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• 16:54, 16 August 2025 Siraj talk created page Experiment 4: Interfacing IR or Ultrasonic Sensor for Distance Measurement (Created page with "== Experiment 4: Interfacing IR or Ultrasonic Sensor for Distance Measurement == === Objective === To measure distance using an ultrasonic sensor and display results on LCD or Serial Monitor. === Task === # Connect HC-SR04 sensor to Arduino. # Write code to calculate distance using time of flight. # Display output in cm on LCD or Serial Monitor. === Connections === {| class="wikitable" style="text-align:center;" ! Component !! Pin/Label !! Connects To (Arduino U...")