Beacon (IR or Orherwise)
Forget making a LED blink. how do you even get it to turn on?
This is a walkthrough for making an LED turn on and off at will, in a small beacon for a robot's sensors to see
This is a small enclosure that works like a flashlight. It takes 5 minutes to build.
See Beacon Guts.JPG
The materials are all available at your local radioshack. You need a AAA battery holder, a small circuit board or breadboard, an led, a resistor, and a switch. The box is optional.
the circuit goes like this:
see Circuit.jpg and Circuit Close Up.jpg
the battery's black wire goes in anywhere. then the resistor is attached to it. on the other end of the resistor is the short leg of the LED. the long leg goes to the switch's negative pole. the red wire from the battery pack attaches to the other one.
you now have a small LED flashlight or beacon for your robot.