Page 38 - Electronics Starter Kit_EN

Lesson 9: LED Flasher with NE555

9.1 Overview

In this lesson we are going to learn how to use NE555, to make LED flasher.

9.2 Components Required

1 x Breadboard Power Supply
1 x 9V Battery
1 x 9V Battery Connector
1 x Breadboard 830p
1 x NE555 Timer
1 x 5mm red LED
1 x 220 Ω resistor
1 x 10 KΩ resistor
1 x 100 KΩ resistor
1 x 10 uF Capacitor
1 x 100 nF Capacitor
7 x M-M wires (Male to Male jumper wires)

9.3 Component Introduction

NE555 Timer
We call it a 555 timer because there are three 5kΩ resistors inside of it, as you can see in the
block diagram below.

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