INTERNET OF THINGS DEFINITION APPLICATION CASE STUDY

INTERNET OF THINGS
(IOT) USING NODE MCU
AND THINGSPEAK
MR.R.IMMANUAL
CTO,PEZRAY TECHNOLOGIES.
AP/MECH, SRI RAMAKRISHNA INSTITUTE OF TECHNOLOGY
11-02-2024 PEZRAY TECHNOLOGIES 1

Today menu
Programming basics

Programming….
The process of writing computer programs.(Wiki..)
The way to speak with computer with the help of its understandable language….(R.Immanual)

Understandable Language
Computer Knows Only Limited Vocabulary…..
Alphabets of computer language…..

A bit (short for binary digit) is the smallest unit of data in
a computer. A bit has a single binary value, either 0 or 1.
Although computers usually provide instructions that can test and
manipulate bits, they generally are designed to store data and
execute instructions in bit multiples called bytes.
Abbreviation for binary term, a unit of storage capable of holding a
single character. On almost all modern computers, a byte is equal to
8 bits. Large amounts of memory are indicated in terms of kilobytes
(1,024bytes), megabytes (1,048,576 bytes), and gigabytes
(1,073,741,824 bytes).

NUMBERS
1
2
3
4
5
6
7
8
9
10
BINARY
00000001
00000010
00000011
00000100
00000101
00000110
00000111
00001000
00001001
00001010
Using Transistor….

To Represent the Words…..
Using ASCI Table.

Mapping using standards like ASCII
A compiler is a program that translates the source code for another program from a
programing language into executable code. The source code is typically in a high-
level programming language (e. g. Pascal, C, C++, Java, Perl, C#, etc.).

Uses of speaking with computer
To solve a problem…

Problem Solving….
INPUT
ALGORITHMS
OUTPUT
Step by Step Instruction to solving a Problem….

MAKE A HORLICKS……
Hello Programmers help me to solve this
problem…

Write the pseudocode for the above
problem….

Find a word from dictionary
Time
to
solve
Size of a Problem
1
2

How my home connected with
Internet?
Cable Modem
DSL Modem
FIOS DEVICE

IP
(0-255)

WHO WILL PROVIDE IP ?
DYNAMIC HOST CONFIGURATION PROTOCOL

Is this number or word???
Which one is easy to remember?

PACKETS
DEMO

TCP (Transmission Control Protocol)

PORTS
WEBSITE OR EMAIL OR VIDEO ??

PROTOCOLS
SET OF RULES
WHAT TO DO WHEN A PERSON COME NEAR TO YOU?
WHAT TO DO A REQUEST COME FROM A DEVICE……

UDP (User Datagram Protocol)
Does not guarantee the delivery
USED IN VIDEO CONFERENCING

Router
Like our telephone operator
Connect the wires for particular IP

Traceroute
Tracert www.srit.org
Tracert www.Berkeley.edu
Routers between
Me and google

98% of international internet traffic flows undersea 426 active submarine cables span more
than 807,000 miles, transmitting data at 180,000 miles per second. Amazing?
Credit: Tyler Morgan-Wall, GeoJSON, and TeleGeography

HTTP

Inside the envelope
Html
Css
Jss
Python
Frameworks
Php

Kevin Ashton Describes “the Internet
of Things”
Def:
the network connecting objects in the
physical world to the Internet.

things connected to the internet

Application of IOT

IOT in Agriculture

Output from Cloud – blynk

Click on Login and create new account

Click on template

Create New Template

Click on data streams

Click on virtual pin

Click on create then click on web
dashboard add widget as switch

Click on settings

Change datastream

Click on search and add new device

Click on from template

Finally click on create

Open arduino
Change the
BLYNK_AUTH_TOKEN
Change wifi name and
password

Also download the app (Blynk)

/Include the library files
#define BLYNK_PRINT Serial
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
//Define the relay pins
#define relay1 D0
#define relay2 D1
#define BLYNK_AUTH_TOKEN "PxMR-TonkYHpaDYrYcNPMprZi7SIY3Jz" //Enter your blynk auth token
char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "immangwu";//Enter your WIFI name
char pass[] = "immangwu";//Enter your WIFI password

//Get the button values
BLYNK_WRITE(V0) {
bool value1 = param.asInt();
// Check these values and turn the relay1 ON and OFF
if (value1 == 1) {
digitalWrite(relay1, LOW);
} else {
digitalWrite(relay1, HIGH);
}
}

//Get the button values
BLYNK_WRITE(V1) {
bool value2 = param.asInt();
// Check these values and turn the relay2 ON and OFF
if (value2 == 1) {
digitalWrite(relay2, LOW);
} else {
}
}

void setup() {
//Set the relay pins as output pins
pinMode(relay1, OUTPUT);
pinMode(relay2, OUTPUT);
// Turn OFF the relay
//Initialize the Blynk library
Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
}

void loop() {
//Run the Blynk library
Blynk.run();
}

Input to Cloud – Thingspeak

Verify your email id

Click on New
channel

Click on save channel

Arduino code
https://www.blogger.com/u/3/blog/post/edit/4995420737532310073/1203982209188893459

ID Battery level Speed Battery Temp
01 100 80 35
02 99 90 35
03 98 100 35
Hosted on Server Get Battery level, Speed, Battery Temp
Accept Battery level, Speed, Battery Temp
NodeMCU with sensors
Send Speed,
Temp,
Bat_level
WRITE API
READ API

STEP 01
LOGIN TO https://www.000webhost.com/
SIGNUP THERE
LOGIN

Once you create a website
Click on Manage website

Click on database manager

Create new database

Click on Manage and open PhPmyadmin

Create Database

OPEN PHP FILES
Create dbconfig.php

Create db_connect.php

Create insert.php (Write API)

Likewise create necessary apis and
upload
Click on file manager

Click on public html and create a folder
api then upload all apis

ARDUINO – NODE MCU CODE TO UPDATE
THE DATABASE WITH SENSOR VALUES
https://github.com/immangwu

MY SITE CODES
Using the JS we can retrieve the sensor values from the db
https://github.com/immangwu?tab=repositories
Use the above link to take the html, css and JS code for the site
Final website link: http://immangwu.000webhostapp.com/

+91 9677817992
immangwu@gmail.com

INTERNET OF THINGS DEFINITION APPLICATION CASE STUDY

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