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You are here: Home / Topics / how to interface about 272 leds to single 8051 chip ?

how to interface about 272 leds to single 8051 chip ?

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Microcontroller › 8051 › how to interface about 272 leds to single 8051 chip ?

  • This topic has 2 replies, 3 voices, and was last updated 7 years, 5 months ago by Anonymous.
Viewing 3 posts - 1 through 3 (of 3 total)
  • Author
    Posts
  • November 21, 2011 at 3:39 am #4752
    dharmik
    Participant

    hello, guys  i am thinking to make a digital clock using RTC in which each segment contains 66 leds and total 4 segments and extra 8 leds for dots ….. i wanna do this with at89c51 or ds89c410 but i dont know that how to interface these bulk of leds to single board and to glow them at a time ……. how to maintain current and voltage reqirements of all leds ??  since uptill now i had interfaced only 2 leds to 8051 ….so please help me tel me all alternatives to do that !! plzzzz suggest any resourses any idea ,,,,

    February 12, 2018 at 12:19 pm #14729
    GANEEV SINGH
    Participant

    Hi

    I do not have any circuit diagram for this but I can tell you that you must use combination of counter shift registers (serial in parallel out)

    February 13, 2018 at 7:33 am #14730
    Anonymous
    Guest

    THanks had the same problem

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