Table of Contents

  1. Resistors
  2. LEDs
  3. Capacitors

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An overview of resistors and how they work.

1) What is a Resistor?


A resistor is an electrical component that limits, or 'resists', the flow of electrons in a circuit.

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2) Reading a Resistor

To read a resistor's value, you must use its color-coded bands and a resistor color code chart.

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3) Using a Resistor

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Using a resistor is relatively simple; since it has no polarity, it can be placed directly into a circuit

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An overview of LEDs, how they work, and sample projects on controlling LEDs.

1) What is an LED?

An LED (Light Emitting Diode) is an electronics device that emits light when current passes through it...

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2) How to use an LED

LEDs have polarity and must be wired properly in order to operate. Improper wiring can cause damage to the LED...
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3) Flash an LED

In this project, you will learn how to flash an LED using one of the Arduino's digital pins.

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4) Flash Two LEDs

This project adds a second LED and teaches you how to program two LEDs simultaneously.

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5) Dim an LED

At the end of this project you will be able to program two LEDs to emit varying brightnesses of light at the same time.

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6) Pulse Width Modulation

PWM is a digital signal manipulation method that is used to indirectly control many electronic devices.


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