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  • 标题:LETTER INDICATOR
  • 本地全文:下载
  • 作者:WIDIA LESTARI NINGSIH ; SUNNY ARIEF SUDIRO
  • 期刊名称:Faculty of Computer Science and Information Technology
  • 出版年度:2006
  • 卷号:0
  • 期号:0
  • 语种:English
  • 出版社:Faculty of Computer Science and Information Technology
  • 摘要:key words: letter indicatorABSTRACT :Pos Indicator is a tool that can indicate whether or not there is a letter in themailbox. This tool works as a sensor using LDR, IC 7400 and props sevensegments as output. This tool can also use the reset switch to restore its originalcondition. This indicator can be used appliance in the home, so we do not needto go back and forth check box and leave the other job.
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