{"id":149,"date":"2020-08-13T09:04:00","date_gmt":"2020-08-13T09:04:00","guid":{"rendered":"http:\/\/doctor-dark.co.uk\/blog\/2020\/08\/13\/raspberry-pi-motion-detection-and-notification-program\/"},"modified":"2023-12-18T12:18:02","modified_gmt":"2023-12-18T12:18:02","slug":"raspberry-pi-motion-detection-and-notification-program","status":"publish","type":"post","link":"https:\/\/doctor-dark.co.uk\/blog\/raspberry-pi-motion-detection-and-notification-program\/","title":{"rendered":"Raspberry Pi motion detection and notification program"},"content":{"rendered":"

PiDoorCam updated<\/span><\/h2>\n
This is the amended, latest version of my Raspberry Pi program to watch the street outside, detect change, and send a picture to another computer for storage, and to my phone. I’m often in the back garden, and can’t hear the doorbell; missing deliveries is rather annoying!<\/span><\/div>\n

<\/span><\/div>\n
It no longer tries to take pictures when it’s dark, not just because I don’t have an infra-red camera and infra-red floodlights, but mainly because the street light outside flashes on and off all night, and I don’t want hundreds of pictures of that!<\/span><\/div>\n

<\/span><\/div>\n
You’ll need to set up a Pushover account, which is free provided you don’t send too many notifications, and a Ramdisk with a directory called \/var\/tmp on the Pi.<\/span><\/div>\n

<\/p>\n

Program listing<\/span><\/h2>\n

\n
# Program for PiDoorCam<\/span><\/div>\n

<\/span><\/div>\n
# Detects motion, and when it spots some, takes a high resolution<\/span><\/div>\n
# picture, and sends the picture to another computer, also<\/span><\/div>\n
# a notification via Pushover, to my phone.<\/span><\/div>\n

<\/span><\/div>\n
import io<\/span><\/div>\n
import os<\/span><\/div>\n
import picamera<\/span><\/div>\n
import ftplib<\/span><\/div>\n
import time<\/span><\/div>\n
import datetime<\/span><\/div>\n
from PIL import Image<\/span><\/div>\n
import requests<\/span><\/div>\n
import json<\/span><\/div>\n
import schedule<\/span><\/div>\n

<\/span><\/div>\n
camera = picamera.PiCamera()<\/span><\/div>\n
picamera.PiCamera.CAPTURE_TIMEOUT = 30<\/span><\/div>\n

<\/span><\/div>\n
# If we detect 100 pixels that changed by 30, we have seen movement.<\/span><\/div>\n
pixels = 100<\/span><\/div>\n
difference = 30<\/span><\/div>\n

<\/span><\/div>\n
# Use the maximum resolution of the camera.<\/span><\/div>\n
# This is for V1. V2 is 3280 x 2464.<\/span><\/div>\n
# It’s also correct for the ZeroCam.<\/span><\/div>\n
width = 2592<\/span><\/div>\n
height = 1944<\/span><\/div>\n

<\/span><\/div>\n
# Internet lookup of sunrise and sunset at our location<\/span><\/div>\n
def sunrise_sunset():<\/span><\/div>\n
    global sunrise, sunset<\/span><\/div>\n
    <\/span><\/div>\n
    # Location of greenhouse is lat = yyyyy lon = xxxxx<\/span><\/div>\n
    url = ‘https:\/\/api.sunrise-sunset.org\/json?lat=yyyyy&lng=xxxxx’<\/span><\/div>\n
    response = requests.get(url)<\/span><\/div>\n
    dict = response.json()<\/span><\/div>\n
    res = dict.get(‘results’)<\/span><\/div>\n

<\/span><\/div>\n
\n
    curtim = datetime.datetime.now()<\/span><\/div>\n
    hm = res.get(‘sunrise’).split(“:”)<\/span><\/div>\n
    sunrise = curtim.replace(hour=int(hm[0])-1, minute=int(hm[1]))<\/span><\/div>\n
    print(“An hour before sunrise “,sunrise)<\/span><\/div>\n
    <\/span><\/div>\n
    hm = res.get(‘sunset’).split(“:”)<\/span><\/div>\n
    sunset = curtim.replace(hour=int(hm[0])+13, minute=int(hm[1]))<\/span><\/div>\n
    print(“An hour after sunset   “,sunset)<\/span><\/div>\n<\/div>\n

<\/span><\/div>\n
# I copied this voodoo motion detection from somewhere. Changed the timeout<\/span><\/div>\n
#  setting above to prevent the occasional failures to complete captures.<\/span><\/div>\n
# Only alter this if you know what you are doing!<\/span><\/div>\n
def compare():<\/span><\/div>\n
   camera.resolution = (100, 75)<\/span><\/div>\n
   stream = io.BytesIO()<\/span><\/div>\n
   format = ‘bmp’<\/span><\/div>\n
   camera.capture(stream, format)<\/span><\/div>\n
   stream.seek(0)<\/span><\/div>\n
   im = Image.open(stream)<\/span><\/div>\n
   buffer = im.load()<\/span><\/div>\n
   stream.close()<\/span><\/div>\n
   return im, buffer<\/span><\/div>\n

<\/span><\/div>\n
# Function to take a new high resolution picture, send it to another computer,<\/span><\/div>\n
# send it to my phone, and then delete it.<\/span><\/div>\n
def newimage(width, height):<\/span><\/div>\n
    when = datetime.datetime.now()<\/span><\/div>\n
    filename = “door-%04d%02d%02d-%02d%02d%02d.jpg” <\/span><\/div>\n
               % (when.year, when.month, when.day, when.hour, when.minute, when.second)<\/span><\/div>\n
    camera.resolution = (width, height)<\/span><\/div>\n
    camera.capture(“\/var\/tmp\/”+filename)<\/span><\/div>\n

<\/span><\/div>\n
    connected = True<\/span><\/div>\n
    ftp = ftplib.FTP()<\/span><\/div>\n
    ftp.connect(“computer-name”)<\/span><\/div>\n
    <\/span><\/div>\n
    try:<\/span><\/div>\n
        ftp.login(“user-name”,”password”)<\/span><\/div>\n
    except ftplib.all_errors:<\/span><\/div>\n
        connected = False<\/span><\/div>\n
        print (“Failed to login to server.”)<\/span><\/div>\n
        ftp.quit()<\/span><\/div>\n
        <\/span><\/div>\n
    if connected:<\/span><\/div>\n
        ftp.storbinary(‘STOR ‘+filename, open(“\/var\/tmp\/”+filename, “rb”))<\/span><\/div>\n
        print (“Sent to server “, filename)<\/span><\/div>\n

<\/span><\/div>\n
    ftp.quit()<\/span><\/div>\n

<\/span><\/div>\n
# Code to send the Pushover message. Make picture smaller first.<\/span><\/div>\n
# Note this uses a Ramdisk you must set up elsewhere.<\/span><\/div>\n
    im = Image.open(“\/var\/tmp\/”+filename)<\/span><\/div>\n
    im.resize((324,243),Image.ANTIALIAS)<\/span><\/div>\n
    im.save(“\/var\/tmp\/”+filename)<\/span><\/div>\n
    <\/span><\/div>\n
    r = requests.post(“https:\/\/api.pushover.net\/1\/messages.json”, data = {<\/span><\/div>\n
        “token”: “you-need-to-get-a-token-from-pushover”,<\/span><\/div>\n
        “user”: “you-need-to-get-a-user-name-from-pushover”,<\/span><\/div>\n
        “device”: “your-device”,<\/span><\/div>\n
        “sound”: “intermission”,<\/span><\/div>\n
        “message”: filename<\/span><\/div>\n
    },<\/span><\/div>\n
    files = {<\/span><\/div>\n
        “attachment”: (filename, open(“\/var\/tmp\/”+filename, “rb”), “image\/jpeg”)<\/span><\/div>\n
    })<\/span><\/div>\n
   # Check r for problems – maybe put a delay here?<\/span><\/div>\n
    if r.status_code != 200:<\/span><\/div>\n
        print(“Pushover message failed.”)<\/span><\/div>\n
    else:<\/span><\/div>\n
        print(“Pushover accepted the message.”)<\/span><\/div>\n
         <\/span><\/div>\n
# Now delete the file.<\/span><\/div>\n
    os.remove(“\/var\/tmp\/”+filename)<\/span><\/div>\n
    # Delay to avoid being nasty to Pushover server.<\/span><\/div>\n
    time.sleep(5)<\/span><\/div>\n

<\/span><\/div>\n
# Main program.<\/span><\/div>\n

<\/span><\/div>\n
camera.rotation = 0<\/span><\/div>\n
print(“Running door.py”)<\/span><\/div>\n
image1, buffer1 = compare()<\/span><\/div>\n

<\/span><\/div>\n
\n
# Find sunrise and sunset times at two in the morning, and once<\/span><\/div>\n
# at startup.<\/span><\/div>\n
schedule.every().day.at(“02:00”).do(sunrise_sunset)<\/span><\/div>\n
sunrise_sunset()<\/span><\/div>\n<\/div>\n
<\/div>\n
while (True):<\/span><\/div>\n
   # See if it’s time to get sunrise and sunset.<\/span><\/div>\n
   schedule.run_pending()<\/span><\/div>\n

<\/span><\/div>\n
   image2, buffer2 = compare()<\/span><\/div>\n

<\/span><\/div>\n
   changedpixels = 0<\/span><\/div>\n
   for x in range(0, 100):<\/span><\/div>\n
      for y in range(0, 75):<\/span><\/div>\n
         pixdiff = abs(buffer1[x,y][1] – buffer2[x,y][1])<\/span><\/div>\n
         if pixdiff > difference:<\/span><\/div>\n
            changedpixels += 1<\/span><\/div>\n

<\/span><\/div>\n
   # See if we think something moved.<\/span><\/div>\n
   if changedpixels > pixels:<\/span><\/div>\n
   # See if it’s light enough to take a picture.<\/span><\/div>\n
      now = datetime.datetime.now()<\/span><\/div>\n
      if now > sunrise and now < sunset:<\/span><\/div>\n
          newimage(width, height)<\/span><\/div>\n
      else:<\/span><\/div>\n
          print(“A bit dark at “,now)<\/span><\/div>\n

<\/span><\/div>\n
   image1 = image2<\/span><\/div>\n
   buffer1 = buffer2<\/span><\/div>\n
<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

PiDoorCam updated This is the amended, latest version of my Raspberry Pi program to watch the street outside, detect change, and send a picture to another computer for storage, and to my phone. I’m often in the back garden, and can’t hear the doorbell; missing deliveries is rather annoying! It no longer tries to take … Continue reading “Raspberry Pi motion detection and notification program”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-149","post","type-post","status-publish","format-standard","hentry","category-raspberry-pi"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/posts\/149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=149"}],"version-history":[{"count":1,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/posts\/149\/revisions"}],"predecessor-version":[{"id":421,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/posts\/149\/revisions\/421"}],"wp:attachment":[{"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/doctor-dark.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}