Sometimes when you press a button once, it registers as two or more presses. This page offers a solution for Arduino. The hardware solution also applies to other circuits including ones used with a Raspberry Pi computers.
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This is an article in the Raspberry Pi User Forums that deals with handling the bouncing signal when a button switch is pressed and released. The code makes use of the RPi.GPIO to access the pins on the GPIO.
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This project is intended to provide a friendly object-oriented I/O API and implementation libraries for Java Programmers to access the full I/O capabilities of the Raspberry Pi platform. This project abstracts the low-level native integration and interrupt monitoring to enable Java programmers to focus on implementing their application business logic
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A presentations about Java library Pi4J. The presentation was presented by Robert Savage, Software Architect, MTS, Harman International.
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The Reference documentation for the WiringPi Library.
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The WiringPI Library is a C++ library. WiringPi is a PIN based GPIO access library written in C for the BCM2835 chip found on the Raspberry Pi board.
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The Python Module gpiozero was written after the RPi.GPIO Module. It provides a cleaner and simpler interface to accessing the Raspberry Pi GPIO.
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A Python Module that provides an interface to the GPIO on a Raspberry Pi.
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A PDF that provides the documentation for the gpiozero Python Module for accessing the GPIO on a Raspberry Pi.
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The RPi.GPIO is a Python Module that allows access to the GPIO on a Raspberry Pi. This wiki proves examples of using RPi.GPIO and information on using the module.
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