If i want to use this PIR with 3.3v system what should I do?
This sensor can't be powered by 3.3v.Maybe you can provide a external power to it.
Great! Very easy to use! Even for me ;-) Just connect to 5V an Ground and an analog or digital input.
Perfect! Just hook up to 5v and Ground, and the center pin to a analog input. Voila!
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