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How to Use the Arduino’s Digital I/O

How to Use the Arduino’s Digital I/O

The digital inputs and outputs (digital I/O) on the Arduino are what allow you to connect sensors, actuators, and other ICs to the Arduino . Learning how to use the inputs and outputs will allow you to use the Arduino to do some really useful things, such as reading switch inputs, lighting indicators, and controlling relay outputs.


Projects Jun 05, 2015 by Tim Youngblood
Make a Digital Voltmeter Using an Arduino

Make a Digital Voltmeter Using an Arduino

It's easy to make a simple digital voltmeter using an Arduino and 16x2 liquid crystal display (LCD).


Projects Jun 04, 2015 by Tim Youngblood