User manual

GPIO EXPANDER KEYPAD

AND LCD DEMO BOARD

USER’S GUIDE

Appendix A. Schematics and Board Layouts

A.1 INTRODUCTION

This appendix contains the schematic and PCB layout for the GPIO Expander Keypad

and LCD Demo Board. Diagrams included:

• Board Schematics - Pages 1 - 3.

• Board - Top Layer (with silk screen)

• Board - Bottom Layer