Lmpacent at 17:16, 26 June 2023

2023-06-26T17:16:45Z

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			{{#seo:\|keywords=raspberry pi, water sensor}}
	{{#seo:\|description=Create a water leak detector with Phidgets and a Raspberry Pi.}}		{{#seo:\|description=Create a water leak detector with Phidgets and a Raspberry Pi.}}
	==Introduction==		==Introduction==

Lmpacent at 17:01, 26 June 2023

2023-06-26T17:01:13Z

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	<center>{{#ev:youtube\|~~cxVyhdk1KBk~~\|\|\|\|\|rel=0}}</center>		<center>{{#ev:youtube\|U4sqfvTcpC8\|\|\|\|\|rel=0}}</center>

	==Parts==		==Parts==

Lmpacent at 16:54, 26 June 2023

2023-06-26T16:54:07Z

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	<br>		<br>
	If you haven't used a Raspberry Pi with Phidgets before, [[https://www.phidgets.com/docs/Raspberry_Pi_and_Python\|check out this article.]]		If you haven't used a Raspberry Pi with Phidgets before, [https://www.phidgets.com/docs/Raspberry_Pi_and_Python check out this article.]
	<br><br><br><br>		<br><br><br><br>
	<br><br>		<br><br>

Lmpacent at 16:53, 26 June 2023

2023-06-26T16:53:39Z

← Older revision		Revision as of 16:53, 26 June 2023
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	<br>		<br>
	If you haven't used a Raspberry Pi with Phidgets before, [[phidgets.com\|check out this article.]]		If you haven't used a Raspberry Pi with Phidgets before, [[https://www.phidgets.com/docs/Raspberry_Pi_and_Python\|check out this article.]]
	<br><br><br><br>		<br><br><br><br>
	<br><br>		<br><br>

Lmpacent: Created page with "Category: Project {{TOC limit|4}} {{#seo:|description=Create a water leak detector with Phidgets and a Raspberry Pi.}} ==Introduction== If you’ve ever worried about coming home to a flooded basement, this project is for you. We will be creating a water leak detection system that will send you an email if a water leak is detected. {{#ev:youtube|cxVyhdk1KBk|||||rel=0}} ==Parts== Image:Hum1100_1.jpg|400px|link=https://www.phidgets.com/docs/images..."

2023-06-26T16:53:06Z

Created page with "Category: Project {{TOC limit|4}} {{#seo:|description=Create a water leak detector with Phidgets and a Raspberry Pi.}} ==Introduction== If you’ve ever worried about coming home to a flooded basement, this project is for you. We will be creating a water leak detection system that will send you an email if a water leak is detected. <center>{{#ev:youtube|cxVyhdk1KBk|||||rel=0}}</center> ==Parts== Image:Hum1100_1.jpg|400px|link=https://www.phidgets.com/docs/images..."

New page

[[Category: Project]]
{{TOC limit|4}}
{{#seo:|description=Create a water leak detector with Phidgets and a Raspberry Pi.}}
==Introduction==
If you’ve ever worried about coming home to a flooded basement, this project is for you. We will be creating a water leak detection system that will send you an email if a water leak is detected.

<center>{{#ev:youtube|cxVyhdk1KBk|||||rel=0}}</center>

==Parts==
[[Image:Hum1100_1.jpg|400px|link=https://www.phidgets.com/docs/images/b/b5/Hum1100_1.jpg|thumb|<center>Phidget Soil Moisture Sensor: The key component of this project.</center>]]
This project utilizes the following hardware:
<ul>
<li>[https://www.phidgets.com/?prodid=1287 Soil Moisture Sensor - HUM1100_1]</li>
<li>[https://www.phidgets.com/?tier=3&catid=64&pcid=57&prodid=1202 VINT Hub Phidget - HUB0001_0]</li>
<li>Raspberry Pi</li>
</ul>
 
If you haven't used a Raspberry Pi with Phidgets before, [[phidgets.com|check out this article.]]
 
 

==Software==
A simple Python program will run on the Raspberry Pi. It will perform the following task:
* Create a Voltage Ratio object, and map it to the Phidget Soil Moisture Sensor.
* Monitor the reading from the sensor and send an email if water is detected.

The program will execute every 30 minutes through a cron job.

===Email Configuration===
We recommend creating a new Gmail account for this project. In order to send emails from an app, you will need to enable 2-step verification in your account settings:
[[Image:Water_authent.jpg|center|500px|link=https://www.phidgets.com/docs/images/7/7c/Water_authent.jpg]]
 
Next, generate an app password that you can paste into the code below:
[[Image:Water_authent2.jpg|center|500px|link=https://www.phidgets.com/docs/images/f/f7/Water_authent2.jpg]]

===Code===
<syntaxhighlight lang=python>
import smtplib
import ssl
from datetime import datetime
import time

from Phidget22.Phidget import *
from Phidget22.Devices.VoltageRatioInput import *
from Phidget22.Devices.Log import *
from Phidget22.LogLevel import *
from Phidget22.Net import *

#Email Init
SMTP_SERVER = "smtp.gmail.com" #Change this if you are not using GMAIL
SMTP_PORT = 465 #Change this if you are not using GMAIL

USERNAME = "YOUR EMAIL@gmail.com"
PASSWORD = "YOUR PASSWORD - FOR GMAIL, THIS IS YOUR APP PASSWORD"

TO = USERNAME #Set a recipient

#Other Config
SENSOR_VALUE_DANGEROUS = 0.3 #Determine this value through testing
MINS_30 = 1800

#Send an Email
def sendMessage(time,voltageRatio):
context = ssl.create_default_context()
with smtplib.SMTP_SSL(SMTP_SERVER,SMTP_PORT,context=context) as server:
server.login(USERNAME,PASSWORD)
message = """Subject: Water Leak Detected!

A water leak has been detected!

------------details------------
Time: {0}
Voltage Ratio: {1}
-------------------------------

This email will repeat every {2} minutes until the voltage ratio drops below the threshold of {3} V/V.

""".format(time,voltageRatio,int(MINS_30/60),SENSOR_VALUE_DANGEROUS)
server.sendmail(USERNAME,TO,message)

def main():
#Create
waterSensor = VoltageRatioInput()

#Open
waterSensor.openWaitForAttachment(2000)

#Get current time
now = datetime.now()

#If water level is dangerous, send an email
if waterSensor.getVoltageRatio() >= SENSOR_VALUE_DANGEROUS:
sendMessage(now.strftime("%m/%d/%Y, %H:%M:%S"),waterSensor.getVoltageRatio())

main()
</syntaxhighlight>

===Schedule with Cron===
After adding the Python file to your Raspberry Pi, create a cron job that runs every 30 minutes:
[[Image:Cron_water.jpg|center|600px|link=https://www.phidgets.com/docs/images/7/7d/Cron_water.jpg]]
 
==Result==
You should now have a system that will send out an email when water is detected!
[[Image:Water_result.jpg|center|600px|link=https://www.phidgets.com/docs/images/8/88/Water_result.jpg]]

Water Leak Detector - Revision history

Lmpacent at 17:16, 26 June 2023

Lmpacent at 17:01, 26 June 2023

Lmpacent at 16:54, 26 June 2023

Lmpacent at 16:53, 26 June 2023