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led-clock

  • Category : ELanguage
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  • Update : 2013-10-17
  • Size : 10kb
  • Downloaded :0次
  • Author :Smr***
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Introduction - If you have any usage issues, please Google them yourself
The LED clock consists of 60 LEDs which are placed circular around a common analog clock. The LEDs are used to display the seconds. Essential part of this circuit is the LED driver MAX7219 from Maxim. A datasheet is available on Maxim s homepage. The clock is controlled by the microcontroller AT89C2051 from Atmel. This microcontroller is clocked at a frequency of 12 MHz from which results a time base of 1 microsecond. Via software dividers one clock impulse per second is generated which is used for updating the LED display.
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leduhr.asm
leduhr.bin
leduhr.sch
readme.txt
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