This is a Forrest Mim's III Original!Simple vibration and motion sensors can be made using a pendulum switch, mercury switch or one of many other methods. This kit uses no moving parts to detect vibration. Instead, a piezo speaker element is used as a sensitive vibration sensor.Parts List:IC, LTC...By: JamecoElectronics
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from Instructables: exploring - technology - robots http://ift.tt/1vZWqcg
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