© Warren Gay 2017

Warren Gay, Custom Raspberry Pi Interfaces, 10.1007/978-1-4842-2406-9_1

1. Introduction

Warren Gay

(1)St Catharines, Ontario, Canada

These are exciting times for hobby computing! In the 1980s you had to round up chips for the central processing unit (CPU), erasable programmable read-only memory (EPROM), and random access memory (RAM); find some peripherals; and then wire up the numerous address and data bus lines. After all that, you still had a pretty limited 8-bit system with no operating system. Today, you can acquire a 64-bit ARM quad-core system on a chip (SoC) with 1GB of memory and several built-in peripherals already assembled! Not only that, but the system will run a Unix operating system, whether it be Linux or some flavor ...

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