Test to make sure a remote control is transmitting Infra Red (IR)

As IR is invisible to the naked eye, here’s a clever trick to check it’s working.

Things you will need :

  • Mobile phone with camera
  • Remote Control

Turn on the mobile phone camera.  Point the remote control at the camera and press any button on the remote control.  You should be able to see the IR being transmitted on the display of your mobile phone.  If you can’t, replace the batteries on the remote control and try again.