Introduction
It's easy to test an infrared (IR) remote control using a mobile phone's camera (most phone cameras are sensitive to IR). This helps when debugging a gadget problem.
Tools
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Place the remote control facing the camera lens Turn the camera on, and check that you can see the remote control's front face.
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Press buttons on the remote control.
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If you can see a light in the camera screen then the remote is functioning!
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Note: this doesn't test that the data sent by the remote is correct.
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