Fresh hacks every day
This is a picture of the guts of a diy Segway project (translated). Everything fits into a tiny space under the platform upon which the rider stands. It's tight, but makes for a sleek look when the diamond plate is covering up all of the internals. An ATmega644 controls the vehicle. It does so by using a PID control scheme to monitor a gyroscope, driving the wheels to maintain the center of … [Read more...]
A pair of security researchers have recently unveiled an interesting new keylogging method (PDF Research Paper) that makes use of a very unlikely smartphone component, your gyroscope. Most smart phones now come equipped with gyroscopes, which can be accessed by any application at any time. [Hao Chen and Lian Cai] were able to use an Android phone’s orientation data to pin down what buttons … [Read more...]
[Petter] built himself a DIY Segway out of a couple of cheap electric scooters. We've seen a couple of very nice Segway builds in the past like the all analog Segway, or the creepy walking version, [Petter]'s Segway build seems like it would be a useful human transport device. The motors, chains, gears, and wheels are scavenged from a pair of electric scooters. Steering left and right is … [Read more...]
[Daniel] just made a motion controlled game controller to go with his infuriating game. Thankfully, [Daniel] posted the source for this game so first time players already know the level select codes. The controller is based on an Arduino Uno with what looks to be a Sparkfun 2-axis accelerometer providing the tilt sensing. A similarly sourced half-inch force sensitive resistor and temperature … [Read more...]
Although spring keeps trying to break through the winter doldrums you might be looking for just one more weekend activity before the outdoor season begins. Grab the kids and give this paper gyroscope a try. It's not an electronic sensor made of paper, but the modern equivalent of a spinning top. The frame remains stationary while the center assembly spins at high speed, keeping the whole thing … [Read more...]
This somewhat odd-looking apparatus is being used to measure earth's rotation. At the heart of the system is a PlayStation Move controller, used because of its dual-axis gyroscope which has the highest dynamic range compared to other available products like the Wii Motion Plus. It rests on a column perched atop a record player that was chosen because of its precision rotation rate. The two rings … [Read more...]
[Ben Kokes] threw together a hardware package to capture data from a football. In the center of a Nerf football he made room for an accelerometer, gyroscope, and an electronic compass. All three can capture 3-axis data and, along with the LEDs ringing the circumference, they've controlled by an XMEGA192 microcontroller. This makes us think back to a time when baseballs with a built-in speed … [Read more...]
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