Contents of this page

" It was a great learning experience throughout the journey. We faced many hurdles but we finally ended up making a Wonderful Project. "

" It was a great experience working on this project, and we would like to thank our professors for giving us this opportunity . "

More projects >>>

Please submit the proposals in printed form (i.e. as prints on A4 sheets). The teachers and TAs, Staff team shall finalize the project list based on submitted project proposals. Do not share your project proposal with others to ensure uniqueness. Please come up with at least 2 project proposals.

Things to take care of:

1. Project duration (4 to 5 weeks)

2. Availability of Items ( an idea you may get from our Inventory List)

3. Cost must be within ₹2000  (If it exceeds then you have to bear the extra)

4. As it is a group project you have it discuss with your teammates and finalize the idea.

5. Submit the proposals on 3rd week of your course work.

You may visit the following site to get an idea of the problems on which you can work on. 

a short term project

iot based weather monitoring system

This is a half day long project that you can accomplish in a lab class. In this project you will be monitoring few parameters related to weather such as temperature and humidity and the data will be shown on a webpage using Internet Of Things (IOT). 

Goal

• Collect data of temperature and humidity 

• Process the data

• Show on a dashboard 

Sub Goal

• Select the required items

• Select platform for IOT

• Learn

• Troubleshoot for issues

Required Items

• Node MCU esp8266

• DHT 11 humidity and temperature sensor

• Micro USB cable

• Jumper Wires (F-F)

• Laptop 

• Stable WiFi Connection (Don't use Institute WiFi for the circuitry) 

IOT Platform

• Arduino Clouds

Circuit Design

Lets begin

Chapter 1 

• Step 1: Connect the micro USB cable with the Node MCU esp8266.

• Step 2: Connect the other end of the Micro USB cable to the USB port of the laptop.

• Step 3: Open device manager of your laptop. (Windows >> search Device Manager >> Open Device Manager)

• Step 4: Try to find the option named as Ports (COM & LPT). Click the > and check whether the device got recognized or not and what is the COMX (X is going to be a number for your case for example COM3 for my case).  Sometimes you may see some similar ports and different PORTS are written by the side of it. In these cases install the driver manually.

Case I: Ports (COM & LPT) is not showing, in this case disconnect the USB from your laptop and connect it in other ports except the last one.

Case II: Ports (COM & LPT) is showing but the dropdown is showing nothing. Usually just after connecting the ESP 8266 the driver gets installed automatically but sometimes it doesn't. In such cases you have to check which driver is there in the esp8266 module as of now I have seen 2 types of drivers for esp8266, ch340 driver and CP210x USB to UART Bridge VCP Drivers  by Silicon Labs. Install the required driver. How to know which one to install? ch340 g is rectangular in size and cp2102 is square in size. you can easily read this on the board by naked eyes. After installing the drivers just reconnect the esp8266 and you will see it will appear in the Ports (COM & LPT).

Chapter 2

• Step 1: Create an account in Arduino Cloud, if you already have an account log in. After log in you will see a page looks like the following.

• Step 2: Click on GET STARTED located on the top right corner.

• Step 3: Now you will see a GET STARTED pop up. Click on Do It Later.

• Step 4: Now click on Create new >> Things >> Towards the top left corner click on Untitled and name the thing (e.g.- IOT WS Thing)

• Step 5: A new tab will appear. You will see cloud variables and ADD option. Click on ADD.

• Step 6: Name the variable Temperature and select the variable type as Temperature ( C or F), if this variable type is not coming then select all the filter options like Alexa compatible and all and then select. now click on Add Variable.

• Step 7: Do the same for Humidity and select variable type as Relative Humidity. 

• Step 8: We want the system it self send us a message on the dashboard as well. so add another variable as Message and the variable type as String. Click on Add Variable.

• Step 9: Now on the same page you will see an optioned named as Associated Device. Click on the Select button.

• Step 10: Another pop up will appear. Click on Set Up New Device >> Third Party Device >> ESP8266 >> Click on Select Model >> NodeMCU 1.0 (ESP-12E Module) >> Continue >> Name your device (e.g. Camelia) >> Next >> Download PDF (this contains device ID and secret key that you cannot change later so make sure to keep it saved, read the instructions carefully) >> Check the box ( I saved my Device ID and Secret Key ) >> Continue

P.S. - Make sure the device is connected through out this process.

• Step 11: Now on the same page you can see an option named as Network. Click on Configure.

• Step 12: Put your Network credentials. SSID is the network name like GUEST_SECURED and Password you know it. Here you need to put the secret key as well, the secret key is there in the downloaded PDF.

P.S.- Don't use Institute Network. Use your mobile hotspot as WiFi.

Chapter 3

• Step 1: Go to the home page of Arduino Cloud.

• Step 2: Click on Dashboard.

• Step 3: Here you can Preview and Edit your dashboard where all the data will get displayed.

• Step 4: Click on Add >> under Widget >> Select Gauge >> Name the widget (Temperature Gauge) >> Link to a variable >> Select Temperature

• Step 5: Click on Add >> under Widget >> Select Gauge >> Name the widget (Humidity Gauge) >> Link to a variable >> Select Humidity

• Step 6: Click on Add >> under Widget >> Select Chart >> Name the widget (Temperature Chart) >> Link to a variable >> Select Temperature

• Step 7: Click on Add >> under Widget >> Select Chart >> Name the widget (Humidity Chart) >> Link to a variable >> Select Humidity

• Step 8: Click on Add >> under Widget >> Select Messenger >> Name the widget (Messenger) >> Link to a variable >> Select Message

• Step 9: Go back to the home page

Chapter 4

• Step 1: Go to Things again

• Step 2: Go to Sketch

• Step 3: Click on Open full editor.  A pop might appear and will ask you to install the Arduino Agent. Click on Learn More. Click on Install the agent >> Click on Start >> Download the .exe file >> Install. Once done click on Go to Web Editor

• Step 4: Add your code to the source code. 

• Add the code before void setup(), just after the line of  #include "thingProperties.h"

#include "DHT.h"

#define DHTpin 2 // D4 on the nodemcu ESP8266

#define DHTTYPE DHT11

DHT dht(DHTpin,DHTTYPE);

• Now add this code in Void loop(), where you will see // your code here.

 float hm= dht.readHumidity();

    Serial.print("Humidity ");

    Serial.println(hm);

    float temp=dht.readTemperature();

      Serial.print("Temperature ");

    Serial.println(temp);

    humidity=hm;

    temperature=temp;

    message="Temperature = " + String (temperature)+"  Humidity = " + String(humidity);

Now your code will look something like this: https://github.com/SourabhMaity7/IOT-WS/blob/main/Source%20code

• Select the same board that you have selected earlier (i.e. NodeMCU ESP-12E Module) and the port ( for my case which was COM3)

• In the above photo you can see a cross sign, that means at this particular moment the system cannot upload the code to the microcontroller. What you have to do is install the driver (see Chapter 1, Case II). Then refresh the page and you will be able to select the port and select the device. Then upload.

•  Make sure you have installed the Arduino agent while opening full editor. If you haven't, go to sketch again and open full editor and install the Arduino Agent from the pop up.

• Verify and save the code by clicking on Tick mark and Upload the code by clicking on arrow.

• Once the you see Flush Completed. VOILA!!

Chapter 5

• Click on the Monitor i.e. serial monitor and wait for sometime to see the data is getting read by the system. It will get printed in the serial monitor.

• Now go to the Dashboard in another tab and take a look. If nothing is there might be a WiFi network issue. Check the network.

• At this particular moment the system can be placed remotely powered within the network zone and it will keep on sending the data.