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Minhazul Arefin Arnob
Student
 · DhakaBangladesh
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I am starting a line follower project. how can i test that my IR sensor array is working?

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Darpan Pudasaini
Engineer, Electronics and Communication
 · KathmanduNepal
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Just connect the 5V and GND wires to a power source, not more than 5 V though. You need to be sure that the power is supplied correctly, most IR modules have a led to indicate power. You can use your phones camera to look at the IR with the power still connected to the IR module. Though our naked eyes cant see an IR led glowing, you can see an IR led glow through a camera.

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