25 lines
447 B
C
25 lines
447 B
C
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// A state-keeping class used with MatrixReader. Keeps track of which column is active,
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// switches between them.
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#ifndef _MATRIX_H_
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#define _MATRIX_H_
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#include <Arduino.h>
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class Matrix {
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public:
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Matrix(uint8_t *columns, bool inverted=true);
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void Activate(uint8_t column);
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private:
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void _enable(uint8_t pin);
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void _disable(uint8_t pin);
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uint8_t* columns;
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uint8_t active_pin;
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uint8_t num_columns;
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bool inverted;
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};
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#endif
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