library.properties examples

Debounce or de-glitch digital input without MCU expensive task or any additional hardware. Glitch filter can filter a glitch 1/2 period of master clock. Debounce filter can filter a pulse of less than 1/2 Period of a Programmable Divided Slow Clock.

you can refer to DUE pinout diagram find with port pin is associated with Arduino pin.

Here all DUE's pins Schmitt filter capable:

• A0 to A11
• canRX
• digital: 0, 2, 5, 7, 8, 9, 11,12,13, SDA1, SCL1
• digital: 4 ( on port C.26 )
• digital: 10 ( on port A.28 )
• digital: 22 to 31
• digital 33 to 40
• digital 42, 43, 45, 46, 47, 49, 50, 51, 52

• Download DUE_Schmitt library via libraries manager
• Include header into sketch

#include "DUE_schmitt.h"

• add pin you want to debounce or de-glitch

	// ( pin )
	Schmitt.debounceEnable(22); ///PIOB[26]
	Schmitt.glitchEnable(52); //PIOB[21]

• For debounce, select the debounce value needed in ms, that make debonce time to 0,061 to 1000ms. Timing is applied for the entire PIO port

	// Debounce period is fo each port once, could set it directly or by passing a pin member of this port
	// (port or pin, value)
	Schmitt.debouncePeriodSet(PIOB, 200); //set with port
	Schmitt.debouncePeriodSet(48, 500); //max //set with pin

• To validate your config, you can print to serial the debounce time of all port.

Schmitt.pioDebouncePeriod(Serial);

• To desale a glitch of a debounce pin.

	// ( pin )
	Schmitt.disable(22);

• Pre-instanciated class object [Schmitt]

• Add Variadic function: debounceEnable(), glitchEnable(), and disable().

	Schmitt.debounceEnable(22, 45, 46);
	Schmitt.glitchEnable(52, 50, 51);
	Schmitt.disable(22, 45, 46, 50, 51, 52);

• Change API function for reference to nest call.

Schmitt.debounceEnable(22).glitchEnable(52).debouncePeriodSet(PIOB, 4096);

• Add Discard "reserve by DUE board" pins like JTAG to API function