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One Direction Motion Sensor

May 23, 2011 Rend 0

This is a one direction motion sensor circuit. This motion sensor circuit is used to detects an object passing in one direction, ignoring an object […]

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Sound-Controlled Relay

April 21, 2011 Rend 0

This is a relay circuit that detect the presence of sound to activate the relay. You can use this sound-controlled relay as voice operated switch, […]