Starting a new thread since my 2 previous where a bit confusing, Let me
instead describe my problem and maybe someone can point me to a possible
solution.
please excuse me if this all looks simple but I'm some what new to java and
still learning the ropes.
I'm using an IDrive from a BMW. Its a kind of rotary and uses photo
resistors to determines what way and how many steps you rotate it. I use
this rotary to animate GUI in my app.
The way it works is that the 2 photo resistors are placed slightly offset
and are either lit or dark. when rotating the rotary it cut or lit one
photo resistors a fragment before the other. this is how I determines what
way I rotate. when the rotary is inactive both photo resistors are lit or
dark.
Right now I'm just reading the photo resistors periodically with
digitalinput.read() and I tend to miss the offset cut from time to time,
especially over bluetooth, witch makes things a bit erratic.
Does anyone have a suggestion how i should do this to catch all "pulses"?
//This is called every time in the ioio loop
public void setRotation(boolean DigitalInput1, boolean DigitalInput2){
oldA = A;
oldB = B;
oldRotation = rotation;
A = DigitalInput1;
B = DigitalInput2;
// CALCULATE ROTATION
// 1 = CW
//-1= CCW
if(A != oldA){
if(A != B){
rotation = 1;
}else{
rotation = -1;
}
}
if(B != oldB){
if(B == A){
rotation = 1;
}else{
rotation = -1;
}
}
// CALCULATES KNOB steps
if(A && B && ifChange ==0){
if(rotation == 1 && oldRotation == rotation){counter++;}
if(rotation == -1 && oldRotation == rotation){counter--;}
ifChange = 2;
}else if(!A && !B && ifChange == 2){
if(rotation == 1 && oldRotation == rotation){counter++;}
if(rotation == -1 && oldRotation == rotation){counter--;}
ifChange = 0;
}
}
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