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Topic: A Simple Keyboard Question (Read 847 times) previous topic - next topic


Hi all!

I am building a flight simulator cockpit, and I have three knobs/rotary encoders which I am trying to interface. None of the arduino-native programs designed to interface arduino to fsx work, as they can't communicate with the aircraft I am using. So, I have a different idea:

I would like to program each encoder so that it will send a keystroke when turned. i.e. turning encoder 1 to the left sends "q" and turning encoder 1 to the right sends "a".

I already have a script that uses serial.print to desplay each turn on the serial monitor:

#include "math.h"
#include "Quadrature.h"
Quadrature quad1(2, 3);
Quadrature quad2(4, 5);
Quadrature quad3(6, 7);

long Xold1;// the first encoder "old" reading
long Xold2;// the second encoder "old" reading
long Xold3;// the third encoder "old" reading

void setup() {

void loop() {
  long X1 =(quad1.position());
    if (X1 != Xold1){ 
      if (X1 > Xold1) {Serial.print("D740");}
      if (X1 < Xold1) {Serial.print("D750");}
      Xold1 = X1;     // overwrites the old reading with the new one.
      }//end of quad1 read
long X2 =(quad2.position());
    if (X2 != Xold2){ 
      if (X2 > Xold2) {Serial.print("D760");}
      if (X2 < Xold2) {Serial.print("D770");}
      Xold2 = X2;     // overwrites the old reading with the new one.
      }//end of quad2 read

long X3 =(quad3.position());
    if (X3 != Xold3){ 
      if (X3 > Xold3) {Serial.print("D780");}
      if (X3 < Xold3) {Serial.print("D790");}
      Xold3 = X3;     // overwrites the old reading with the new one.
      }//end of quad3 read

If this program could be used at all, that would be great as well.

Thanks in advance!



If you don't mind to do simple simple circuit like :
That way the Direction decode done by hardware

1. Let's name each output as : 'Negative' and 'Positive' respectively
2. Let's name each set (encoder+circuit) as :
a. Yaw
b. Pitch
c. Roll
3. Use of PinChangeInt
4. Here is what in my mind

Code: [Select]
#include <PinChangeInt.h>
#define PinYawPos 3
#define PinYawNeg 4
#define PinPitchPos 6
#define PinPitchNeg 7
#define PinRollPos 6
#define PinRollNeg 7
void setup() {
    pinMode(PinYawPos, INPUT);
    digitalWrite(PinYawPos, HIGH);
    PCintPort::attachInterrupt(PinYawPos, YawPos, CHANGE);

    pinMode(PinYawNeg, INPUT);
    digitalWrite(PinYawNeg, HIGH);
    PCintPort::attachInterrupt(PinYawNeg, YawNeg, CHANGE);

    pinMode(PinPitchPos, INPUT);
    digitalWrite(PinPitchPos, HIGH);
    PCintPort::attachInterrupt(PinPitchPos, PitchPos, CHANGE);

    pinMode(PinPitchNeg, INPUT);
    digitalWrite(PinPitchNeg, HIGH);
    PCintPort::attachInterrupt(PinPitchNeg, PitchNeg, CHANGE);

    pinMode(PinRollPos, INPUT);
    digitalWrite(PinRollPos, HIGH);
    PCintPort::attachInterrupt(PinRollPos, RollPos, CHANGE);

    pinMode(PinRollNeg, INPUT);
    digitalWrite(PinRollNeg, HIGH);
    PCintPort::attachInterrupt(PinRollNeg, RollNeg, CHANGE);

    Serial.println("Yaw Pitch Roll");

void loop(){}
void YawPos(){
void YawNeg(){
void PitchPos(){
void PitchNeg(){
void RollPos(){
void RollNeg(){

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