Port-a-cool microcontrolled by Teensy

Discussion in 'The Projects Forum' started by bluecar5556, Jun 9, 2012.

  1. bluecar5556

    Thread Starter New Member

    Jun 9, 2010
    6
    0
    Hi, I have a Port-a-cool evaporative cooling unit that instructs in the user manual to to run the water pump until the pads are evenly soaked before switching on the fan, allowing them time to absorb water. When shutting down the port-a-cool, the water pump must be disengaged while maintaining airflow from the fan until the pads have completely dried, preventing bacteria growth "all five pads cost $300!"

    5 momentary buttons with LED status:
    Off
    Low
    Medium
    High
    Pump - Toggle On/Off

    [​IMG]

    [​IMG]


    This is the mode of operation in mind:

    Fan L + Pump 0 = Low speed fan relay on
    Fan L + Pump 1 = Pump relay on, delay Fan L relay until 2 minutes then engage
    Fan M + Pump 0 = Low speed fan relay on
    Fan M + Pump 1 = Pump relay on, delay Fan M relay until 2 minutes then engage
    Fan H + Pump 0 = Low speed fan relay on
    Fan H + Pump 1 = Pump relay on, delay Fan H relay until 2 minutes then engage
    Fan L, M, H, Pump 0 = Delay Fan relay 15 minutes then disengage

    Can anyone help or point me in the right direction to programming a teensy?
     
    Last edited: Jun 9, 2012
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