Describe: The system uses a single-chip AT89S52 for the control of the core, the realization of the electronic scale of the basic control functions. System hardware components, including the smallest system board, data acquisition, the three most interactive interface. The smallest parts of the system is mainly the expansion of the external data memory, data acquisition in part by the pressure sensors, signal pre-processing and A/D conversion parts. Part of man-machine interface for keyboard input, 12,864 dot-matrix liquid crystal display can show the Chinese intuitive and easy to use.

File list(time 2006040623)(Click to check if it's the file you need, and recomment it at the bottom):
  单片机电子秤设计.doc

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 To Search: AT89S52 AD7705 PROTU 

 [0809_ok.rar] - 51 MCU A/D conversion, using the serial output (WAVE compiler)
 [analog432.rar] - to C2051 microcontroller core, using TLC2543 12 serial A/D converters, Design of a serial data collection/transmission module provides the hardware sc
 [chengzhong3.rar] - devised based on the weighing system, Connection between ADC 0809 plus digital LED control Dynamic Display

 [single_chip_fre.rar] - SCM frequency detection of hardware and software design. The circuit and application software for single-chip microcomputer in real-time detection and
 [Siemens_SitransP.zip] - pressure transmitter communications programming source code
 [VxWorks_book.rar] - Wang Xue-long teacher s VxWorks embedded systems development and application of the People s Post and Telecommunication News Press
 [AT89S52DS1302.rar] - Singlechip T89S52 and DS1302 clock chip, which AT89S52 Single-chip crystal oscillator with 12M drive DS1302 clock chip used 32.768K crystal driver t