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Arduino I2C LCD 1602 Display Joystick

Using the joystick with Arduino

Purpose of this tutorial:

In this tutorial we will see how to display the direction of the joystick controller on an I2C LCD 1602 Display with Arduino:

  • When the user points the joystick to the right, the word “Right” is displayed.
  • When the user points the joystick to the left, the word “Left” is displayed.
  • When the user points the joystick controller forward, the word “Forward” is displayed.
  • When the user moves the joystick to the rear, the word “Backward” is displayed.
  • When the user presses the joystick button, the word “pressed button” is displayed.

Necessary components 

  • Arduino UNO
  • Joystick
  • Connecting wires
  • I2C LCD display

The joystick is a position sensor that returns two analog values ​​representing its X,Y position. It can be used as an interface to navigate in a menu or to control an object in direction or speed. It is commonly found on joysticks for video games, remote controls for model making or even on dashboards of industrial machines.

The joystick is composed of two mechanically coupled potentiometers placed in such a way as to detect the horizontal and vertical components of the joystick. Thus the resistance values ​​of the potentiometers vary independently according to the position of the joystick. There is usually a push button that activates when you press the joystick.

Mounting

To make the assembly we connect:

For joystick :

  •  5V pin to 3.3V pin of Arduino

  • GND pin to GND pin of Arduino

  • VRx pin to A0 pin of Arduino

  • VRy pin to A1 pin of Arduino

  • SW pin to pin 2 of Arduino

For LCD display:

  • VCC pin to 5V pin of Arduino

  • GND pin to GND pin of Arduino

  • SDA pin to A4 of Arduino

  • SCL pin to A5 pin of Arduino

Program Arduino:

This program allows the Arduino board to read the different values ​​of the joystick inputs and display the direction of the joystick on the I2C LCD 1602 display.

Note: You must download the LiquidCrystal_I2C library(Download).




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