65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * *
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Main code by Thomas O Fredericks (tof@t-o-f.info)
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Previous contributions by Eric Lowry, Jim Schimpf and Tom Harkaway
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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// Uncomment the following line for "rapid fire" mode
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//#define BOUNCE_RAPID_FIRE
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#ifndef Bounce_h
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#define Bounce_h
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#include <inttypes.h>
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class Bounce
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{
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public:
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// Create an instance of the bounce library
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Bounce();
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// Attach to a pin (and also sets initial state)
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void attach(int pin);
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// Sets the debounce interval
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void interval(unsigned long interval_millis);
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// Updates the pin
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// Returns 1 if the state changed
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// Returns 0 if the state did not change
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bool update();
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// Returns the updated pin state
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uint8_t read();
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protected:
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int debounce();
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unsigned long previous_millis, interval_millis;
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uint8_t debouncedState;
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uint8_t unstableState;
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uint8_t pin;
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uint8_t stateChanged;
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};
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#endif
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