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Sensors3.4.2. UsageThis sensor allows to the <strong>Video</strong> <strong>Camera</strong> Sensor Board generate an interrupt in Waspmote when the presence sensor detects, forexample, a person or an animal.3.4.3. Measurement processThe PIR sensor (Passive Infra-Red) is a pyroelectric sensor mainly consisting of an infra-red receiver and a focusing lens that basesits operation on the monitoring of the variations in the levels of reception of detected infra-reds, reflecting this movement bysetting its output signal high.The 10μm spectrum corresponds to the radiation of heat from the majority of mammals as they emit temperatures around 36°C.The maximum detection direction goes perpendicular to the <strong>Video</strong> <strong>Camera</strong> Sensor Board.Figure 14: PIR maximun detection rangeFigure 15: Maximun range jumper configuration-12- v4.0
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