From ede898fe5f786d261e1b1791ac102e9cf3fa7366 Mon Sep 17 00:00:00 2001 From: Florian Pritz Date: Sun, 28 Jul 2013 14:12:59 +0200 Subject: inital commit Signed-off-by: Florian Pritz --- src/Bounce.h | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 src/Bounce.h (limited to 'src/Bounce.h') diff --git a/src/Bounce.h b/src/Bounce.h new file mode 100644 index 0000000..68cdbd8 --- /dev/null +++ b/src/Bounce.h @@ -0,0 +1,71 @@ + +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, + * MA 02110-1301, USA. + */ + + + +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * + Main code by Thomas O Fredericks + Rebounce and duration functions contributed by Eric Lowry + Write function contributed by Jim Schimpf + risingEdge and fallingEdge contributed by Tom Harkaway +* * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +#ifndef Bounce_h +#define Bounce_h + +#include + +class Bounce +{ + +public: + // Initialize + Bounce(); + Bounce(uint8_t pin, unsigned long interval_millis ); + // Sets the debounce interval + void interval(unsigned long interval_millis); + // Updates the pin + // Returns 1 if the state changed + // Returns 0 if the state did not change + int update(); + // Forces the pin to signal a change (through update()) in X milliseconds + // even if the state does not actually change + // Example: press and hold a button and have it repeat every X milliseconds + void rebounce(unsigned long interval); + // Returns the updated pin state + int read(); + // Sets the stored pin state + void write(int new_state); + // Returns the number of milliseconds the pin has been in the current state + unsigned long duration(); + // The risingEdge method is true for one scan after the de-bounced input goes from off-to-on. + bool risingEdge(); + // The fallingEdge method it true for one scan after the de-bounced input goes from on-to-off. + bool fallingEdge(); + +protected: + int debounce(); + unsigned long previous_millis, interval_millis, rebounce_millis; + uint8_t state; + uint8_t pin; + uint8_t stateChanged; +}; + +#endif + + -- cgit v1.2.3-24-g4f1b