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Zelio programmable relay and stuff

Discussion in 'General Electronics Discussion' started by Viad, Feb 9, 2012.

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  1. Viad


    Feb 9, 2012
    Hello, I a hobbyist and have been programming a Zelio SR2 D201FU smart relay . I am going to use it to automate a sporting start sequence . The sequence ends as three flood lights switch off at 1 minute intervals. The race starts as the last light turns off. The unit will be housed in a cabinet within view of the time keepers. I can arrange for a start light to operate at the end of the sequence but this will not be friendly for the timekeepers who will need to start a stop watch at the end of sequence to time the race.
    I would like to employ say ten led indicators which would extinguish at one second intervals counting down to the start of the race along with a piezo sounder to bleeb the last ten seconds .
    I immagine I can't do this using the Zelio , but is there a circuit or product , that I could use to accomplish this, I can use the Zelio to trigger the start of the 10 second countdown.
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