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    Automatic Blinds

    Hi, I am looking to build a devise that will open my vertical blinds in the morning and then close these in the evening when light fades, automatically using LDR. Therefore, I want to power a geared dc motor so that it alternates its controls to rotate clockwise and counter-clockwise. Also I...
  2. S

    Reverse polarity

    How do I make a motor to alternatively reverse its action everytime power is switched on  i.e. if clockwise on first switch, anticlockwise on second switch and so on. The motor (taken out of a chordless hammer drill) runs on a 12V dc.
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