1. Assemble the project

• Connect the cable that came with the Grove Thumb Joystick to the joystick’s connector.

• Look at the underside of the joystick’s board to identify what the 4 cables correspond to.

• Connect a jumper wire from GND on the Grove to GND on the Arduino.
• Connect a jumper wire from VCC on the Grove to 3.3V on the Arduino.
• Connect a jumper wire from X on the Grove to A0 on the Arduino.
• Connect a jumper wire from Y on the Grove to A1 on the Arduino.

2. Programme the Arduino

• On your host computer, go to https://www.arduino.cc/en/main/software  and download the correct IDE for your operating system if you don’t already have it.

• Connect the Arduino to your host computer using a micro USB cable.
• Open Arduino IDE, set the correct options for Board (Arduino Leonardo) and Port (USB)under the Tools menu.
• Upload the following code:

void setup() {  Serial.begin(9600);
}
 
void loop() {
  int sensorValue1 = analogRead(A0);
  int sensorValue2 = analogRead(A1);
  Serial.print("The X and Y coordinate is:");
  Serial.print(sensorValue1, DEC);
  Serial.print(",");
  Serial.println(sensorValue2, DEC);
  Serial.println(" ");
  delay(200);
}​

• Open the Serial Monitor by clicking on the Magnifying glass icon on the Arduino IDE window.

You should now see the X and Y values change as you move the Grove joystick.

3. Do more

Now that you have the basic set-up up and running you can easily incorporate the X and Y values received by the Arduino to any project where you need control. Simply use the variables sensorValue1 and sensorValue2 in your code.