Create a visitor notification system using Raspberry Pi

Overview

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What to prepare

Environment

assembly

Connect the Raspberry Pi, optical sensor (GY-30), and camera as follows スクリーンショット 2020-09-15 9.39.49.png

programming

Main program

/home/pi/guest/guest.py


import smbus

import picamera

import time

import subprocess

bus = smbus.SMBus(1)

addr = 0x23

camera = picamera.PiCamera()

while True:

    luxRead = bus.read_i2c_block_data(addr,0x11)

    print("Lux: "+str(luxRead[1]* 10))

    if int(luxRead[1]* 10) > 200:

        camera.capture('/home/pi/guest/image.jpg')

        res = subprocess.call("sh /home/pi/guest/guest.sh",shell=True)

        time.sleep(300)

    time.sleep(1)

Shell script for sending emails

/home/pi/guest/guest.sh


sudo date > /home/pi/guest/body.txt
sudo mutt -s "guest arrived!" [email protected] -a /home/pi/guest/image
.jpg < /home/pi/guest/body.txt

Auto start settings

/etc/rc.local


#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
  printf "My IP address is %s\n" "$_IP"
fi

sudo python3 /home/pi/guest/guest.py &

exit 0

important point

Try using

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