Weekend Projects

Weekend Projects – Hot/Cold LEDs

Weekend Projects – Hot/Cold LEDs

Complete instructions for this episode of Weekend Projects can be found at http://makeprojects.com/Project/Hot-Cold-LED/2445/1

Combine an Arduino, an ultransonic distance sensor, and some common components to build a classic “hot/cold” project. Once assembled, we’ll walk through the software “sketch” loaded onto our Arduino, and experiment with three variations of the “hot/cold” theme, all the while using the same circuit.

Weekend Projects – MonoBox Powered Speaker

Weekend Projects – MonoBox Powered Speaker

Complete instructions for this episode of Weekend Projects can be found at
http://makeprojects.com/Project/MonoBox+Powered+Speaker/2396/1

Learn the basics of audio amplification with a portable powered speaker that you build yourself. With some light soldering and clear step-by-step instructions, you will first wire up a simple amplifier circuit using a popular IC. Then, outfit an enclosure with the speaker you want, and design the enclosure to suit your style. Lastly, plug in your MP3 player or any 1/8″ line-in source and rock out!