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Canon EOS 6D hot shoe to 5v logic trigger

Discussion in 'General Electronics Discussion' started by CommanderLake, Jun 21, 2019.

  1. CommanderLake


    Oct 2, 2012
    Not sure where this thread should go so please move it if required.
    I'm trying to use the hot shoe of a Canon EOS 6D to trigger a 5v logic circuit for a Picaxe but the pulse from the camera is triangular with a width of about 130nS and a peak of about 950mV which is too small to amplify with anything I have.

    I have:
    OPA197 in a DIP socket
    A few BC547C and BC557C
    2x ZVN3310A

    How could I convert such a small pulse into something a Picaxe can use?
  2. CommanderLake


    Oct 2, 2012
    Sorry posted too early, I just found out the hot shoe is a switch that closes to trigger the flash.
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