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软件类型:国外软件 软件分类:硬件基础 授权方式:免费软件 界面语言:英文软件 软件大小:4.58 MB 运行环境:Win2003,WinXP,Win2000,Win9X 软件等级:★★★☆☆ 发布时间:2012-05-22 下载次数:
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Everyday Practical Electronics VOL.31. No.7 JULY 2002电子书籍介绍
Everyday Practical Electronics VOL.31. No.7 JULY 2002

Inspired by a display originally seen in a hotel lobby, this design
graphically shows calendar, clock and global timezone data.
Based on a PIC16F877 microcontroller and a graphics l.c.d.,
the following functions are available:
 Simplified World map
 Current UK clock and calendar data
 Clock data for any other timezone, adjustable via switches
 Flashing marker for sun’s current highest position, i.e. true noon at
that longitude (angle in relation to 0°, GMT)
 Marker’s position vertically (latitude) varies with the weeks and
months throughout the year, spanning the Tropics of Capricorn and
Cancer
 Multi-paged text display of 150 major cities and their timezone
displacements in relation to GMT (e.g. New York –5 hours,
Sydney +11 hours)
 Additional city timezones can be readily added by readers who have
PIC Toolkit Mk2 or Mk3 (TK3 V1.2)
 Accuracy of clock time-keeping adjustable via switches
 Principal clock and calendar data stored in the PIC’s non-volatile EEPROM for recall in the event of power failure.
 Runs from a mains powered 9V battery adaptor, plus standby battery back-up.

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