LED

LED Tank Top

LED Tank Top

Use conductive thread to make a wearable LED display.

Aquaponics – Online Temperature and Humidity

Aquaponics – Online Temperature and Humidity

The project uses the DHT22 sensor to monitor temperature and relative humidity in an aquaponics system. The data is uploaded to a bare-bones application on Google App Engine and visualized with Google Chart Tools.

Get Started with BeagleBone

Get Started with BeagleBone

Got a project too big for a microcontroller? This embedded Linux board offers powerful features in a small package.

LED Sound Meter

LED Sound Meter

In this guide you will learn to created an array of LEDs that visually represent the volume picked up by an electret microphone. You will learn how to wire 3 different circuits which are the LED array (which is really many individual circuits), the microphone, and a button which can be used to change the display mode […]