Project 3 - Building a Twitter Alarm

Parts List

  • An Arduino Uno/Leonardo/Mega 2560/Duemilanove, or compatible board
  • An Arduino Ethernet Shield, or compatible board
  • One LED
  • One 220Ω resistor
  • An ultrasonic range finder, such as the Ping))), SRF04, or SRF05
  • Some wire, and a breadboard or basic soldering equipment

Source Code


Start Building Today

book cover Start Reading Now

Connecting Arduino includes:

  • Over 200+ pages of content
  • 8 in-depth Ethernet Shield projects
  • Network and Protocol Fundamentals

Take your Arduino projects to the next level. This book shows you how.