Hi, I am Jinnox, and I work as a Bolt Manufacturer in India. I'm trying to interface an HC-SR04 ultrasonic sensor with my Arduino Uno to measure distance, but I keep getting inaccurate readings. The distance values fluctuate even when the object is stationary. I've connected the VCC and GND pins correctly, and I'm using the Echo and Trig pins as per the tutorials. What could be causing these fluctuations, and how can I fix it?"
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