Activities/Turtle Art/Using Turtle Art Sensors: Difference between revisions
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Wrap 50 turns of insulated wire onto a nail and connect the two ends to a phono plug as shown (if it is a stereo plug, probably the red wire and the copper shield). Connect the phono plug to the microphone input. Graph the Sound or Volume block. | Wrap 50 turns of insulated wire onto a nail and connect the two ends to a phono plug as shown (if it is a stereo plug, probably the red wire and the copper shield). Connect the phono plug to the microphone input. Graph the Sound or Volume block. | ||
[[File:Copper wire on nail.jpg.JPG]] | [[File:Copper wire on nail.jpg.JPG]] [[File:Fridge magnet.jpg|150px]] | ||
* Wipe the sharp end rapidly over the back of the fridge magnet, try both directions. | * Wipe the sharp end rapidly over the back of the fridge magnet, try both directions. | ||