Take picture when motion with Pi 3 and Agent 2.0 CayenneMQTTClient() and notify by email - how to trigger a script on Pi 3


#1

About This Project

Using Raspberry Pi 3 and Python3 with Cayenne Agent 2.0

Want to monitor my sailbout, with temp, humidity, water level inside and picture if motion detected.
If motion, I also want email or sms notification.
Later I will have notification if any of the other sensors go above treshold levels.

What’s Connected

During this inital testing only motion detector and camera is connected. I have WiFi in the boat.

Triggers & Alerts

On motion, picture is taken and email sent

Motion detecton on GPIO 18

During testing a ButtonS was made, and a Quit button to stop the python program.

Scheduling

No

Dashboard Screenshots



I used Custom Widgets -> Button
and
Custom Widgets -> 2 state

This is working with triggers and will send emails and sms

(Paste screenshots of dashboard, triggers & alerts, Scheduling)

Photos of the Project

(Take some pictures of your project functioning in the wild!)

Video

(Upload a YouTube video showcasing your project in action!)
Python3 code:

#!/usr/bin/env python

from picamera import PiCamera
from time import sleep
import RPi.GPIO as GPIO
import datetime

camera = PiCamera()
GPIO.setmode(GPIO.BCM)

GPIO.setup(18, GPIO.IN) #PIR
camera.rotation =180 # flip the pic

import cayenne.client
import time
x = 0
# Cayenne authentication info. This should be obtained from the Cayenne Dashboard.

#MQTT_USERNAME  = ""
#MQTT_PASSWORD  = ""
#MQTT_CLIENT_ID = ""


# The callback for when a message is received from Cayenne.
def on_message(message):
    global x
    print("message received: " + str(message))
    # If there is an error processing the message return an error string, otherwise return nothing.
    if (message.channel == 4) and (message.value == "1"):
        print("button is pressed")
        x = 1
    if (message.channel == 5) and (message.value == "1"):
        print("quit button is pressed")
        quit()

client = cayenne.client.CayenneMQTTClient()
client.on_message = on_message
client.begin(MQTT_USERNAME, MQTT_PASSWORD, MQTT_CLIENT_ID)
# For a secure connection use port 8883 when calling client.begin:
# client.begin(MQTT_USERNAME, MQTT_PASSWORD, MQTT_CLIENT_ID, port=8883)

i=0
timestamp = 0

motion = False
motioncounter = 0
while True:
    client.loop()
    if motion:
        motioncounter += 1
    if (not motion) or (motioncounter > 30):
        if motioncounter > 30:
            motioncounter = 0
        if GPIO.input(18):
            print("Motion Detected...")
            dt = datetime.datetime.now()
            fn = '{:/home/pi/mqtt/examples/pic/%Y%m%dT%H%M%S.jpg}'.format(dt)
            client.virtualWrite(2,1,"digital_sensor","d")
            camera.start_preview()
            #time.sleep(5) ####If you really do need a delay here make it less than 1 second
            camera.capture(fn)
            #camera.capture('/home/pi/Desktop/image.jpg')
            camera.stop_preview()
            motion = True
            motioncounter = 0
        else:
            if (time.time() > timestamp + 10):
                print("making two state zero")
                client.virtualWrite(2,0,"digital_sensor","d")
                timestamp = time.time()
                motion = False
    time.sleep(0.1)

Maps, camera, gps stream. When will the complete cayenne agent be ready?
Raspberry Pi Agent 2.0
#2

nice @svein.utne, cant wait to see a video of it in wild.