A replacement for InterruptIn that debounces the interrupt.
Dependents: D7A_Demo-Get-started CVtoOSCConverter EE3501keypad D7A_Localisation ... more
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Example code:
#include "DebouncedInterrupt.h" DebouncedInterrupt up_button(USER_BUTTON); void onUp() { // Do Something } int main() { // Will immediatly call function and ignore other interrupts until timeout up_button.attach(&onUp, IRQ_FALL, 1000, true); // Will call function only if button has been held for the specified time //up_button.attach(&onUp, IRQ_FALL, 500, false); while(1) {} }
DebounceInterrupts.cpp
- Committer:
- kandangath
- Date:
- 2014-02-18
- Revision:
- 9:970b74eb0407
- Parent:
- 8:4b3ff16d5f91
File content as of revision 9:970b74eb0407:
#include "DebounceInterrupts.h" Timeout timeout; DebounceInterrupts::DebounceInterrupts(void (*fptr)(void), InterruptIn *interruptIn, const interruptTrigger& trigger, const unsigned int& debounce_ms) { fCallback = fptr; _last_debounce_count = _debounce_count = 0; switch(trigger) { case INT_RISE: interruptIn->rise(this, &DebounceInterrupts::_onInterrupt); break; case INT_FALL: interruptIn->fall(this, &DebounceInterrupts::_onInterrupt); break; default: break; } _debounce_us = 1000*debounce_ms; } DebounceInterrupts::~DebounceInterrupts() { } void DebounceInterrupts::_callback() { _last_debounce_count = _debounce_count; _debounce_count = 0; fCallback(); } void DebounceInterrupts::_onInterrupt() { _debounce_count++; timeout.attach_us(this, &DebounceInterrupts::_callback, _debounce_us); } unsigned int DebounceInterrupts::get_debounce() { return _last_debounce_count; }