How to control LED matrix using a joystick with Arduino

Materials:-

• Arduino uno
• joystick
• LED matrix 4*4

Diagram:-

Connections:-

• Joystick Vcc = Arduino 5V   
• Joystick GND = Arduino GND
• Joystick URX = Arduino analog pin 5
• joystick URY = Arduino analog pin 4       

• LED matrix Vcc = Arduino 3.5V
• LED matrix GND = Arduino GND
• LED matrix DIN = Arduino Digital pin 13
• LED matrix CS = Arduino Digital pin 12
• LED matrix CLK = Arduino Digital pin 11

Code :-

int UY = 0;

int UX = 0; 

#include "LedControl.h" //  library

LedControl lc=LedControl(13,11,12,1); //11 is to CLOCK, 12 = CS, 13=DIN//

void setup() {

  Serial.begin(9600);

  lc.shutdown(0,false);

  lc.setIntensity(0,8);// sets brightness 

  lc.clearDisplay(0);// clear screen

}

void loop() {

  UY = analogRead(A5);

  UX = analogRead(A4);

  char x_translate = map(UX, 1021, 0, 7, 0); 

  char y_translate = map(UY, 1021, 0, 0, 7);

  

  Serial.print(", LR = ");

  Serial.print(UX, DEC);

   Serial.print("UD = ");

  Serial.print(UY, DEC);

  Serial.print(", x = ");

  Serial.println(y_translate, DEC);

  Serial.print(", x = ");

  Serial.print(x_translate, DEC); 

  Serial.print(", y = ");

    lc.clearDisplay(0);

    lc.setLed(0,x_translate,y_translate,true);  

  delay(150); 

}