Generating high-quality sine waves with Arduino
Need to generate a high-quality sine wave using an Arduino? The folks over at Lab3 explain how it’s done with their Arduino DDS Sinewave Generator.
Arduino
Gelatin brain mold with arduino synapses
Several weeks ago, I had a spectacularly bad accident on my bike. There was a dog, a leash and a human. The leash acted kind of like a finish line ribbon, but without the breakaway segment they use in the marathons. I landed on my (helmeted) head. Hard. A few hours later I came to in the ER of the local hospital blabbering to my wife, asking the same questions over and over (and over). They ‘offered’ to let me stay there a while, so I spent the night.
For a long time, I have consistently worn a helmet on every bike ride. It always puzzles me to see adults and kids riding with out proper head protection. I also often see teens with skateboard helmets riding with the straps undone, as if having the protective gear perched on their head is enough to keep it there. Why not clip the straps? If I hadn’t had a helmet on and properly secured to my noggin, I’d still be on the hospital feeding program, if I even survived the crash.
As I was floating in the ER I got a vision: A brain with little toy objects suspended in it like ideas in a mind. Around the objects are blinking lights acting as synapses. As I recuperated in the days after my misadventure, the image continued to return for further refinement. One of the first things I did on return from the hospital was to order a gelatin mold in the shape of a brain.
Arduino in Unity3D
Unity3D hacker Pieter Floris writes in to say that he’s finally got his Arduino connected compass controlling a camera in Unity3D. The barrier of entry continues to be lowered by projects like this. Kudos, Pieter!
Morse code beacon using Arduino
Any hams out there that need a quick-and-dirty morse code beacon? Then you might be interested in Mark VandeWettering’s Arduino Based Morse Beacon.
Tetris meets Arduino
Like Tetris, but tired of playing it alone in the dark on your Game Boy? Well, now you can rejoice, for Luyza Pereira and Bettina Hiel have brought Tetris into the era of physical computing with their installation Tetris meets Arduino.
DIY sonar visualizer with Processing + Arduino
Lucky Larry made this neat looking radar visualizer for an ultrasonic scanner, using Arduino and a Processing sketch
An operating system on my Arduino? Say it ain’t so!
This looks like an interesting development: Youtube user ArduinoWill claims to have managed to shoehorn an operating system onto the tiny microcontroller system, called Pyxis OS.
