51 Research and Design, Electronic Engineers website - Embedded Systems, MCU, DSP, EDA, Test and Measurement, Components, Communications, Power, Microelectronics, Semiconductors

Wednesday, October 22nd, 2008 at 08:24 | No comments

Categories: SCM

Tags: ARM7, checking attendance machine, DMA, fingerprint gathering, Radio frequency cards

Short Content: Abstract: Take the ARM7 chip as the core, has designed a section of fingerprint checking attendance machine. This product has both the fingerprint checking attendance and the swipe card checks attendance two basic functions.Key word: ARM7; DMA; Checking attendance machine; Fingerprint gathering; Radio frequency cards 　　Introduction 　　The biological recognition technology depends upon its distinction uniqueness and the reliability, underwent near ten year development, the application was already getting more and more widespread and mature, at present the fingerprint recognition technology ...

Sunday, September 21st, 2008 at 07:47 | No comments

Categories: SCM

Tags: AT88RF256, PIC, Radio frequency cards, reader-writer

Short Content: Abstract: The introduction uses Beijing prestige Limb to be popular the company AT-RFMOD06 series radio frequency base station module to unify the PIC16 monolithic integrated circuit development being suitable in 125 kHz the low frequency AT88RF256 radio frequency cards reader-writer. How with emphasis does the introduction base station module's hardware connection and complete through the base depot to radio frequency cards controls and so on read-write, and gives the corresponding application software.Key word: Radio frequency cards reader-writer; AT88RF256; PIC monolithic ...