Latest Optical Sensors Education

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Digital Display Circuits

Worksheets - Optical Sensors

What is the purpose of a seven-segment decoder circuit? What is a…

Optoelectronic Devices

Worksheets - Optical Sensors

In this circuit, the electric motor is supposed to turn on whenever…

Si Lab - Light Sensor (LED Photodetector)

Textbook

In this hands-on semiconductor electronics experiment, use an LED as a light-sensitive photodetector and learn how to use a bipolar transistor in a common-emitter amplifier configuration.

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Special-purpose Diodes

Textbook

Schottky diodes Schottky diodes are constructed of a metal-to-N…

Programmable Logic Controllers (PLC)

Textbook

Before the advent of solid-state logic circuits, logical control…

Display Tubes

Textbook

In addition to performing tasks of amplification and switching, tubes…

555 Lab - LED Flasher with Inductive Flyback

Textbook

In this hands-on electronics experiment, build a multiple LED flasher and learn how to use inductive flyback to generate a voltage pulse that is greater than the supply voltage.

Programmable Logic Controllers (PLC)

Textbook

Before the advent of solid-state logic circuits, logical control…

Si Lab - Light Sensor (LED Photodetector)

Textbook

In this hands-on semiconductor electronics experiment, use an LED as a light-sensitive photodetector and learn how to use a bipolar transistor in a common-emitter amplifier configuration.

Series LED Resistor Calculator

Tools

This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use.

555 Lab - Red LED Flasher

Textbook

In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.

555 Lab - Blue LED Flasher With Voltage Doubler

Textbook

In this hands-on electronics experiment, build a blue LED flasher using a 555 timer and learn the basic theory of a voltage doubler using a transistor switch and a capacitor.

Karnaugh Mapping

Worksheets - Optical Sensors

Identify each of these logic gates by name, and complete their…

Digital Lab - 10-bit Flashing LED Sequencer

Textbook

In this hands-on electronics experiment, build and test an automated circuit that sequentially flashes 10 LED, and learn about counters, frequency dividers, and switch debouncing.

Optoelectronic Devices

Worksheets - Optical Sensors

In this circuit, the electric motor is supposed to turn on whenever…

Design Project: LED Stroboscope

Worksheets - Optical Sensors

A technician uses a stroboscope to “freeze” the rotation of a…

Si Lab - Bipolar Transistor as a Switch

Textbook

In this hands-on semiconductor electronics experiment, use a bipolar junction transistor (BJT) to switch an LED and learn about the current their amplification.

Convert MCD to Lumens

Tools

This calculator is useful for calculating the luminous flux for LEDs where the angle is known.

Digital Lab - Digital Combination Lock

Textbook

In this hands-on electronics experiment, build a digital combination lock with LED output indicators and learn about XOR gate functionality and how to implement NOR logic functionality using diodes.

555 Lab - Advanced Red LED Flasher

Textbook

In this hands-on electronics experiment, build a red LED flasher with a transistor drive to control the current and learn how to use transistors to provide current gain and how to limit LED current.

Digital Display Circuits

Worksheets - Optical Sensors

What is the purpose of a seven-segment decoder circuit? What is a…

Digital Lab - 7-segment LED Display

Textbook

In this hands-on electronics experiment, you will control a 7-segment binary-coded decimal (BCD) display and learn about active-low and active-high logic inputs.

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

Special-purpose Diodes

Textbook

Schottky diodes Schottky diodes are constructed of a metal-to-N…

AC Lab - Automotive Alternator as AC Generator

Textbook

In this hands-on AC electronics experiment, you will use an automotive alternator to generate three-phase AC voltage and learn how alternators can function as both generators and motors.

Practical Considerations - Batteries

Textbook

When connecting batteries together to form larger “banks”…

Contributors (2)

Textbook

Contributors to this chapter are listed in chronological order of…

Si Lab - Full-wave Bridge Rectifier

Textbook

In this hands-on semiconductor electronics experiment, build a full-wave bridge rectifier using silicon diodes and learn some of this circuit's advantages and disadvantages.

Systems of Numeration

Textbook

Roman Numerals The Romans devised a system that was a substantial…

Basic Logic Gate Troubleshooting

Worksheets - Optical Sensors

Counting practice: count from zero to thirty-one in binary, octal, and…

Series Circuits and the Application of Ohm’s Law

Textbook

In this introduction to series resistance circuits, we will explain…

An Analogy for Divided Feedback

Textbook

A helpful analogy for understanding divided feedback amplifier…

What is the Difference Between Series and Parallel Circuits?

Textbook

Circuits consisting of just one battery and one load resistance are…

The S-R Latch

Textbook

A bistable multivibrator has two stable states, as indicated by the…

DC Motor Theory

Worksheets - Optical Sensors

If the ends of a wire loop are attached to two half-circular metal…

Basic Electromagnetism and Electromagnetic Induction

Worksheets - Optical Sensors

When lightning strikes, nearby magnetic compass needles may be seen to…

Connectors

Textbook

An electrical connector, is an electro-mechanical device used to join…

Stepper Motors

Textbook

Stepper Motor vs Servo Motor A stepper motor is a…

AC Resistor Circuits (Inductive)

Textbook

Instantaneous Values in AC Circuits Pure resistive AC circuit:…

Wire Types and Sizes

Worksheets - Optical Sensors

Most electrical wire is covered in a rubber or plastic coating called…

Building Series-Parallel Resistor Circuits

Textbook

Once again, when building battery/resistor circuits, the student or…

Parallel Circuits and the Application of Ohm’s Law

Textbook

In this introduction to parallel resistance circuits, we will explain…

Stepper Motor Calculator

Tools

A tool designed to calculate the maximum speed, minimum time per step and maximum power of a stepper motor

Electrical Isolation

Textbook

SPICE analysis of Electrical Isolation Aside from the ability to…