PIR is used to measure infrared (IR) light radiating from objects in its field of view. PIR sensors are commonly called simply "PIR", or sometimes "PID", for "passive infrared detector". The term passive refers to the fact that PIR devices do not radiate energy for detection purposes. They work entirely by detecting infrared radiation emitted by or reflected from objects.

This Unit communicates with the M5Core via the GROVE B.

Notice: This Unit has 2s delay time.

Product Features

  • Distance: 150cm
  • Delay time: 2s
  • Sensing range: < 100°
  • Quiescent current: < 60uA
  • Operating temperature: -20 - 80 °C
  • Program Platform: Arduino, UIFlow(Blockly, Python)
  • Two Lego installation holes

Kit includes

  • 1x PIR unit
  • 1x GROVE Cable


  • Human body Induction Lamp
  • Security Product
  • Automatic Induction Appliance Settings



1. Arduino IDE

The code below is incomplete. To get complete code, please click here.

#include <M5Stack.h>

// initialization
pinMode(36, INPUT);// set pir sensor pin as input

// read data
int value = digitalRead(36);// read the pin(0: not detectd 1: detected)

2. UIFlow

To get complete code, please click here.


More information




M5Core(GROVE B) GPIO36 GPIO26 5V GND PIR Unit Sensor Pin / 5V GND


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