In this letter, we proposed an ultrasonic sensor-based resolution tunable displacement measurement system by using an extension spring. In the proposed method, a linear extension spring is vertically ...

In this work we have designed the radar that uses an ultrasonic sensor and is controlled by an Arduino. Radar can detect and display the value of the distance to the item at a distance of 2 cm to 4 ...

This Arduino code utilizes an ultrasonic sensor to measure distances. When an object is detected within a fix distance , the connected motors trigger a sequence: move backward, turn right, turn left, ...