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Raspberry Pi 3 Cookbook for Python Programmers - Third Edition
book

Raspberry Pi 3 Cookbook for Python Programmers - Third Edition

by Steven Lawrence Fernandes, Tim Cox
April 2018
Beginner content levelBeginner
552 pages
13h 58m
English
Packt Publishing
Content preview from Raspberry Pi 3 Cookbook for Python Programmers - Third Edition

Getting ready

Most common servos will have three wires and a three pin connector, as follows:

Black/Brown

Red

Orange/White/Yellow/Blue

Ground

Positive supply (typically 5V for small servos)

Signal

While it is usually possible to power the servos directly from the Raspberry Pi 5V pins on the GPIO header, they can draw a significant amount of current when moving. Unless you have a very good power supply, this can cause the Raspberry Pi to reset unexpectedly, risking corrupting the SD card. Therefore, it is recommended that you power them separately; for example, with an additional USB power supply and cable connected to the ground and positive supply.

By default, the servos can be wired as follows:

Servo

0

1

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Publisher Resources

ISBN: 9781788629874Supplemental Content