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* 
100µF Electrolytic Capacitor 
2 × 100 ohm Resistor 
2 × 10K ohm Resistor 
Toggle Switch 
5 × 7-Segment ...
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