Raspberry Pi 20×4 LCD i2c C++ Driver

Introduction

I have written a C++ driver for the common 20×4 LCD using i2c on the Raspberry Pi. These LCDs are based on HD47780. Most examples I found are using the pins directly and not through i2c. I2c uses a lot less pins than directly connecting the LCD. I originally wrote this in C and then decided to convert to C++, as I am re-learning C++!

Breadboard Layout

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