Drawdio is a simple electronic sound synthesizer build onto a pencil! The Drawdio circuit plays a musical tone with a frequency that varies based on the resistance between two points. When you hold the Drawdio in your hand, your body becomes part of the resistive loop, and you can do all kinds of fun tricks, like draw yourself a piano and play a little tune.
Follow along as we wire up this simple two-switch circuit that turns vocals off for instant instrumental mp3s. On any song where the track is equally mixed to left and right channels of stereo audio, the Sing-a-long Song Devocalizer will cancel them out, allowing you to isolate the instruments without the interference of song. Make […]
Combine an Arduino with a USB host mode-compatible Android device, and control a strip of full-color RGB LEDs with your Android’s touchscreen. Explore Pulse Width Modulation to get maximum brightness from your LEDs and mix their values to correct for color balance.
Whether you worry about sneaky snoops sniffing packets on your network or you simply need to take a break from being online, turn the web off with this Internet Kill Switch. With this beginner-friendly Weekend Project you can keep all your devices plugged in and turned on, while the switch interrupts the flow of packets to your network when flipped into the OFF position.
If you like lights and music, you’ll have fun building this Easy LED Color Organ. You plug your music into it, and the circuit divides the sound into high, mid, and low frequencies and then flashes three different colors of LEDs according to those frequencies.
Turn rotational momentum into AC electricity, then convert the AC charges into a steady stream of 5V DC to charge your phone or other mobile device while bicycling! We call this project the Pedal Power Phone Charger. It’s the latest addition to our series of Weekend Projects powered by RadioShack.
Combine an Arduino, infrared LEDs, and the open-source TV-B-Gone library to build a universal sleep-timer remote for any TV. For those layovers in motels on long road trips or for those who frequently fall asleep in front of the television, rest assured that your TV will be OFF when you awake, thanks to the TV-Go-Sleep Universal TV Timer.
Complete instructions for this episode of Weekend Projects can be found at https://makezine.com/projects/tv-go-sleep-universal-timer/
