In this project, we will make an air mouse and gesture control mouse using an Arduino Leonardo and MPU6050 accelerometer and gyroscope module. The project depends on 2 key components: the MPU6050 module and Arduino Leonardo. The MPU6050 helps us to collect the data for the 3D pose of ” AIR MOUSE” along the X and Y-axis. Then board on the values of the sensor can control the mouse cursor.
The MPU6050 contains both a 3-axis Gyroscope and a 3-axis accelerometer allowing measurements of both independently, but all based around the same axes, thus eliminating the problems of cross-axis errors when using separate devices.
Arduino Leonardo is an old board but the only compatible board for this project. It has the required SCL and SDA pin for the connection of MPU6050.
#include <Wire.h>
#include <I2Cdev.h> Â Â
#include <MPU6050.h>
#include <Mouse.h>
#define LBUT 7
#define RBUT 6
int xPin = A1;
int yPin = A0;
int buttonPin = 1;
int xPosition = 0;
int yPosition = 0;
int buttonState = 0;
MPU6050 mpu;
int16_t ax, ay, az, gx, gy, gz;
int angleToDistance(int a)
{
 if (a < -80)
 {
  return -40;
 }
 else if (a < -65) {
  return -20;
 }
 else if (a < -50) {
  return -10;
 }
 else if (a < -15) {
  return -5;
 }
 else if (a < -5) {
  return -1;
 }
 else if (a > 80) {
  return 40;
 }
 else if (a > 65) {
  return 20;
 }
 else if (a > 15) {
  return 10;
 }
 else if (a > 5) {
  return 1;
 }
}
void setup() {
 // initialize serial communications at 9600 bps:
 Serial.begin(9600);
 Mouse.begin();
 pinMode(xPin, INPUT);
 pinMode(yPin, INPUT);
 //activate pull-up resistor on the push-button pin
 pinMode(buttonPin, INPUT_PULLUP);
 // For versions prior to Arduino 1.0.1
 // pinMode(buttonPin, INPUT);
 // digitalWrite(buttonPin, HIGH);
 // put your setup code here, to run once:
 pinMode(LBUT, INPUT);
 digitalWrite(LBUT, HIGH);
 pinMode(RBUT, INPUT);
 digitalWrite(RBUT, HIGH);
 Wire.begin();
 mpu.initialize();
 if (!mpu.testConnection()) {
  while (1);
 }
}
void loop() {
 mpu.getMotion6(&ax, &ay, &az, &gx, &gy, &gz);
 int vx = map(ax, -16000, 16000, 90, -90);
 int vy = map(ay, -16000, 16000, 90, -90);
 attachInterrupt(1, keyboard, CHANGE);
 attachInterrupt(7,fire,HIGH);
 Mouse.move(angleToDistance(vx), angleToDistance(vy));
 if (digitalRead(LBUT) == LOW) {
  if (!Mouse.isPressed(MOUSE_LEFT)) {
   Mouse.press(MOUSE_LEFT);
  }
 }
 else {
  if (Mouse.isPressed(MOUSE_LEFT)) {
   Mouse.release(MOUSE_LEFT);
  }
 }
 if (digitalRead(RBUT) == LOW) {
  if (!Mouse.isPressed(MOUSE_RIGHT)) {
   Mouse.press(MOUSE_RIGHT);
  }
 }
 else {
  if (Mouse.isPressed(MOUSE_RIGHT)) {
   Mouse.release(MOUSE_RIGHT);
  }
 }
 delay(20);
 xPosition = analogRead(xPin);
 yPosition = analogRead(yPin);
 buttonState = digitalRead(buttonPin);
 Serial.print(“X: “);
 Serial.print(xPosition);
 Serial.print(” | Y: “);
 Serial.print(yPosition);
 Serial.print(” | Button: “);
 Serial.println(buttonState);
 // delay(100); // add some delay between reads
}
void keyboard()
{
 xPosition = analogRead(xPin);
 yPosition = analogRead(yPin);
 buttonState = digitalRead(buttonPin);
 Serial.print(“X: “);
 Serial.print(xPosition);
 Serial.print(” | Y: “);
 Serial.print(yPosition);
 Serial.print(” | Button: “);
 Serial.println(buttonState);
 //delay(100); // add some delay between reads
}
void fire()
{
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}
Welcome to the Arduino-based project in which you can control the gesture of the MPU6050 module. The first push button is for the left click and the second push button is for the right click.
Project Basic R3 Starter Kit compatible1 ×₹1,690.94
