Making Toys

Updates from February, 2009 Toggle Comment Threads | Keyboard Shortcuts

• 

  Yury Gitman 1:08 pm on February 6, 2009 Permalink | Reply  

  Plug-In Time Piece, Prototype 1 

  Notes for Class:
  Resistor Calc.
  http://www.engplanet.com/content/resistorinfo.html

  LED Formula:
  http://www.bpesolutions.com/ledcalculator.html
  LED Calculator:
  One LED
  http://led.linear1.org/1led.wiz
  Series LED
  http://led.linear1.org/led.wiz

  Led Specs:
  
  http://www.LedShoppe.com

  Notes for Class:

  Current limiting series resistor formula:
  vIN – vLED / 30 milliamp = series current limiting resistor.

  ((5V – 3V) / 0.030) = 100 Ohm series resistor for
  a 5V supply.
  ((6V – 3V) / 0.030) = 100 Ohm series resistor for
  a 6V supply.
  ((9V – 3V) / 0.030) = 200 Ohm series resistor for
  a 9V supply.
  ((12V – 3V) / 0.030) = 300 Ohm series resistor for
  a 12V supply.
  

  Change the mA to 0.020 if using a 20mA LED
  

  Assignment
  Read
  1)  Chapter 1-4 in CODE

  2)  Cradle to Cradle Design, 20mins

  http://video.google.com/googleplayer.swf?docid=-6397457103509501840&hl=en&fs=true

  3)  http://www.tigoe.net/pcomp/code/understanding-electricity

  Make
  Enclose your time piece so it can be:
  Displayed by plugging into wall.
  Has room for adding 3 switches to the outside.
  Has a way to program it easily [possibly an opening].
  Shows the passage of time with light.

  On Blog Post:

  1 sketch on Blog. Place 1 Photo of board, 1 Photo of Project (enclosed), code, and optional Video.

  Rate this:
   

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• 

  Yury Gitman 1:07 pm on February 6, 2009 Permalink | Reply  

  The Zodiac Experiment 

  Please Beta Test:
  http://apps.facebook.com/thezodiacexperiment/

  The Zodiac Experiment is an experiment that tries to prove or dissprove the accuracy of Astroligical compatiablity charts with Facebook relationship data.
  

  Rate this: