Two input devices made with common items

Here’s two input devices you can easily build with materials you already have on hand.

To the left, [John] built a 3×3 keypad matrix from paper and tinfoil. The rows and columns are made up of strips of tin foil on the front and back layers of paper. The layers are separated by spongy double-stick tape. A ‘keypress’ results when the gap between the conductors is compressed with your finger.

In much the same way, [Dave Fletcher] built a touch potentiometer. He made two resistance plates by scribbling pencil lead on sheets of paper. When the two plates face each other, separated by the same type of foam tape as before, they can be pressed together to form a circuit with a variable resistance. This results in a crude version of the SparkFun softpot.

WRT54GL, meet Alice

When it comes to routers, there is one that is hacker’s favorite, the WRT54GL. But a slightly lesser known company, Pirelli with their “Alice Gate2 plus Wi-Fi”, seems to be a popular choice among our Italian friends.

[Esteban] has done everything from installing serial and parallel ports, to unlocking firmware while installing Debian. Our personal favorite is the creative wiring of an additional USB port, where he had to custom create a power circuit to run his webcam and external drive.

[Thanks Marco]

[Update: It would appear Roleo, Beghiaro, and Zibri did the actual grunt work at ilpuntotecnicoeadsl and Esteban simply wrote the guides. Thanks for your hard work and hacking skills guys!]

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