My Scratch board just came in today and i'm so excited to use it! Does anyone have any tips, ideas, or projects about Scratch boards?
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We found it fun to have the computer play notes whose pitch (note number) depended on the loudness sensor on the scratch board. By moving the board around relative to the speaker on the computer, you could get very different effects.
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I now created a fun mix drum set, controlled by the slider senser value, Very addicting! I sure do love my Scratch board!
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You could use fruit and your ScratchBoard to generate different sounds based on the type of fruit :-) http://scratch.mit.edu/ext/youtube/?v=hqdAGhqJ0Cs
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andresmh wrote:
You could use fruit and your ScratchBoard to generate different sounds based on the type of fruit :-) http://scratch.mit.edu/ext/youtube/?v=hqdAGhqJ0Cs
I don't understand one thing - when I plug in my alligator clips into A, B, C, or D; The resistance for each one will either be 100 (when they're not touching) or 0 (when they are touching). Even with a piece of tinfoil, I will connect each alligator clip to each end, the resistance will be either 0 or 100 (whether or not it is touching the tinfoil). Is it supposed to do that . . . Or isn't it supposed to be able to tell the distance apart (like be 50 or 31)?
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The resistance of wire or tin foil is too low to tell from 0. When I have some time, I'll try measuring some resistors to find out approximately what range is appropriate.
You might want to try some moderate resistance material (like pencil lead) to experiment with.
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Ok, I just did an experiment with a moist paper towel, and connected the alligator clips to each end of the paper towel. When squeezed, the resistance gets lower, when not squeezed, the resistance gets higher. I now understand. Thank You!
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