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Raspberry Pi Cookbook, 4th Edition
book

Raspberry Pi Cookbook, 4th Edition

by Simon Monk
December 2022
Beginner to intermediate content levelBeginner to intermediate
618 pages
12h 41m
English
O'Reilly Media, Inc.
Book available
Content preview from Raspberry Pi Cookbook, 4th Edition

Chapter 15. Displays

15.0 Introduction

Although the Raspberry Pi can use a monitor or TV as a display, it is often nice to use a smaller, more specialized display with it. In this chapter, we explore a range of different displays that can be attached to a Raspberry Pi.

An alternative to attaching special-purpose displays as described in this chapter is to attach a monitor (this can be a small one) to your Raspberry Pi or even use a phone or tablet connected over VNC.

15.1 Using a Four-Digit LED Display

Problem

You want to display a four-digit number in an old-fashioned, seven-segment LED display.

Solution

Attach an Inter-Integrated Circuit (I2C) LED module, such as the model shown in Figure 15-1, to a Raspberry Pi using female-to-female jumper wires.

Figure 15-1. Seven-segment LED display with a Raspberry Pi

To make this recipe, you’ll need the following:

The connections between the Raspberry Pi and the module are as follows:

  • VCC (+) on the display to 5V on the Raspberry Pi general-purpose input/output (GPIO) connector

  • GND (–) on the display to GND on the Raspberry Pi GPIO connector

  • SDA (D) on the display to GPIO 2 (SDA) on the Raspberry Pi GPIO connector

  • SCL (C) on the display to GPIO 3 (SCL) on the Raspberry Pi GPIO connector ...

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Publisher Resources

ISBN: 9781098130916Errata PageSupplemental Content