PIR Motion Sensor

৳ 78.00

PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don’t wear out. For that reason they are commonly found in appliances and gadgets used in homes or businesses. They are often referred to as PIR, “Passive Infrared”, “Pyroelectric”, or “IR motion” sensors.

10 in stock

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Description

Some Basic Stats
These stats are for the PIR sensor in the Adafruit shop which is very much like the Parallax one . Nearly all PIRs will have slightly different specifications, although they all pretty much work the same. If there’s a datasheet, you’ll want to refer to it

Size: Rectangular
Price: $10.00 at the Adafruit shop
Output: Digital pulse high (3V) when triggered (motion detected) digital low when idle (no motion detected). Pulse lengths are determined by resistors and capacitors on the PCB and differ from sensor to sensor.
Sensitivity range: up to 20 feet (6 meters) 110° x 70° detection range
Power supply: 5V-12V input voltage for most modules (they have a 3.3V regulator), but 5V is ideal in case the regulator has different specs
BIS0001 Datasheet (the decoder chip used)
RE200B datasheet (most likely the PIR sensing element used)
NL11NH datasheet (equivalent lens used)
Parallax Datasheet on their version of the sensor

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