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Old November 14th, 2020, 05:56 PM
Ned Seagoon Ned Seagoon is offline
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A Bluetooth system is a possibility, it would require the student to have an app installed on their phone and have it turned on. Their are such applications available or you could have one of your computer science students develop one specific to your needs.
see https://en.wikipedia.org/wiki/Bluetooth
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