PIR motion sensor

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  • PIR motion sensor (HC-SR501)
  • Works at 5-16V
  • Used in the MotionMote and MailboxAlert projects
  • Has 3 connections: GND, VCC, OUT
  • OUT can be connected to an interrupt pin on Moteino to wake it up from sleep and transmit a "MOTION" message, and/or to a LED to visually indicate motion
  • See this link for theory behind PIR sensors: http://www.glolab.com/pirparts/infrared.html 

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