Page 6 - Electronics Starter Kit_EN

Introduction

In this guide, you are going to learn how to use electronic components (LED, resistor, transistor,
NE555, etc), without using microcontrollers and programming. You will learn how to make your
own smart circuit and how to modify it. You will only need a few components to build a smart
system.

Lesson 1: Lighting Up an LED

1.1 Overview

In this lesson you will learn how to light up an LED.

1.2 Components Required

1 x Breadboard Power Supply
1 x 9V Battery
1 x 9V Battery Connector
1 x Breadboard 830p
1 x 5mm red LED
1 x 220 Ω resistor
2 x M-M wires (Male to Male jumper wires)

1.3 Component Introduction

Resistors

Resistors resist the flow of the current, which means higher value of the resistor means that the
more it can resist and less current will flow through it.

The unit of resistance is Ohm with this symbol Ω. We also represent the values of resistors in
kΩ (1,000 Ω) and MΩ (1,000,000 Ω), called kilo-ohms and mega-ohms.

Resistors are not polarized, so no matter if you connect the first lead to the positive of the
battery and vice versa.

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