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66 lines
1.4 KiB
C++
66 lines
1.4 KiB
C++
#pragma once
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//
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// FILE: rotaryDecoder.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.3.1
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// DATE: 2021-05-08
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// PURPOSE: Arduino library for rotary decoder
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// URL: https://github.com/RobTillaart/rotaryDecoder
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#include "Arduino.h"
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#include "Wire.h"
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#define ROTARY_DECODER_LIB_VERSION (F("0.3.1"))
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class rotaryDecoder
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{
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public:
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explicit rotaryDecoder(const int8_t address, TwoWire *wire = &Wire);
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bool begin(uint8_t count = 4);
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bool isConnected();
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uint8_t readInitialState();
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// for polling version,
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// checkChange is bit faster than a call to update
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// so useful if there are only a few updates
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bool checkChange();
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// read and update the counters
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bool update(); // assumes two directions => +1 and -1
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bool updateSingle(); // assumes single direction => + ++ +++
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// re = rotary encoder
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// returns 0, false if re > 3.
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int32_t getValue(uint8_t re);
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bool setValue(uint8_t re, int32_t value = 0);
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// READ - WRITE interface
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uint8_t read1(uint8_t pin);
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bool write1(uint8_t pin, uint8_t value);
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uint8_t read8();
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bool write8(uint8_t value);
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// DEBUG
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uint8_t getLastPosition(uint8_t re);
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protected:
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uint8_t _count = 0;
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uint8_t _lastValue = 0;
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uint8_t _lastPos[4] = { 0, 0, 0, 0 };
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int32_t _encoder[4] = { 0, 0, 0, 0 };
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uint8_t _address;
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TwoWire * _wire;
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};
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// -- END OF FILE --
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