Post 7 made on Tuesday May 9, 2017 at 13:14 |
Barf Long Time Member |
Joined: Posts: | August 2013 350 |
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For example,
1. Digital cameras, like a smartphone, can "see" it, 2. IR receivers like a learning remote (e.g. your Pronto) can detect it, 3. Ir signals can are blocked by non-transparent objects, like a hand. Radio signals go through.
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