Arduino - MouseMove

Arduino

Reference Language | Libraries | Comparison | Changes

Mouse

## Mouse.move()

#### Description

Moves the cursor on a connected computer. The motion onscreen is always relative to the cursor's current location. Before using Mouse.move() you must call Mouse.begin()

WARNING: When you use the Mouse.move() command, the Arduino takes over your mouse! Make sure you have control before you use the command. A pushbutton to toggle the mouse control state is effective.

#### Syntax

Mouse.move(xVal, yPos, wheel);

#### Parameters

xVal: amount to move along the x-axis - signed char
yVal: amount to move along the y-axis - signed char
wheel: amount to move scroll wheel - signed char

#### Returns

nothing

### Example:

const int xAxis = A1; //analog sensor for X axis
const int yAxis = A2; // analog sensor for Y axis
int range = 12; // output range of X or Y movement
int responseDelay = 2; // response delay of the mouse, in ms
int threshold = range/4; // resting threshold
int center = range/2; // resting position value
int minima[] = {
1023, 1023}; // actual analogRead minima for {x, y}
int maxima[] = {
0,0}; // actual analogRead maxima for {x, y}
int axis[] = {
xAxis, yAxis}; // pin numbers for {x, y}
int mouseReading[2]; // final mouse readings for {x, y}
void setup() {
Mouse.begin();
}
void loop() {
// read and scale the two axes:
int xReading = readAxis(0);
int yReading = readAxis(1);
// move the mouse:
Mouse.move(xReading, yReading, 0);
delay(responseDelay);
}
/*
reads an axis (0 or 1 for x or y) and scales the
analog input range to a range from 0 to <range>
*/
int readAxis(int axisNumber) {
int distance = 0; // distance from center of the output range
// read the analog input:
int reading = analogRead(axis[axisNumber]);
// of the current reading exceeds the max or min for this axis,
// reset the max or min:
if (reading < minima[axisNumber]) {
minima[axisNumber] = reading;
}
if (reading > maxima[axisNumber]) {
maxima[axisNumber] = reading;
}
// map the reading from the analog input range to the output range:
reading = map(reading, minima[axisNumber], maxima[axisNumber], 0, range);
// if the output reading is outside from the
// rest position threshold, use it:
if (abs(reading - center) > threshold) {
distance = (reading - center);
}
// the Y axis needs to be inverted in order to
// map the movemment correctly:
if (axisNumber == 1) {
distance = -distance;
}
// return the distance for this axis:
return distance;
}
[Get Code]

#### See also

- Mouse.begin()
- Mouse.click()
- Mouse.end()
- Mouse.press()
- Mouse.release()
- Mouse.isPressed()

Reference Home

Corrections, suggestions, and new documentation should be posted to the Forum.

The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.

### Share

### This link has expired.
Please re-subscribe to our Newsletters.

### Subscribe to our Newsletters

Email

Please enter a valid email to subscribe

Arduino Newsletter
Arduino Store Newsletter

### Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

Arduino
via Egeo 16
Torino, 10131
Italy

###### Newsletter

- ©2015 Arduino
- Copyright Notice
- Contact us
- About us
- Careers