Most coffee and hot beverage makers heat our drinks to far beyond comfortable drinkability.  Learn to build your own Smart Coaster which uses a thermistor and a few basic components to tell you when your drink has cooled to a safe temperature.

Related circuitry projects:

1. How to: DIY Home Automation Tutorial
2. How to Use RFID to Protect your Beer, Valuables
3. Make a DIY Pong Clock

The warm ambient glow of the LED Cube’s fantastic display of illuminated animation and hours of programming. They’re actually easier to create than you may think. We’ll show you how in plain English using simple designs and multiplexing

Let’s start off small:

• A 3×3x3 LED Cube Design.
• Let’s step it up a notch with this fantastic 4×4x4 tutorial.

Bigger means Better:

• 8×8x8 is a bit more complicated, but is definitely worth the effort. You’re able to create far more intricate displays, patterns and animation.

Absoulte Insanity!

• Did I hear someone say 1000 LEDs? Yes, 10×10x10 is definitely possible, but incredibly difficult to keep track of each LED’s individual location. Check out the videos:

Need LEDs? The HacknMod store carries hundreds of LEDs from 5mm to 20mm in plenty of colors to suit your needs.