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PIR Sensor(EF05002)

Introduction​

PIR Sensor is a type of electronic building block based on AM412 pyroelectric digital smart sensor. It can be used in sensing and detection of human or animal motion, sensing distance is about 4-5 meters.

ELECFREAKS PlanetX PIR Sensor

Characteristic​

Designed in RJ11 connections, easy to plug.

Specification​

ItemParameter
SKUEF05002
ConnectionRJ11
Type of ConnectionDigital Output
Working Voltage3.3V
Size55.8 x 23.8 mm

Outlook​

Quick to Start​

Materials Required and Diagram​

Connect the PIR sensor to J1 port and the LED to J2 port in the Nezha expansion board as the picture shows.

MakeCode Programming​

Step 1​

Click "Advanced" in the MakeCode drawer to see more choices.

We need to add a package for programming, . Click "Extensions" in the bottom of the drawer and search with "PlanetX" in the dialogue box to download it.

Note: If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu.

Step 2​

Code as below:​

Link: https://makecode.microbit.org/_ea4TopJXiHRb

You may also download it directly below:

Result​

The LED lights on while the motion being detected by the PIR sensor or the LED lights off.

Python Programming​

Step 1​

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor

We need to add enum.py and pir.py for programming. Click "Load/Save" and then click "Show Files (1)" to see more choices, click "Add file" to add enum.py and pir.py from the unzipped package of PlanetX_MicroPython.

Step 2​

Reference​


from microbit import *
from enum import *
from pir import *

while True:
    pir = PIR(J1)
    pir_value = pir.PIR_is_decection()
    if(pir_value == True):
        display.show(Image.HAPPY)
    else:
        display.show(Image.SAD)

Result​

A smile face displays on the micro:bit while the motion being detected by the PIR sensor or the micro:bit displays a sad face.

Relevant File​

Technique File​