Question

Arduino:

Make a circuit that will turn on LEDs based on directions of a joystick as follows (3 LEDs for x axis and 3 LEDs for y axis):

* For x axis, RED at the left, GREEN at the middle, and BLUE at the right.

* For y axis, RED at the up, GREEN at the middle, and BLUE at the down.

Answer 1

const int X_axis = 0; // analog pin connected to X output of the joystick
const int Y_axis = 1; // analog pin connected to Y output of the joystick
int left = 5;
int middle = 6;
int right = 7;
int down = 8;
int up = 9;
void setup()
{
Serial.begin(115200);
pinMode(left, OUTPUT);
pinMode(right, OUTPUT);
pinMode(middle, OUTPUT);
pinMode(up, OUTPUT);
pinMode(down, OUTPUT);

digitalWrite( left, LOW );
digitalWrite( right, LOW );
digitalWrite( middle, LOW );
digitalWrite( up, LOW );
digitalWrite( down, LOW );

}

void loop()
{
Serial.print("X-axis: ");
Serial.print(analogRead(X_axis));
Serial.print("\n");
Serial.print("Y-axis: ");
Serial.println(analogRead(Y_axis));
Serial.print("\n");
if (Y_axis <= 10)
{
digitalWrite(down, HIGH);
}
else
{digitalWrite(down, LOW);}
if (Y_axis >= 990)
{
digitalWrite(up, HIGH);
}
else
{digitalWrite(up, LOW);}
if (X_axis >= 990)
{
digitalWrite(right, HIGH);
}
else
{digitalWrite(right, LOW);}
if (X_axis <= 10)
{
digitalWrite(left, HIGH);
}
else
{digitalWrite(left, LOW);}
if(550 > X_axis > 490 && 550 > Y_axis > 490)
{
digitalWrite(middle, HIGH);
}
else
{digitalWrite(middle, LOW);}
delay(100);
}
/*Extreme analog value of a joystick is usually 1000 to 1050 and lowest value is around 0.
* When joystick is pulled to its extreme left, the analog value of X_axis should be almost zero.
* When joystick is pulled to its extreme right, the analog value of X_axis should be around 1000.
* Similarly when stick is pulled to its extreme up,the analog value of the Y_axis should be around 1000.
* When joystick is pulled to its extreme down, the analog value of the Y_axis should be almost 0.
* And when the stick is in the middle, analog value of both X_axis and Y_axis will be around 500.
*/

Now make the connection as shown below.