Ever wondered whether or not your remote is really working.
Well here is a way of testing.
In order to test a remote, all you need is a regular digital camera with a screen on the back.
Even a cell phone with a built in camera will work. And here's what you do!
First, turn on the digital camera.
Second, point the remote at the lens of the camera so that you can see the remote on the camera's
digital screen.
Now, press a button on the remote and look at the camera screen.
If the remote is working, you should be able to see a light blinking on the end of the remote.
If you see the light, the remote is working properly.
How does that work, you ask? Well, remote controls use infrared light to send the signal to your TV,
but human eyes cannot see the light. If you look at the end of your remote, you will see absolutely nothing.
On the other hand, digital cameras pick up a lot more light. So, when you point the remote at the camera
and press a button, the lens on the camera sees the infrared light and displays it on the camera screen.
Go and give it a try. It works!