Arduino - MouseMove - Weblessons

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;
}