Motion Sensor Stopwatch Design Information (Schematic + Source Code)

 
Overview
Use the motion sensor stopwatch to measure the speed of an object. Hardware components: Arduino Mega 2560, solderless breadboard full size, Elegoo ultrasonic sensor, switch seals, button operators, alphanumeric LCD, servo modules. Software application and online service: Arduino IDE. When the button is pressed, the servos turn on and the stopwatch starts. Once the distance sensor sees the object within a certain range, the stopwatch ends and the LCD shows the time it took for the distance sensor to see the object after the button was pressed.
 
 
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Update:2025-06-19 18:26:39

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