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7segment display multiplexing

Discussion in 'Electronic Basics' started by Jack// ani, Jan 17, 2006.

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  1. Jack// ani

    Jack// ani Guest

  2. Connect the base resistor of T2 to the collector of T1. Then one and only
    one of the digits will always be "activated." You will off course have to
    adapt the program code. Guess you'd best switch off all segments before
    changing digit.

    petrus bitbyter
  3. BrunoG

    BrunoG Guest

    Hi all,
    Hi, use a npn for T1 and a pnp for T2, both bases on the same control line ?
    only one display at a time will be powered

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