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38 lines
577 B
C++

/*
* Rotary encoder library for Arduino.
*/
#ifndef rotary_h
#define rotary_h
#include "Arduino.h"
// Enable this to emit codes twice per step.
//#define HALF_STEP
// Enable weak pullups
#define ENABLE_PULLUPS
// Values returned by 'process'
// No complete step yet.
#define DIR_NONE 0x0
// Clockwise step.
#define DIR_CW 0x10
// Anti-clockwise step.
#define DIR_CCW 0x20
class Rotary
{
public:
Rotary(char, char);
// Process pin(s)
unsigned char process();
private:
unsigned char state;
unsigned char pin1;
unsigned char pin2;
};
#endif