The BL sensor window is 5mm x 3.8mm. We also carry the BS412 PIR sensor which has a smaller sensing element. These are smaller and less expensive than our PIR modules, and you'll find the performance is OK but not as great as the larger modules, for example not having as wide of a range and taking longer to trigger.įor a PIR tutorial with CircuitPython and Arduino code examples and project ideas, check out our PIR sensor tutorial page !

The snap-on lens is focused to 5 meters away with a 120 degree spread, but should work from about 3 to 8 meters.

Connect pin #2 to ground (on time of 2 seconds).

To use, see datasheet page 7 pin-out diagram: Digital signal output is 3.3V high/low and you can change the length of time the signal pin stays high by connecting a resistor divider to the second pin, from 2 seconds (0V) up to one hour (3.3V) - see the datasheet 'on time' table for recommended resistor values. Search for jobs related to Pir sensor arduino datasheet or hire on the worlds largest freelancing marketplace with 20m+ jobs. Runs on 3.3V power - so make sure if you're interfacing with an Arduino or other 5V chip, you power it from the 3V regulator. It's also fully-contained - only needs power, ground and a resistor to set the delay time - and breadboard or perfboard friendly. This sensor is much smaller than most PIR modules, which makes it great for unobtrusive projects. Try to add a 1602LCD, relay module and other to show the data you measured.PIR sensors are used to detect motion from pets/humanoids from about 5 meters away (possibly works on zombies, not guaranteed). If no movement, D13 indicator on UNO board not lights, and 'No one!' is displayed on the serial monitor.

If(state = 1)Serial.println('Somebody is in this area!') Įlse if(state = 0)Serial.println('No one!') ĭone wiring and powered up, upload well the code, if the sensor detects someone moving nearby, D13 indicator on UNO board will light up, and 'Somebody is in this area!' is displayed on the serial monitor. Output Delay Time (High Level): About 2.3 to 3 SecondsĬonnect the S pin of module to Digital 3 of UNO board, connect the negative pin to GND port, positive pin to 5V port.īelow is an example code, you can upload it to Arduino IDE.It features higher reliability, lower power consumption and simpler peripheral circuit. This sensor integrates an integrated digital pyroelectric infrared sensor, and the connection pins. Now we launch this new pyroelectric infrared motion sensor, specially designed for Arduino. It can be applied to a variety of occasions to detect the movement of human body.Ĭonventional pyroelectric infrared sensors are much more bigger, with complex circuit and lower reliability. Its virtually often utilized to detect human movement within the sensors range. The Pyroelectric infrared motion sensor can detect infrared signals from a moving person or moving animal, and output switching signals. The HC-SR501 PIR Motion Sensor Detector Module allows you to detect motion.

Pir sensor datasheet