Results 1 to 4 of 4

Thread: What Sensor?

  1. #1
    jzimmer4 Guest

    What Sensor?

    I'm new at this, but I am trying to figure out a way to make a coaster (that you set drinks on) and when you set a drink on it, it lights up. So my question is, what sensor is a cheap way to make this work?

  2. #2
    Join Date
    May 2008
    Rep Power

    Re: What Sensor?

    Springs and switches. No microcontroller or sensor required.
    "If A is a success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut."

    Don't be a HelpVampire

  3. #3
    Join Date
    Dec 2008
    Rep Power

    Re: What Sensor?

    I think this might help. It is a flat momentary switch for a airsoft flash lights. It is a little expensive but it shows the general idea. Jes1510 was right to it wouldn't require a microcontroller!
    Dalton Caughell

  4. #4
    Join Date
    Apr 2008
    Sacramento, CA, USA Area
    Rep Power

    Re: What Sensor?

    Yup. Even simpler:

    Two pieces of balsa wood cut to shape. Raised foil on the bottom piece, flush foil on the underside of the top piece. Compression springs at the four "corners" - (obviously, if it's round there's no corners, but you get the idea)

    The foil becomes the two contacts of a switch. Run wire off, switch a battery and the appropriate resistor into circuit with an LED - boom. Done. Next project.

    It sounds more complicated than it is - you can whip this out in a few minutes.
    I Void Warranties�

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Question(s) Sensors , Hitec Robonova Distance Sensor and Ultrasonic sensor
    By BrandonG32 in forum Sensors
    Replies: 1
    Last Post: 08-18-2008, 11:07 AM
  2. Sharp IR Sensor GPD120
    By BrandonG32 in forum Sensors
    Replies: 0
    Last Post: 07-08-2008, 02:04 PM
  3. IR Sensor with Phidget 8/8/8
    By lunarnexus in forum Sensors
    Replies: 4
    Last Post: 03-11-2008, 02:07 PM
  4. Replies: 29
    Last Post: 03-06-2007, 10:48 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts