i am trying to diy space mouse with
- micro pro arduino
- joystick
- two push buttons (left and right buttons)
- rotary encoder module
i managed to control the mouse with joystick and buttons but i now i am try to use rotary encoder as wheel (zoom in/out - scroll up and down).
i tried to call the rotary encoder pin and control the scroll with it but no success, so how to use rotary encoder as wheel mouse in the code.
here is my code (i wrote the rotary encoder code away from the joystick and buttons for some reading purposes)
#include <Mouse.h>
int horzPin = A0; // Analog output of horizontal joystick pin
int vertPin = A1; // Analog output of vertical joystick pin
int selPin = 7; // button of sw 1
int selpin2 = 9; // button of sw 2
int vertZero, horzZero; // Stores the initial value of each axis, usually around 512
int vertValue, horzValue; // Stores current analog output of each axis
const int sensitivity = 200; // Higher sensitivity value = slower mouse, should be <= about 500
int mouseClickFlag = 0; //click check sw 1
int b1flag = 0; //click check sw2
//int invertMouse = 1; //Invert joystick based on orientation
int invertMouse = -1; //Noninverted joystick based on orientation
int encoderCLK = 2;
int encoderDT = 15;
int encoderSW = 3;
// Variables
int counter = 0;
int currentStateCLK;
int lastStateCLK;
unsigned long lastButtonPress = 0;
void setup()
{
pinMode(horzPin, INPUT); // Set both analog pins as inputs
pinMode(vertPin, INPUT);
pinMode(selPin, INPUT); // set button select pin as input
pinMode(selpin2, INPUT); // set button select pin as input
digitalWrite(selPin, HIGH); // Pull button select pin high
digitalWrite(selpin2, HIGH); // Pull button select pin high
delay(1000); // short delay to let outputs settle
vertZero = analogRead(vertPin); // get the initial values
horzZero = analogRead(horzPin); // Joystick should be in neutral position when reading these
Mouse.begin(); //Init mouse emulation
//Pin Initialization
pinMode (encoderCLK, INPUT);
pinMode (encoderDT, INPUT);
pinMode (encoderSW, INPUT);
// Read Encoders CLK inital state
lastStateCLK = digitalRead(encoderCLK);
//initialize mouse control:
Mouse.begin();
}
void loop()
{
vertValue = analogRead(vertPin) - vertZero; // read vertical offset
horzValue = analogRead(horzPin) - horzZero; // read horizontal offset
if (vertValue != 0)
Mouse.move(0, (invertMouse * (vertValue / sensitivity)), 0); // move mouse on y axis
if (horzValue != 0)
Mouse.move((invertMouse * (horzValue / sensitivity)), 0, 0); // move mouse on x axis
if ((digitalRead(selPin) == 0) && (!mouseClickFlag)) // if the button 1 is pressed
{
mouseClickFlag = 1;
Mouse.press(MOUSE_RIGHT); // click the right button down
}
else if ((digitalRead(selPin)) && (mouseClickFlag)) // if the button 1 is not pressed
{
mouseClickFlag = 0;
Mouse.release(MOUSE_RIGHT); // release the right button
}
// second button
if ((digitalRead(selpin2) == 0) && (!b1flag)) // if the button 2 is pressed
{
b1flag = 1;
Mouse.click(MOUSE_LEFT);
}
else if ((digitalRead(selpin2)) && (b1flag)) // if the button 2 is not pressed
{
b1flag = 0;
Mouse.release(MOUSE_LEFT); // release the left button
}
//Read the current state of CLK
currentStateCLK = digitalRead(encoderCLK);
// If last and current state of CLK are different, then pulse occurred
// React to only 1 state change to avoid double count
if (currentStateCLK != lastStateCLK && currentStateCLK == 1){
// If the DT state is different than the CLK state then
// the encoder is rotating CCW so decrement
if (digitalRead(encoderDT) != currentStateCLK) {
counter --;
} else {
// Encoder is rotating CW so increment
counter ++;
}
//Serial Debuging
/*Serial.print(" | Counter: ");
Serial.println(counter);*/
}
// Remember last CLK state
lastStateCLK = currentStateCLK;
// Read the button state
int btnState = digitalRead(encoderSW);
//If we detect LOW signal, button is pressed
if (btnState == LOW) {
//if 50ms have passed since last LOW pulse, it means that the
//button has been pressed, released and pressed again
if (millis() - lastButtonPress > 50) {
Mouse.click(MOUSE_MIDDLE);
//Serial Debuggin
//Serial.println("Button pressed!");
}
// Remember last button press event
lastButtonPress = millis();
}
//Move the Scroll Wheel
Mouse.move(0, 0, counter);
//Reset Counter for next move
counter = 0;
}
schematic
