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else: If the object is at a safe distance (greater than or equal to 60 cm).
Ÿ Serial.println("It is safe to move forward."): Prints a message to the serial monitor
indicating it is safe.
Ÿ digitalWrite(4, LOW): Turns OFF the Piezo buzzer.
delay(10): Pauses the program for 10 milliseconds to stabilise the sensor readings and improve
simulation performance.
After completing all the steps and connecting the components, your Ultrasonic Distance
Measurement System will measure the distance to an object and activate the Piezo buzzer if the
object is too close.
When distance is greater than 60 cm
When distance is less than 60 cm
ECOTECH Smart homes use motion sensors to control lighting, turning lights ON only when needed to
ENERGY reduce electricity usage.
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