Using the joystick with Arduino

 https://www.robotique.tech/robotics/using-the-joystick-with-arduino/

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 20, 4);

int VRx = A0;

int VRy = A1;

int SW = 2;

int xPosition = 0;

int yPosition = 0;

int SW_state = 0;

int mapX = 0;

int mapY = 0;

void setup() {

lcd.init();

pinMode(VRx, INPUT);

pinMode(VRy, INPUT);

pinMode(SW, INPUT_PULLUP);

}

void loop() {

lcd.backlight();

lcd.clear(); 

xPosition = analogRead(VRx);

yPosition = analogRead(VRy);

SW_state = digitalRead(SW);

mapX = map(xPosition, 0, 1023, -512, 512);

mapY = map(yPosition, 0, 1023, -512, 512);

if ((mapX>=-515)&& (mapX<=-510)&&(mapY>=-175)&& (mapY<=-168))

lcd.print("Forward");//When the user points the joystick controller forward, the word “Forward” is displayed.

if ((mapX>=168)&& (mapX<=175)&&(mapY>=-175)&& (mapY<=-168))

lcd.print("Backward");//When the user moves the joystick to the rear, the word “Backward” is displayed.

if ((mapX<=-166)&& (mapX>=-175)&&(mapY>=-515)&& (mapY<=-510))

lcd.print("Right");//When the user points the joystick to the right, the word “Right” is displayed

if ((mapX>=-175)&& (mapX<=-170)&&(mapY>=165)&& (mapY<=175))

lcd.print("Left");//When the user points the joystick to the left, the word “Left” is displayed.

if (SW_state==0)

lcd.print("Pressed button");

delay(1000);

}