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Ever since his daughter was born, [Markus] has been keeping logs full of observations of human behavior. Despite how it sounds, this sort of occurrence isn't terribly odd; the field of developmental psychology is filled with research of this sort. It's what [Markus] is doing with this data that makes his project unique. He's attempting to use stochastic learning to model the behavior of his … [Read more...]
When [Steve] saw that we requested reader's solutions to storing hundreds of different components, he had to send in his solution to storing bunches of ICs, resistors, transistors, and other components. Like most of the suggestions we've seen, [Steve]'s solution relies on #10 envelopes stored in boxes specifically designed for holding envelopes. While there's nothing new about … [Read more...]
In our last Stellaris how-to we got the board working and set some registers to turn on the LED. This time we'll start using StellarisWare Driverlib, which provides drivers for the microcontroller's peripherals including GPIOs, UARTs, ADCs, and so on. These libraries make it easier to control the peripherals. We'll build the Driverlib project, create a project from scratch to use the library, and … [Read more...]
[Doped Boron] wrote in to tell us about this waterfall swing by [Dash 7]. Naturally, we had no idea what a "waterfall swing" was. Shown at the World Maker Faire in 2011, the device is a swing set capable of accommodating one or two people using it at a time. What makes it interesting, is that water comes out of the top support bar, forming a wall of water for the riders to pass through. This wall … [Read more...]
Copper bus bars are commonly used instead of wire for carrying high currents. [Dane] needed some bus bars for a project, but he was worried about corrosion. His solution was tin electroplating the bus bars to lower the risk of corrosion while keeping the conductivity high. The process requires only two chemicals: hydrochloric acid and tin. The electrolyte solution is made by dissolving tin … [Read more...]
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