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Input/Output. I/O usually refers to the capability of a pin on a microcontroller of being able to both send and receive information (a data signal).

Input can be either an analog (commonly a voltage between 0 and 5 volts (or 3.3 v) ) signal or a digital signal (0 volts or 5 volts (3.3 volts)). To process an analog input, an analog to digital converter (ADC) is required. Thankfully, many micro controllers include this.

Output can also either be a digital signal (0 or 5/3.3v) or an analog signal which is created by using Pulse Width Modulation (PWM).

This page is an Article on bildr. Articles are pages that define or explain a concept, method, or generic item.

NOTE: All information contained within this article is pure opinion. Although this article is intended to help people, it may contain faulty or misleading information. This article is not to be considered professional opinion or advice, and is in no way a replacement for reading all safety/instructional documentation. Always remember to protect yourself when handling/using hazardous materials, as well as test new techniques before using them on projects/work intended to be handed in or used.

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