This article, part of AAC’s Analog Circuit Collection, presents a straightforward way to precisely control the current through an LED (or through a typical resistive load).
February 05, 2018 by Robert Keim
Blending colors may sound elementary but it is vital in drawing attention to your project with RGB LEDs!
November 08, 2017 by Ryan Jones
Let's interface an ultrasonic sensor and a lighting system! In this project, we'll design a sensor subsystem and then use it in a parking sensor application.
November 02, 2017 by Nick Davis
In this article, we talk about the basics of optoelectronics, including a brief lecture on photons. Also, various optoelectronic devices will be discussed including lamps, LEDs, photodiodes, photoresistors, and laser diodes.
July 10, 2017 by Nick Davis
Be the spectacle at this summer's music festival with these sound activated rave goggles!
July 07, 2017 by Ryan Jones
Learn about the laser diode, including package types, applications, drive circuitry, and some laser diode specifications.
June 12, 2017 by Nick Davis
ICs such as the BCR401U provide high-quality control of LEDs for applications that require something better than the typical series-resistor arrangement.
May 25, 2017 by Robert Keim
In this article, we’ll take a look at the ADPD10x series, which gives you an example of how a highly integrated IC can simplify your optical applications.
May 08, 2017 by Robert Keim
Despite the convenience of CMOS imagers, CCD imagers still have their place. And if you really need low-light performance, consider a device with EMCCD technology, such as the KAE-02152.
May 03, 2017 by Robert Keim
The grid-EYE click provides a user-friendly introduction to advanced thermal sensing and detection.
April 12, 2017 by Robert Keim
Let’s take a look at how to make your LED array more robust; we’ll use the PLEDxN series from Littelfuse as an example.
March 30, 2017 by Robert Keim
The AS7261 is a highly integrated sensor that provides optical measurements via a digital interface.
March 23, 2017 by Robert Keim
Using a custom framework (RIOT) to control an LED with a networked computer.
February 08, 2017 by Robin Mitchell
LED ring flashes and lights can be a valuable tool for photographers. In this tutorial, we are going to build our own ring light out of LEDs!
January 26, 2017 by Alex Udanis
Tracking an infrared light source is not as difficult as you might think; a 14-pin PICAXE, a stepper motor with a driver IC, three phototransistors, and a few other components will do the trick.
January 17, 2017 by Charles R. Hampton
Get acquainted with using I2C with the Quark D2000 development board by interfacing an ambient light sensor and an LCD.
January 12, 2017 by Raymond Genovese
When you have multiple LEDs with a common anode or common cathode, can you use just one current-limiting resistor? Let’s take a look.
November 15, 2016 by Robert Keim
Freeze moments in time to easily produce extraordinary close-up pictures with your digital camera, an Arduino, and these simple circuits.
November 14, 2016 by Raymond Genovese
In the final installment, we build our light-blade and assemble the electronics into the hilt.
October 21, 2016 by Jeremy Lee
In part 3, we compile the firmware and build the controller at the heart of the Saber, then do initial testing and diagnostics.
October 20, 2016 by Jeremy Lee
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