I want to turn off/on an air pump around 10 minutes automatically -- Help needed !! Plz

Discussion in 'The Projects Forum' started by Rob smith1989, Jun 13, 2015.

  1. Rob smith1989

    Thread Starter New Member

    Jun 13, 2015
    1
    0
    i want to to create a external switch that will turn off a air pump for a bit of time around 10 minutes and then turn back on automatically. The time it is off would be better if it's adjustable. I've found something that work the opposite way around called a lag switch. Any help would be useful.

    Thanks rob
     
  2. AnalogKid

    Distinguished Member

    Aug 1, 2013
    4,545
    1,252
    Pump Voltage? Pump Current? Power available for controller? Indoors? Outdoors? Wet environment?

    ak
     
  3. KMoffett

    AAC Fanatic!

    Dec 19, 2007
    2,575
    230
    And what "off time" range?

    Ken
     
  4. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,804
    1,105
    Is pump turn-off a repetitive thing, or once only? If repetitive, how often?
     
  5. ScottWang

    Moderator

    Aug 23, 2012
    4,855
    767
    using a cmos 555 as TLC555 and bjt or mosfet to drive the relay and to control the air pump.
     
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