Grove - Thumb Joystick

Introduction

Grove - Thumb Joystick is a Grove compatible module which is very similar to the 'analog' joystick on PS2 (PlayStation 2) controllers. The X and Y axes are two ~10k potentiometers which control 2D movement by generating analog signals. The joystick also has a push button that could be used for special applications. When the module is in working mode, it will output two analog values, representing two directions.Compared to a normal joystick, its output values are restricted to a smaller range (i.e. 200~800), only when being pressed that the X value will be set to 1023 and the MCU can detect the action of pressing.
Model: COM90133P

Features

• Grove Interface
• 5V/3.3V Compatible
• Analog Output

Application Ideas

• Game Controller
• Robot remote

Specifications

Item	Min	Typical	Max	Unit
Working Voltage	4.75	5.0	5.25	V
Output Analog Value （X coordinate）	206	516	798	\
Output Analog Value （Y coordinate）	203	507	797	\

Usage

The Grove - Thumb Joystick is an analog device that outputs analog signal ranging from 0 to 1023. That requires us to use the analog port of Arduino to take the readings.

1. Connect the module to the A0/A1 of Grove - Basic Shield using the 4-pin grove cable.
2. Plug the Grove - Basic Shield into Arduino.
3. Connect Arduino to PC by using a USB cable.

4. Copy and paste code below to a new Arduino sketch. Please click here if you do not know how to upload.

/*
  Thumb Joystick demo v1.0
by:http://www.seeedstudio.com
 connec the module to A0&A1 for using;
 */
 
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);
}

5. You can check the values of the output analog signals by opening the Serial Monitor.

The output value from the analog port of Arduino can be converted to the corresponding resistance using the formula:R=(float)(1023-sensorValue)*10/sensorValue.

Resources

Grove-Thumb Joystick Eagle File

Support

Ask questions on Seeed Forum.