Difference between revisions of "PIR Sensor"
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Revision as of 21:32, 29 August 2020
Contents
Description
A PIR Sensor can detect motion, it is also called motion sensor. It detect moveing people or animals. PIR stands for passive infrared.
It has 3 connectors:
- + connected to GND
- - connected to 3.3V
- Out - digital output is 1 if motion is detected
How to connect it electrically
How to control it in MicroPython
Reading the value and printing it to the console
1 #Example usage for ESP32
2 from machine import Pin
3 from time import sleep
4 # digital input on pin 26
5 pir = Pin(26, Pin.IN, Pin.PULL_UP) # enable internal pull-up resistor
6
7 while True:
8 pirVal = pir.value()
9 print(pirVal)
10 sleep(1)
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