Arduino Range Measurer and Digital Spirit Level

By on May 27, 2018
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“The device features an ultrasonic sensor for measuring the distance to the nearest object, an accelerometer for measuring the angle with respect to the ground, an LCD display for showing the results and a custom designed PCB on which all components are connected.”

Combining an ultrasonic sensor for range measurement and an accelerometer for measuring angles leads to a double advantage: it saves space, and allows the Arduino Nano onboard to use the two readings together to calculate a square area automatically. That is what the maker Dejan Nedelkovski of How To Mechatronics implemented in his project.

User interface consists of a power switch, along with a single button for program interaction and to choose between the different measurement routines. Results are displayed on an LCD screen, and the electronics are encased in clear acrylic for visibility.

All you need for this project is:

  • Ultrasonic Sensor HC-SR04
  • MPU6050 3 Axis Gyroscope Accelerometer
  • 16×2 Character LCD
  • Arduino Nano

Code, schematics and the full tutorial are available at

About Luca Ruggeri

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