Ultrasonic Distance Measurement Using Microcontroller

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Supervisor:
Dr. Iváncsy Szabolcs
Department of Automation and Applied Informatics

In this thesis, the design and realization of an ultrasonic distance measuring device is discussed. The device is controlled by a microcontroller, which is responsible for the timing and evaluation of the measurements as well as the operation of all other peripherals. The measured distance and other information is displayed on an LCD display, and the user interface includes push buttons and LEDs. The measured values are stored in an EEPROM memory and are later accessible for reading. To compensate for errors caused by temperature change, the device is also equipped with a temperature sensor, as well as a radio module.

In addition to the main unit described above, a secondary unit is designed, also equipped with a radio module, in radio frequency contact with the main unit. This unit displays the measured distance values on a bigger, seven-segment display.

This thesis discusses the process of selecting the circuit elements, designing the circuit and the printed circuit board, programming and testing the device, and evaluating the results.

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