Author: Walrus

# Program for PiDoorCam

# Detects motion, and when it spots some, takes a high resolution
# picture, and sends the picture to PiScreen

import io
import os
import picamera
import ftplib
import time
from datetime import datetime
from PIL import Image
import requests

camera = picamera.PiCamera()
picamera.PiCamera.CAPTURE_TIMEOUT = 30

# If we detect 100 pixels that changed by 30, we have seen movement.
#difference = 30
#pixels = 100
# Desensitise!
#difference = 30
difference = 50
pixels = 150

# May as well use the maximum resolution of the camera.
# This is for V1. V2 is 3280 x 2464.
width = 2592
height = 1944

# I copied this voodoo motion detection from somewhere. Changed the timeout
#  setting above to prevent the occasional failures to complete captures.
def compare():
   camera.resolution = (100, 75)
   stream = io.BytesIO()
   format = ‘bmp’
   # Handle occasional ‘Timed out waiting for capture to end’
   try:
      camera.capture(stream, format)
   except:
      print (“Camera timed out, reboot needed!”)
      os.system(“sudo reboot now”)
       
   stream.seek(0)
   im = Image.open(stream)
   buffer = im.load()
   stream.close()
   return im, buffer

# Function to take a new high resolution picture, send it to PiScreen
# send it to my phone, and then delete it.
def newimage(width, height):
    when = datetime.now()
    filename = “door-%04d%02d%02d-%02d%02d%02d.jpg” % (when.year, when.month, when.day, when.hour, when.minute, when.second)
    camera.resolution = (width, height)
    camera.capture(filename)

    connected = True
    ftp = ftplib.FTP()
    ftp.connect(“PiScreen”)
   
    try:
        ftp.login(“pi”,”******************”)
    except ftplib.all_errors:
        connected = False
        print (“Failed to connect to server %s” % e)   
       
    if connected:
        ftp.storbinary(‘STOR ‘+filename, open(filename, “rb”))
        print (“Sent “, filename)

    ftp.quit()

# Code to send the Pushover message. Make picture smaller first.
    im = Image.open(filename)
    im.resize((324,243),Image.ANTIALIAS)
    im.save(filename)
   
    r = requests.post(“https://api.pushover.net/1/messages.json”, data = {
        “token”: “***********************************”,
        “user”: “*************************************”,
        “device”: “***********”,
        “sound”: “intermission”,
        “message”: filename
    },
    files = {
        “attachment”: (filename, open(filename, “rb”), “image/jpeg”)
    })
# Check r for problems – maybe put a delay here?
    if r.status_code != 200:
        print(“Pushover message failed.”)
    else:
        print(“Pushover accepted the message.”)
       
# Now delete the file.
    os.remove(filename)
    # Delay to avoid being nasty to Pushover server.
    time.sleep(5)

# Main program.

camera.rotation = 180
print(“Running door.py”)
image1, buffer1 = compare()

newimage(width, height)

while (True):

   image2, buffer2 = compare()

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

   if changedpixels > pixels:
      newimage(width, height)

   image1 = image2
   buffer1 = buffer2

Code below is an older version, the “error handling” doesn’t actually work.

# Program for PiDoorCam

# Detects motion, and when it spots some, takes a high resolution
# picture, and sends the picture to PiScreen

import io
import os
import picamera
import ftplib
import time
from datetime import datetime
from PIL import Image
import requests

camera = picamera.PiCamera()
picamera.PiCamera.CAPTURE_TIMEOUT = 30

# If we detect 100 pixels that changed by 30, we have seen movement.
#difference = 30
#pixels = 100
# Desensitise!
difference = 30
pixels = 150

# May as well use the maximum resolution of the camera.
# This is for V1. V2 is 3280 x 2464.
width = 2592
height = 1944

# I copied this voodoo motion detection from somewhere. Changed the timeout
#  setting above to prevent the occasional failures to complete captures.
def compare():
   camera.resolution = (100, 75)
   stream = io.BytesIO()
   format = ‘bmp’
   # Handle occasional ‘Timed out waiting for capture to end’
   try:
      camera.capture(stream, format)
   except:
      print (“Retrying camera.capture()”)
      camera.capture(stream, format)
 
   stream.seek(0)
   im = Image.open(stream)
   buffer = im.load()
   stream.close()
   return im, buffer

# Function to take a new high resolution picture, send it to PiScreen
# send it to my phone, and then delete it.
def newimage(width, height):
    when = datetime.now()
    filename = “door-%04d%02d%02d-%02d%02d%02d.jpg” % (when.year, when.month, when.day, when.hour, when.minute, when.second)
    camera.resolution = (width, height)
    camera.capture(filename)

    connected = True
    ftp = ftplib.FTP()
    ftp.connect(“PiScreen”)
 
    try:
        ftp.login(“pi”,”**********************************”)
    except ftplib.all_errors:
        connected = False
        print (“Failed to connect to server %s” % e) 
     
    if connected:
        ftp.storbinary(‘STOR ‘+filename, open(filename, “rb”))
        print (“Sent “, filename)

    ftp.quit()

# Code to send the Pushover message. Make picture smaller first.
    im = Image.open(filename)
#    im.resize((648,486),Image.ANTIALIAS)
    im.resize((324,243),Image.ANTIALIAS)
    im.save(filename)
 
    r = requests.post(“https://api.pushover.net/1/messages.json”, data = {
        “token”: “**********************************”,
        “user”: “********************************”,
        “device”: “************”,
        “sound”: “intermission”,
        “message”: filename
    },
    files = {
#        “attachment”: (“image.jpg”, open(filename, “rb”), “image/jpeg”)
        “attachment”: (filename, open(filename, “rb”), “image/jpeg”)
    })
# Check r for problems – maybe put a delay here?
    if r.status_code != 200:
        print(“Pushover message failed.”)
    else:
        print(“Pushover accepted the message.”)
       
# Now delete the file.
    os.remove(filename)
    # Delay to avoid being nasty to Pushover server.
    time.sleep(5)

# Main program.

camera.rotation = 180
print(“Running door.py”)
image1, buffer1 = compare()

newimage(width, height)

while (True):

   image2, buffer2 = compare()

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

   if changedpixels > pixels:
      newimage(width, height)

   image1 = image2
   buffer1 = buffer2