How to check your TV remote / AC Remote

How to check your TV remote / AC Remote




By using Android mobile / windows mobile we can able to test IR remote(TV/AC remote).
IR LED we cant see with direct eyes so whether this LED working or not we could not identified. suppose remote battery low also IR remote will not work. for that we can test the remote by using mobile camera. open camera in your mobile and in front of camera show to your remote IR led . now you press any key you can able to see the IR LED is glowing .

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