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This lesson shows how to connect and scan a 16-button keypad with a Raspberry Pi, then create a reusable Python class and library for collecting user input. It assumes familiarity with the keypad and GPIO basics covered in earlier lessons.
Syllabus
Introduction
Homework Assignment
Creating a Python Class
Key Labels
GPIO
Variables
Reading a String
Changing the Return Character
Creating a Python Library
Demo
Taught by
Paul McWhorter