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Beginning Arduino by Michael McRoberts

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Project 40 – Ultrasonic Alarm

You will now build upon the circuit from the last project and turn it into an alarm system.

Parts Required

LV-MaxSonar EZ3* images

100µF Electrolytic Capacitor images

2 × 100 ohm Resistor images

2 × 10K ohm Resistor images

Toggle Switch images

5 × 7-Segment ...

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