lib/keypad/Keypad.h

Mon, 11 Mar 2024 15:35:36 +0100

author
David Douard <david.douard@sdf3.org>
date
Mon, 11 Mar 2024 15:35:36 +0100
changeset 71
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parent 66
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permissions
-rw-r--r--

Add links to sr.ht repos and add an image in the README file

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1 #ifndef KEYPAD_H
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2 #define KEYPAD_H
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3
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4 #include "mbed.h"
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5 //#include "rtos.h"
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6 #include <vector>
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9 typedef Callback<void(uint8_t, uint8_t)> keyevent_callback_t;
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11 class Keypad {
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12 public:
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13 Keypad(uint8_t nRows, DigitalIn rows[],
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14 uint8_t nColumns, DigitalOut cols[],
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15 int debounce_ms=20);
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16
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17 /** Destructor
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18 */
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19 ~Keypad();
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21 void attach(const keyevent_callback_t& kp_callback=NULL,
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22 const keyevent_callback_t& kr_callback=NULL);
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23
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24 void start(void);
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25 void stop(void);
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28 protected:
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29 std::vector<DigitalIn> _rows;
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30 std::vector<DigitalOut> _columns;
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31 int _debounce; // miliseconds
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33 void _kp();
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34 void _kr();
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35 void _keyPressed(int row);
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36 void _keyReleased(int row);
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37 void run();
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38
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39 private:
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40 keyevent_callback_t _kp_callback;
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41 keyevent_callback_t _kr_callback;
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42 bool _started;
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43 Thread _loop;
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44 //tloop.start(&loop);
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45 uint8_t _nrows;
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46 uint8_t _ncols;
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47 uint8_t *_keys;
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48 };
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51 #endif // KEYPAD_H

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