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starsandrobots's profile
Star Simpson
Star Simpson
Star Simpson
@starsandrobots

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Star Simpson

@starsandrobots

I like to build things. Glider pilot. Eyes bigger than bookshelf.

SF Bay
Joined January 2009

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    1. Avi Bryant‏ @avibryant 10 Jul 2016

      @starsandrobots electronics question: I have a 12v DC motor I want to control programmatically. Need to run it forwards and reverse. (cont)

      1 reply 0 retweets 0 likes
    2. Avi Bryant‏ @avibryant 10 Jul 2016
      Replying to @avibryant @starsandrobots

      I have a WeMo Maker which can programmatically supply the power but annoyingly can't reverse polarity.

      2 replies 0 retweets 0 likes
    3. Star Simpson‏ @starsandrobots 10 Jul 2016
      Replying to @avibryant

      hm ok. Can you accept powering the motor with half the current? (Half the torque?)

      2 replies 0 retweets 0 likes
    4. Star Simpson‏ @starsandrobots 10 Jul 2016
      Replying to @starsandrobots @avibryant

      the process of what you need to do is boost 12V to 24V and create a virtual ground at +12V, which the WeMo controls.

      2 replies 0 retweets 0 likes
      Star Simpson‏ @starsandrobots 10 Jul 2016
      Replying to @starsandrobots @avibryant

      then you have +12V and -12V to work with

      3:21 PM - 10 Jul 2016
      1 reply 0 retweets 0 likes
        1. Avi Bryant‏ @avibryant 10 Jul 2016
          Replying to @starsandrobots

          note that I also need to be able to supply 0V (stop the motor). Maybe use a different WeMo switch for that :)

          0 replies 0 retweets 0 likes
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