Introduction

The Velleman VMA209 “Multi-function shield expansion board for Arduino” is an expansion board with the following features:

  • 4 digit 7 segment LED display module.
  • 4 surface mount LEDs in a parallel configuration.
  • 10kΩ adjustable precision potentiometer.
  • 3 independent push buttons.
  • Piezo buzzer.
  • DS18B20 and LM35 interface.
  • Infrared receiver interface.
  • Serial interface header.

In this project, we aim to augment the documentation and examples provided by the manufacturer.