Internet of Things (IoT) with Arduino Programming & ESP8266

This lecture will enable you to

#Use Arduino IDE platform

#Use the basic functions and methods of Arduino programming Language

#Learn to blink a LED

In this lecture you will be introduced to ThingSpeak cloud platform and its various services and Apps.

After completion of lecture students will be able to

# Create Channel in ThingSpeak.com cloud platform

# Understand the importance of API_KEY

# Upload random numbers to ThingSpeak Channel in multiple fields using computer browser

This is part 1 of two lectures

After Completion of this lecture students will be able to:

# Upload data to ThingSpeak Channel from NODEMCU (ESP8266)

This is part 2 of two lectures

After Completion of this lecture students will be able to:

# Establish Serial Communication between NODEMCU and Computer

# Establish connection between NODEMCU and WiFi access point

# Concatenate Strings in Arduino programming language

# Perform HTTP GET method to upload data to cloud platform

# Download Channel data in CSV format

After completion of this lecture, you will be

# Able to link twitter account to ThingSpeak account

# Able to use ThingTweet App

# Able to use React App to trigger ThingTweet instance.

After Completion of this lecture, you will be able to:

# Understand the pin-out of LM35 temperature sensor

# Understand the temperature range and its temperature to voltage coefficient

# Understand analog to digital conversion

# Understand the process of conversion binary data back to analog parameter

# Connect LM35 and NODEMCU

# Write Arduino program to interface LM35 & NODEMCU and print temperature data to Serial Monitor

After completion of this lecture, you will be able to:

# Upload LM35 temperature sensor data to ThingSpeak Cloud Platform

After completion of this lecture, you will be able to:

# Add external library to Arduino IDE from library manager

# Add external Zip library to Arduino IDE

# Dynamically add WiFi access point to NODEMCU (ESP8266)

After completion of course, you will be able to:

# Understand HTTP in IoT environment

# Understand HTTP request Methods: GET, POST, PUT

After completion of this lecture, you will be able to:

# Perform HTTP POST request method using NODEMCU (ESP8266) to upload data to ThingSpeak Channel

# Add Header in a HTTP request

After completion of this lecture, you will be able to:

# Read data of specific field of channel

# Read data of all channel fields

After Completion of this lecture, you will be able to:

# Read field data using NODEMCU (ESP8266)

# Extract field data from payload received from channel

After Completion of this lecture, you will be able to:

# Upload data to channel

# Read field data

# Use field data to take decision inside NODEMCU, here one LED is controlled

You can control Relays, Motors in the same manner

After completion of this lecture you will be able to:

# Discuss TalkBack service from ThingSpeak cloud platform.

# Create Talkback service and to store commands. 

# Discuss terminology like, commands, command position, command ID

# Discuss following actions on TalkBack Queue : Add a command, Update a command, Get a command, Execute a command

In this lecture we will implement "Add a Command" operation on our TalkBack queue using HTTP Post method, Here we have used switches connected to ESP8266 and when a particular switch is closed a command is added to TalkBack respective to closed switch.

After completion of this lecture, you will be able to:

# Add a command to TalkBack queue using HTTP POST method.

# Interface switch with NODEMCU.

In this lecture we will implement "Update a Command" operation on our TalkBack queue using HTTP PUT method, Here we have used switches connected to ESP8266 and when a particular switch is closed a command is updated in TalkBack queue respective to closed switch.

After completion of this lecture, you will be able to:

# Update a command to TalkBack queue using HTTP PUT method.

In this lecture we will implement "Get (Read) a Command" operation on our TalkBack queue using HTTP GET method, Here we have used LEDs connected to ESP8266 and when a particular command is received from the TalkBack queue corresponding LED will turn on.

After completion of this lecture, you will be able to:

# Get (read) a command from TalkBack queue using HTTP GET method.

# Interface external LEDs to ESP8266

In this lecture we will implement "Execute Command" operation on our TalkBack queue using HTTP POST method, Here we have used LEDs connected to ESP8266 and when a particular command is executed from the TalkBack queue corresponding LED will turn on and that command is deleted from TalkBack.

After completion of this lecture, you will be able to:

# Execute a command from TalkBack queue using HTTP POST method.

In this lecture we will implement "Update Command" operation on our TalkBack queue using the HTTP PUT method, Here we have used LEDs connected to ESP8266 and when a particular command is issued from API tester App, LEDs connected to NODMCU will glow.

After the completion of this lecture, you will be able to:

# Control LEDs connected to NODMCU using API tester APP

In this lecture, we will develop an end to end IoT system, At one end, IoT transmitter device will upload data to ThingSpeak cloud platform, ThingSpeak cloud platform will monitor the data uploaded to channel using React app, ThingHTTP app, and TalkBack app. The receiver IoT device will receive commands from the cloud and function accordingly.

After the completion of this lecture, you will be able to:

# Develop end to end IoT Solution

# Using ThingHTTP App

In this lecture, we will learn to integrate ThingHTTP and IFTTT.

After completion of this lecture, you will be able to,

# Configure IFTTT to identify an event.

# Configure IFTTT to send a notification when an event has occurred.

# Configure ThingSpeak (Channel, React and ThingHTTP) to trigger an event when temperature rises above certain level

In this lecture, we will learn to use Google Assistant, IFTTT, and ThingSpeak to control LEDs. These LEDs can be replaced by relays to develop this project for home automation.

After the completion of this lecture, You will be able to:

#  Integrate Google assistant and IFTTT to send text and vocal commands.

# Integrate IFTTT (Webhooks) to send PUT request to ThingSpeak (TalkBack)

In this lecture, we will learn to use TimeControl app from ThingSpeak to turn on and off devices when a specific time is reached.

After the completion of this lecture, You will be able to:

# Configure TimeControl app from ThingSpeak

# Update command in TalkBack queue using TimeControl