# Activity 3 - Joystick & LEDs

## Activity 3 - Joystick + LEDs

Let’s combine activity 1 and activity 2. Let’s control LEDs based on the input from the joystick.

1. Attach one end of a jumper wire to GND on the joystick and the other to 7X on the Breadboard.
2. Attach one end of a jumper wire to +5V on the joystick and the other to 5W on the Breadboard.
3. Attach one end of a jumper wire to VRx on the joystick and the other to A0 on the Elegoo.
4. Attach one end of a jumper wire to VRy on the joystick and the other to GND on the Elegoo.
5. Attach one end of a jumper wire to SW on the joystick and the other to 2 on the Elegoo.
6. Attach the long lead (anode) of your blue LED to pin 8F and the short lead (cathode) into pin 9F.
7. Attach a 220 resistor with one leg in 8G and the other in 4G.
8. Attach one end of a jumper wire to 4H on the Breadboard and the other to 11 on the Elegoo.
9. Attach one end of a jumper wire to 9G and the other to 12Z (anywhere in the blue [-] line) on the Breadboard.
10. Attach the long lead (anode) of your yellow LED to pin 14J and the short lead (cathode) into pin 15J.
11. Attach a 220 resistor with one leg in 14I and the other in 10I.
12. Attach one end of a jumper wire to 10J on the Breadboard and the other to 10 on the Elegoo.
13. Attach one end of a jumper wire to 15I and the other to 18Z (anywhere in the blue [-] line) on the Breadboard.
14. Attach the long lead (anode) of your red LED to pin 21F and the short lead (cathode) into pin 22F.
15. Attach a 220 resistor with one leg in 17G and the other in 21G.
16. Attach one end of a jumper wire to 17H on the Breadboard and the other to 9 on the Elegoo.
17. Attach one end of a jumper wire to 22G and the other to 25Z (anywhere in the blue [-] line) on the Breadboard.
18. Attach the long lead (anode) of your green LED to pin 14A and the short lead (cathode) into pin 15A.
19. Attach a 220 resistor with one leg in 10B and the other in 14B.
20. Attach one end of a jumper wire to 10C on the Breadboard and the other to 8 on the Elegoo.
21. Attach one end of a jumper wire to 15B and the other to 17X (anywhere in the blue [-] line) on the Breadboard.
22. Connect the blue [-] rails together with a jumper wire
23. Connect the red [+] rails together witha jumper wire
24. Attach one end of a jumper wire to the +5V on the Elegoo and the other anywhere on one of the red [+] lines.
25. Attach one end of a jumper wire to the GND on the Elegoo and the other anywhere on one of the blue [-] lines.

## The Code

int button=2;
int buttonState=0;
int buttonState1=0;

void setup() {
pinMode(7,OUTPUT);
pinMode(button,INPUT);
digitalWrite(button,HIGH);
Serial.begin(9600);

pinMode(8,OUTPUT);
pinMode(9,OUTPUT);
pinMode(10,OUTPUT);
pinMode(11,OUTPUT);
}

void loop() {

int xValue = analogRead(joyX);
int yValue = analogRead(joyY);

Serial.print(xValue);
Serial.print("\t");
Serial.println(yValue);
Serial.println(buttonState);

if (xValue>=0 && yValue<=20)
{
digitalWrite(10,HIGH);
}
else{digitalWrite(10,LOW);}

if (xValue<=20 && yValue>=490)
{
digitalWrite(11,HIGH);
}
else{digitalWrite(11,LOW);}

if (xValue>=1010 && yValue>=490)
{
digitalWrite(9,HIGH);
}
else{digitalWrite(9,LOW);}

if (xValue>=490 && yValue>=1010)
{
digitalWrite(8,HIGH);
}
else{digitalWrite(8,LOW);}

if (xValue>=1010 && yValue>=1010)
{
digitalWrite(9,LOW);
digitalWrite(8,LOW);
}

if (buttonState==LOW)
{
Serial.println("Switch = High");
digitalWrite(7,HIGH);
}
else{digitalWrite(7,LOW);}