Energy cost money, so it is good idea to keep track on usage of it. Following project is dedicated to monitoring of whole house energy consumption. It has plenty features that enable do various fun stuff like seeing real power usage, apparent power, power factor, RMS voltage/current, frequency and cumulative kWh.

The values can be viewed on four 7 segment LED panel or via web interface that allows graphing energy usage. Energy measurement and Ethernet interfacing is done by Arduino boards. So there is not much of board making than wiring and burning sketches. And once again, be careful when dealing with mains.

Want to learn interfacing graphical TFT LCDs to Arduino projects? Then check out this great tutorial. As you know TFT displays are common in cell phones. In this tutorial there is a 4D Systems 1.44″ TFT display used which is featured with graphical processor, microSD interface and can be controlled via serial interface.

By following this tutorial you will learn how to interface this LCD to Arduino board and send simple serial commands to start displaying things on it.

This is really an original design of bicycle computer which is made of sew-able electronics materials. The core of this is an Arduino LilyPad surrounded by few electronics parts like buttons and buzzer.

Electronics were sewed to specially shaped jeans sheet that looks great on bicycle. Cyclocomputer uses a wheel sensor to read revolutions and this way measures speed and distance. The interesting part of this that it reports trip meters in Morse code.

Some time ago Alexander has designed his LED clock that has way to much processing power for displaying time. So he managed to expand functionality and display some RSS feed data on it.

8x seven segment LED displays is enough to display various textual information fetched from RSS feeds. Currently clock is configured to show time, display RSS feeds or weather information. Display communicates to custom PC software via USB port and gets latest RSS information. If RSS header looks interesting, press a button on LED display and browser pops out with current page. There are even more cool stuff that clock can do.