Red River Cart Wheel Squeak Display
From Squirrel's Lair
A museum asked us to build the electronics for a display where the visitor would be able to listen to the awful noise the ungreased wheels of a Red River Cart would make as they turn.
To make it a bit more interesting, the noise would be triggered by turning a model wheel mounted to the physical display, as supplied by the museum. We set up a hall sensor circuit to detect the wheel turning, and an Arduino...
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needs photos and more, and need to find out if emails tell me how this was actually implemented.
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