Ultrasonic Range Meter Using PIC 16F873A Microcontroller

Mohd Hilmi, Zakaria (2008) Ultrasonic Range Meter Using PIC 16F873A Microcontroller. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The purpose of this project is about to design and build a device that using the ultrasound, which one of the ways of measuring distance. This about that can be measured by standing just at one place which means no need to measure for along the distance. This gives benefit in saving time and energy during measuring the distance. This device which the ultrasonic sensor is used and it is separates into the two kinds, the transmitter and the receiver. Both this sensor is used to transmit and receive the 40 kHz ultrasonic signal that used to measure the time. This Ultrasonic Range Meter detects a reflected wave from the object after sending out an ultrasonic pulse. The detection is done to detect the received ultrasonic signal. The microcontroller, PIC16F873 is use as interfacing to the output display. By measuring the time which returns after emitting a sound wave, a distance to the object is measured. This project gives the improvement on reading technique compare by measure the distance manually. Basically, this project is separate into three main parts. The first one is to finds and designing the hardware that required and related to the project, the second part is to construct and develop the hardware together with testing and troubleshooting. Then the third is designing and develop the software part and combine together with the entire of hardware component developed. In this project, the main electrical and electronic component is use including ultrasonic sensor module, PIC Microcontroller and also Liquid Crystal Display (LCD). This priority of this project is to improve the distance measuring technique to be more easier and saving time and give another benefits and soon the conception of this project could be apply to other applications such as distance detector for car reverse or parking sensor and also for robotic range finder.

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