With an Ethernet Shield, the Arduino can talk to other computers around it, and those around the world. http://arduino.cc/en/Guide/ArduinoEthernetShield http://www.hacktronics.com/Arduino/Arduino-Ethernet-Shield/flypage.tpl.html?pop=0 Become the Maker you were born to be. Try Arduino Academy for FREE!

Your Arduino has things to tell you. One of the easiest ways to let it communicate is to attach a character LCD. These LCD modules are a lot of fun, however they can be tricky to get working right. Many

For $25 (Free shipping) you can get a complete Arduino kit. Yep, it’s a bare board with all the parts, you assemble. Bring back memories of Heath Kit projects. Become the Maker you were born to be. Try Arduino Academy

Looking to detect motion with your Arduino? Great for security or robotics apps. There are some neat projects including temperature sensing, exhaust gas analyzers, and more at http://www.pdqweb.net/arduino-motion-detector/ Become the Maker you were born to be. Try Arduino Academy for

If you need a way to detect the speed of a rotating device, a tachometer is the way to do it. If you can’t add slots and a hall sensor, a simple contactless IR sensor and reflective tape may be

Back around 1980 or so, I bought a book on how to make a robot pet. It would let you know when it was hungry (low batteries), follow you around, and avoid obstacles (ultrasonics). Well, microcontrollers have come a long