Introduction: Monitor Your Room From Anywhere in the World
Hi all, I am here to explain steps to make your home secure and monitored in real time even when you are NOT at your home. This interactive device will notify when something is wrong at your house. This device can communicate room status anytime to your smart phone through cloud (Thingspeak).
Lets get started
Step 1: Materials Required
1. Arduino UNO
2. Arduino Ethernet shield
3. Ultrasonic distance sensor (You can use a PIR sensor, if you want to. I don't have one so used distance sensor)
4. DHT11, temperature and relative humidity sensor
5. Gas sensor (MQ-2)
6. OLED display (optional)
7. Servo motor (This is optional, I used this to mount the distance sensor and screen the room while rotating)
8. Jumper wires
Step 2: Circuit
Here are the details of the connection
Note : A- analog; D- digital
Ultra Sonic Sensor - Arduino 9 (Range upto 4m)
(Note you can use PIR sensor which has a range upto 10m)
Vcc - 5V supply (Parallel connection via Breadboard)
GND - GND
Trigger - D8
Echo - D9
MQ2 - Arduino
Vcc - 5V supply (Parallel connection via Breadboard)
GND - GND
AO - D4
DHT11 - Arduino (Temperature sensor)
Vcc - 5V supply (Parallel connection via Breadboard)
GND - GND
Signal - D2
OLED Display - Arduino
Vcc - 3.3V supply
GND - GND
SDA - A4
SCL - A5
Servo motor - Arduino (optional)
Vcc - 5V supply (Parallel connection via Breadboard)
GND - GND
Signal - D3
Step 3: Thingspeak Channel
Thingspeak is an open source cloud platform. You can send the sensor details to the cloud and get notifications to your smartphone or monitor your room via Thingspeak website.
Step 1:
Create an account in "www.thingspeak.com" website
Step 2:
Click "New channel" on your main home page
Provide the details of your channel like
1. Name
2. Description:
3. Fields: In our case, four fields are "temperature, Relative humidity, Gas Concentration, Intruder distance"
4. You can also give latitude and longitude of your room location
Step 3:
You can set this channel Public or Private as per your wish in " Channel settings" tab
Step 4:
Note down the "Write API" key number which is unique number to a channel created. Use this channel API number in your arduino sketch shown below
"const char * myWriteAPIKey = "xxxxxxxxxxxxxxx";
Step-5:
Here are the two steps you need to follow to view your room status on your smartphone
1. Download and install "ThingView" app from google play store. here's the link (https://play.google.com/store/apps/details…)
2. Type channel ID as "xxxxx"
attached are the pics you see in the app if everything works properly
You can also get notifications via twitter from "thingspeak" channel by setting the limits of the fields in "Apps" tabs. explore this section for more details....
Done..Compile and upload the sketch to your arduino and you are all set to stream your room data online....
Step 4: Sketch and Libraries
For this sketch to work, use the libraries attached.
Extract the files from rar file and copy them to arduino documents libraries folder.
Attachments
Step 5: Conclusion
Let me know if you have any queries while following this instructable
Thanks

Participated in the
Digital Life 101 Challenge

Participated in the
Hack Your Day Contest
45 Comments
Question 3 years ago on Introduction
The OLED is not working?
Please help sir.
6 years ago
Nice stuff... but i thought it was security camera stuff. I use my Security cameras and a hidden computer with teamviewer to watch my home from wherever i am, even in china. Everytime when i feel a little paranoia about my home, i take a look on my phone LOL.
Reply 6 years ago
Don't be paranoid about your home, we are all looking after it for you.
Reply 6 years ago
Not me. I have an overseas group of minions to watch his house for me.
Reply 4 years ago
Awesome ,are they available for hire,?
Reply 6 years ago
I think i have some under my shoe....
Reply 6 years ago
Ah well... there is only 200 million hidden on the attic...lol
Reply 6 years ago
yeah that was good. but i did this as a starting point for the next version. I didnt find a camera compatible to arduino and associated libraries so I tried something with Ultrasonic sound sensor. anyways thanks a lot for the idea.
6 years ago
i have succeed in compiling and uploading the coding..but the serial monitor shows nothing and thingspeak shows no result..please help me
Reply 6 years ago
Then there should be no problem with the syntax. Then do the following
1. Check all your connections if they are as per the instructable.
2. Check whether your sensors are working.
3. Finally all seems alright, start trouble shooting with one of the sensors say DHT11/ gas sensor / ultrasonic sensor and try to figure out the problem.
4. If you are sure all your sensors are working properly, then start looking at your serial connections like D0 and D1 issues.
6 years ago
why there are errors when compiling the coding in arduino software?
Reply 6 years ago
What are the errors? Can you post them? I can help you out if I figure them.
6 years ago
I also would like the schematics and circuit diag please
6 years ago
Bro do you have the schematic and the connection to the arduino and the sensors...
Reply 6 years ago
Okay, I will upload the schematic but will be available after 11th as I am out of station
6 years ago
can you show the schematic diagram for this project?
Reply 6 years ago
Any trouble in understanding the circuit section?
Reply 6 years ago
Yes I am unable to see the pin and the connections.
Reply 6 years ago
thank you so much..this is really helpful
6 years ago
I need the circuit connection