You're reading from Raspberry Pi 3 Projects for Java Programmers

Product typeBook

Published inMay 2017

Reading LevelIntermediate

PublisherPackt

ISBN-139781786462121

Edition1st Edition

Languages

Java

Tools

Raspberry Pi

Concepts

Single Board Computers

Authors (3):

Rajdeep Chandra

John Sirach

Pradeeka Seneviratne

View More author details

Adding the HD44780-compatible 16x2 character display

Let's start our project by connecting the 16x2 character display to the Raspberry Pi and show some text on it using Java. When looking around on the Internet for a 16x2 character display, this will often be a HD44780-compatible one. These displays are quite affordable and are used in a lot of projects. Before we attach this display to the Raspberry Pi, we need to check what kind of backlight is being used as there are both LED and EL types. In our schematic and connections, we will be connecting a LCD with an LED backlight.

The character display has a parallel interface, which means we will need a lot of pins to connect the display. We will be communicating in 4-bit mode with the display so we do not need to use all the pins that are available. The pin setup of this kind of display is mostly as follows, ordered by pin number:

Ground
5V VCC, (not 3.3V)
Contrast...

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Raspberry Pi 3 Projects for Java Programmers

Published in: May 2017Publisher: PacktISBN-13: 9781786462121

Authors (3)

Rajdeep Chandra

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