalue2 == 6){
int row = 4;
int col = 6;
L.setLed(0, row, col, true);
}
if(potvalue != 4 || potvalue2 != 6){
int row = 4;
int col = 6;
L.setLed(0, row, col, false);
}
if(potvalue == 5 && potvalue2 == 6){
int row = 5;
int col = 6;
L.setLed(0, row, col, true);
}
if(potvalue != 5 || potvalue2 != 6){
int row = 5;
int col = 6;
L.setLed(0, row, col, false);
}
if(potvalue == 6 && potvalue2 == 6){
int row = 6;
int col = 6;
L.setLed(0, row, col, true);
}
if(potvalue != 6 || potvalue2 != 6){
int row = 6;
int col = 6;
L.setLed(0, row, col, false);
}
if(potvalue == 7 && potvalue2 == 6){
int row = 7;
int col = 6;
L.setLed(0, row, col, true);
}
if(potvalue != 7 || potvalue2 != 6){
int row = 7;
int col = 6;
L.setLed(0, row, col, false);
}
if(potvalue == 0 && potvalue2 == 7){
int row = 0;
int col = 7;
L.setLed(0, row, col, true);
}
if(potvalue != 0 || potvalue2 != 7){
int row = 0;
int col = 7;
L.setLed(0, row, col, false);
}
if(potvalue == 1 && potvalue2 == 7){
int row = 1;
int col = 7;
L.setLed(0, row, col, true);
}
if(potvalue != 1 || potvalue2 != 7){
int row = 1;
int col = 7;
L.setLed(0, row, col, false);
}
if(potvalue == 2 && potvalue2 == 7){
int row = 2;
int col = 7;
L.setLed(0, row, col, true);
}
if(potvalue != 2 || potvalue2 != 7){
int row = 2;
int col = 7;
L.setLed(0, row, col, false);
}
if(potvalue == 3 && potvalue2 == 7){
int row = 3;
int col = 7;
L.setLed(0, row, col, true);
}
if(potvalue != 3 || potvalue2 != 7){
int row = 3;
int col = 7;
L.setLed(0, row, col, false);
}
if(potvalue == 4 && potvalue2 == 7){
int row = 4;
int col = 7;
L.setLed(0, row, col, true);
}
if(potvalue != 4 || potvalue2 != 7){
int row = 4;
int col = 7;
L.setLed(0, row, col, false);
}
if(potvalue == 5 && potvalue2 == 7){
int row = 5;
int col = 7;
L.setLed(0, row, col, true);
}
if(potvalue != 5 || potvalue2 != 7){
int row = 5;
int col = 7;
L.setLed(0, row, col, false);
}
if(potvalue == 6 && potvalue2 == 7){
int row = 6;
int col = 7;
L.setLed(0, row, col, true);
}
if(potvalue != 6 || potvalue2 != 7){
int row = 6;
int col = 7;
L.setLed(0, row, col, false);
}
if(potvalue == 7 && potvalue2 == 7){
int row = 7;
int col = 7;
L.setLed(0, row, col, true);
}
if(potvalue != 7 || potvalue2 != 7){
int row = 7;
int col = 7;
L.setLed(0, row, col, false);
}
}
