Let's Make Robots! | RobotShop

Is your IR on or off?

  • Actuators / output devices:
  • Sensors / input devices:

Looking at an IR-transmitter, but have no clue weather it is on or off?

Turn on your camera, video or still, as long as it is digital.


This blue spot does not show for the human eye - but digitize it, and you can see :)



Sometimes you just get a little black piece of plastic, have nu clue, and nothing happens.. Camera!!! Blue spot!!!


(You can also use it to test if your TV's remote needs new batteries, or something is wrong with the TV:) 

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
cell phone cameras work wonders for this too.  :)