L4: Fading an LED - Physical Computing
Arduino UNO Rev3 with Long Pins | Arduino Documentation | Arduino Documentation
Arduino pinMode on Analog Inputs - Bald Engineer
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Multiple Push Buttons on One Arduino Input - The DIY Life
Tutorial 20: Arduino Analog Input / Output - Programming Electronics Academy
Lab: Digital Input and Output with an Arduino – ITP Physical Computing
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Arduino Uno - 5V to input pin - General Electronics - Arduino Forum
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Arduino port register manipulation control tutorial
Arduino Uno Pins - A Complete Practical Guide - The Robotics Back-End
What is an Arduino? - SparkFun Learn
How to Use the Arduino's Digital I/O - Projects
Arduino project: read a digital input
Arduino UNO Rev3 with Long Pins | Arduino Documentation | Arduino Documentation
Android Basics and User Interfaces
InputPullupSerial | Arduino Documentation | Arduino Documentation
Increase Digital Pins of Your Arduino Using the 74HC595 (IOExtension Module With Arduino Library) : 5 Steps - Instructables
Arduino use Analog pins as Digital pin - YouTube
Digital Input Pull-Up Resistor | Arduino Documentation | Arduino Documentation
Intro to Arduino: Digital Input and Output (I/O) – NightShade Electronics
arduino uno - Use all pins As digital I/O - Arduino Stack Exchange
