Check your remote control batteries through a smartphone

If in doubt whether batteries of one of your remote controls are still active, all you have to do is check them through your smartphone.

Have you ever wondered about your TV remote control batteries when it does not change channels? or when it starts to have slow response times. Or for any other remote control that might not work well? You can easily verify the reliability of their batteries if you have a simple smartphone. Let's see how.

This is an unknown but very good trick, you can find out if the batteries of your remote control are one stage before they run out completely. And this trick is hidden inside your smartphone camera. So do the following:

1. Open it smartphone camera your phone and make sure it "shoots" from the front, ie from the one where you usually take selfie photos.

2. Position your faulty remote control facing the camera so that you can see the LED sending the commands on your mobile screen.
Here we want to inform you that this trick is only applicable to IR remotes and not to ultra remotes.sounds. Ultrasonic remote controls are now tending to disappear and logically in your home you only have infrared ones. They are distinguished by the small light (led) they have on the front, but because it emits infrared radiation, you cannot see if it "lights up" or not.

3. Press any button on your remote control by looking through the screen of your mobile phone at the LED of the remote control. Prefer a button that sends a command repeatedly and repeatedly, such as changing the channel, or adjusting the volume, etc. If your remote control is working properly, you should see a light coming from the led and flashing on the screen of your mobile phone. . If you do not see the light or the light is too dim, you may need to replace the batteries in your remote control.

4. Replace the batteries with new ones, and if the light still does not turn on, then the problem is with the remote control, so you may need to replace it.

This trick doesn't just work with a smartphone camera. It can also work well with any other digital camera. So if you have a laptop (laptop), try using the built-in webcam. The sensors of all digital cameras can capture infrared radiation, whether they are built into a smartphone, laptop, stand alone as a web cam, or as a simple digital camera.

Note : Please note that some smartphone camera apps have built-in technologies which may block the infrared light reading. So a second trick, which is also reliable, is to operate your remote control near a radio operating in the medium wave (MW band). Set the radio to no station and through the noise of the band every time you press a button on your remote you will hear a buzz. This is an indication that your remote control is working and therefore does not need new batteries. Just make sure you have the remote control very close to the radio antenna.