Design And Implementation Of A USB-Based Data Acquisition System

Zuraidah , Mohd Pahmi (2008) Design And Implementation Of A USB-Based Data Acquisition System. Project Report. UTeM, Melaka,Malaysia. (Submitted)

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Abstract

Design and lmplementation of a USB (Universal Serial Bus)-Based Data Acquisition System' project requires device measure data at a fixed interval and then sends them to a personal computer (PC) for storage and display. The data acquire may come from an analog-to-digital converter connected to a variable voltage source. This project separated into two parts that are PC which control the software while PICI8F4550 microcontroller controls the hardware. The communialtion be~ hardware and software executed when the hardware receive analog input voltage from power supply and USB protocol used to transfer the data to display at the PC as digital display. Since USB connections supply power, only one cable is required to link the data acquisition device to the PC, which most likely has at least one USB port. In addition, the USB's high-speed data transfer (from the data acquisition device to the PC) allows for a real-time display of acquired data, besides eliminating the need for expensive memory in the acquisition device.

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