1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Electronics Beginners question! hooking up a pot..

Discussion in 'Modding' started by Anima, 18 Apr 2009.

  1. Anima

    Anima What's a Dremel?

    Joined:
    27 Feb 2009
    Posts:
    27
    Likes Received:
    1
    Hi there

    Bare with me, but my knowledge in electronics is not very good. I am making a thermally controlled fan control, and i am using the "Bells and whistles" version depicted at the end of the page depicting here: http://www.cpemma.co.uk/thermal.html

    My question is very basic.. I'm using some variable resistors /potentiometers, and i am making the circuit in Eagle, as i have access to PCB-making equipment. However, connecting the pot is proving troublesome - what pin should be connected to what? - the picture at the HP shows an arrow facing towards the pot, but eagle shows a leg (the middle one) with a stocking/ the letter T at an angle.

    From what i've read, the middle pin should be the output pin - but it confuses me that the drawing on the HP depics the arrow facing towards - like its the input pin?!


    Can someone help demystify this?

    Thank you in advance
     
  2. dan-ere-07

    dan-ere-07 What's a Dremel?

    Joined:
    29 Mar 2007
    Posts:
    289
    Likes Received:
    6
    the middle pin is the arrow in the diagram, the other two can go any way.
    the arrow facing in is just to show you its the middle pin.
     
    mvagusta likes this.
  3. Anima

    Anima What's a Dremel?

    Joined:
    27 Feb 2009
    Posts:
    27
    Likes Received:
    1
    Ok, thank you for clarifying this!

    Better to be sure than wing it :p
     

Share This Page