MESSAI.iO

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A wireless data acquisition system based on MSP430F149 is developed to measure microbial fuel cells' voltage, converting analog input voltage into digital output code and transferring data through GSM or USB. The system features a 16-bit microcontroller, high-precision A/D converter, and real-time clock for timing measurement. The collected data can be accessed through a Windows application via USB interface.

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What they did

System
MFC

What worked

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Abstract

A wireless data acquisition system based on MSP430F149 is developed for the measurement of microbial fuel cells’ voltage. The main function of this system is to convert the analog input voltage into digital output code, process the digital code, and transfer the data through the GSM network or the USB interface. The core of the data acquisition device is a 16-bit general purpose Texas Instruments ultralow-power microcontroller MSP430F149. As the voltage of a microbial fuel cell is very low, the A/D converter circuit is specifically designed for high precision and high accuracy. A real-time clock is used to achieve timing measurement and the time interval can be set to meet demands. The data collected is transferred through the GSM network. Besides, a Windows environment application developed with Visual C++ can be used to access the data stored in the flash memory through USB interface.

Key findings

  • The system can accurately measure low voltage from microbial fuel cells
  • The use of a 16-bit microcontroller enables high-precision data conversion
  • The system allows for flexible data transfer through GSM or USB interfaces

Keywords

USBMicrocontrollerData acquisitionComputer hardwareInterface (matter)GSM

Identifiers

DOI
10.4028/www.scientific.net/amm.105-107.1961
Journal
Applied Mechanics and Materials
Year
2011