60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
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// "Readers" represent different methods for reading the state of a pin.
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// They also include debouncing logic using the Bounce2 library, when appropriate.
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#ifndef _READER_H_
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#define _READER_H_
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#include <Bounce2.h>
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#include <Mux.h>
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// The abstract base class - a very simple interface
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class Reader {
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public:
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Reader(bool inverted);
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virtual bool Update() = 0; // should return true if the state of the pin has changed
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bool On();
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protected:
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uint8_t getMode(bool pullup);
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Bounce bouncer;
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bool inverted;
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};
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// A standard reader; the button is connected directly to a switch
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class DirectReader {
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public:
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DirectReader(uint8_t pin, bool inverted = true);
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bool Update();
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bool On();
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};
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// The button is connected to a Multiplexer channel
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class MuxReader {
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public:
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MuxReader(uint8_t channel, Mux* mux, bool inverted = true);
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bool Update();
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bool On();
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protected:
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Mux * mux;
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};
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// The button is connected via a scan matrix
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// "row" should always be the input, with "col" the selecter.
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class MatrixReader {
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public:
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MatrixReader(uint8_t row, uint8_t col, bool inverted = true);
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bool Update();
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bool On();
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protected:
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uint8_t col;
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};
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#endif
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