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Lesson 20: Controlling a DC motor Speed with PWM
Using a Potentiometer
20.1 Overview
In this lesson we are going to learn how to control the speed of a DC motor.
20.2 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 1 KΩ resistor
1 x 2 KΩ resistor
1 x 10 KΩ resistor
1 x 10 uF Capacitor
2 x 100 nF Capacitor
2 x Diode
1 x DC Motor
1 x Propeller
1 x 10 k Potentiometer
1 x 2N2222 NPN Transistor
11 x M-M wires (Male to Male jumper wires)
20.3 Circuit
Schematic
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Electronics Starter Kit r.00 www.plusivo.com
