Difference between revisions of "The Use of Joystick Sensor"

Outline

The Microduino Joystick sensor is two analog output devices in one. There are resistors on the X-axis and Y-axis that each output an analog value corresponding to the position of the joystick on that axis. This sensor is great for controlling projects, especially ones that move.

Specification

• Electrical Specifications
  • Analog Output Device
  • Analog Output: 0-1023 (with Microduino Core modules)
• Technical Specifications
  • Analog Output Corresponding to X and Y-axis displacement
• Dimensions
  • Switch: 17mm x 17mm
  • Board: 20mm x 24mm
• Connection Interface
  • Pins: Signal 1 (X-Axis), Signal 2 (Y-Axis), VCC (power) and GND (ground)
  • Must be connected to analog capable ports (A0-A7)

Development

Equipment

• Other Hardware Equipment
  • One USB cable

Preparation

• Setup 1：Connect Microduino-Joystick and the Hub 's A0 and A1 analog ports.

• Setup 2：Stack the CoreUSB, Hub and Light together and then connect them to the computer with a USB cable.

Experiment: Detect Analog Joystick Value

• Open Arduino IDE and copy the following code into IDE.

#define Pin_X A1
#define Pin_Y A0

void setup() {
  Serial.begin(9600);    //Serial initializing 
  pinMode(Pin_X,INPUT);
  pinMode(Pin_Y,INPUT);
}

void loop() {
  int sensorValueX = analogRead(Pin_X);      //X-axis input 
  int sensorValueY = analogRead(Pin_Y);      //Y-axis input 
  Serial.print("ValueX:");
  Serial.print(sensorValueX);
  Serial.print(",");
  Serial.print("ValueY:");
  Serial.println(sensorValueY);
  delay(100);
}

• Select the right board from Tools→Serial Port in Arduino IDE and download the program.
  
• After the download, you can open the serial monitor. The displayed note reflects the current displacement analog values on both X-and Y-axis.

• Result
  • The right shift value decrease on the X-axis, close to zero while the left shift value increases and gets close to 1,023.
  • The top shift value decrease on the Y-axis, close to zero while the downward shift value increases and gets close to 1,023.

Program Debugging

• Use“analogRead(XX);” to read sensor's input analog value and judge the displacement on both the X-axis and Y-axis.

Application

• To control object movement in two-dimensional space.
• Game joystick

Video