An Internet-Of-Things course for everyone - accessible yet serious, to take you from absolute beginner to a solid intermediate level - built around Home Automation using Raspberry Pi.
This is a course is for everyone. You need not be an electrical engineer, or an engineer at all. We explain all engineering or automation concepts from absolute scratch.
This is an Internet-of-Things course, not merely a Raspberry Pi course. This is important because we think too many courses end up becoming like manuals for the Raspberry Pi, or the Arduino, or some specific hardware device. This course is careful to generalize
The course takes you to a solid intermediate level. The objective is to get you to a point where if you imagine a really cool IoT application, you will be able to independently figure out how to implement it.
We focus on Home Automation using Raspberry Pi for our use-cases. This is so that you can immediately put it to use around the home (turn that music down without getting off the couch!)
As with all our courses, this one too is quirky. The examples are irreverent. Lots of little touches: repetition, zooming out so we remember the big picture, active learning with plenty of quizzes. There’s also a peppy soundtrack, and art - all shown by studies to improve cognition and recall.
Internet of Things : Sensors, Actuators, Microcontrollers, Arduino, Raspberry Pi, Physical Computing, Smart homes
Raspberry Pi 2 Model B Components, System on a Chip (SOC) , Input Output Interfaces, SD Card / Secondary Storage, Choice of Operating Systems, RISC/CISC Architectures, x86 vs ARM, Raspbian OS installation, Raspbian tour, Linux Shell commands overview, Installing softwares, Connecting to the Internet
Physical Computing: Sensors (Photoresistors, Ultrasonic sensors, motion sensors, temperature and humidity sensors), Relays, LEDs, Push buttons, Basics of circuit design, Ohm's law, RC circuit, GPIO pins, Serial and Parallel interfaces, UART, SPI, I2C, Pulse Width Modulation (PWM), Python (RPi DOT GPIO), WiringPi, Node js (RPi-GPIO)
Home Automation projects: Measuring Distance, Measuring Light Intensity, Controlling switches with sensors, Controlling switches over local and external networks
Mail us about anything - anything! - and we will always reply :-)
We - the course instructors - start with introductions. We are a team that has studied at Stanford, IIT Madras, IIM Ahmedabad and spent several years working in top tech companies, including Google and Flipkart.
Next, we talk about the target audience for this course: There is no bar. Even absolute beginners can take this course. It starts with the basics and builds up to solid intermediate level home automation projects with the Raspberry Pi.
At the end of this course, you should be able to confidently build an IoT project on your own.
Tech companies are buzzing with anticipation about the Internet of Things. What is it and why should you care? This class takes you through the possibilities that the Internet of Things can open up. It also explains in brief how it can be achieved.
We'll start with understanding the basic setup of a 'smart' home. The thing that makes it smart is a special type of computer. Microcontrollers are examples of special purpose computers that can be used for automating things.
The Raspberry Pi is tiny but still packs quite a punch. The Broadcom System on A Chip (SOC) is the secret sauce that makes this possible.
You can connect many things to a Raspberry Pi - Camera. HDMI, audio, GPIO - this class takes you on a tour of
the Raspberry Pi Board
The Raspberry Pi's SOC only has a small RAM. Where do you store your data, OS etc then? Use a Micro-SD card to store all your files and data.
The Raspberry Pi only runs specific kinds of operating systems - but there is still a lot of choice. Beef up on your OS fundamentals - RISC, CISC architectures, Open source vs closed source and make an informed choice of OS.
It's time to get started. We'll walk you through the steps involved in installing an Operating system.
Raspbian is the OS we've chosen to install. It's pretty similar to Debian - a linux distribution. Go on a tour of the OS.
Walk through a few useful linux shell commands including grep.
Adding a user and giving them permissions is not as straightforward as Windows. Redirection symbols come in real handy when you want to capture or parse the output at a command line.
Installing a software requires a few specific commands. These will be a lifesaver, whenever you use any Linux based OS in the future.
Connecting your Raspberry Pi to the internet can be a little tricky if you have never worked on a Linux based OS. We'll walk you through it step by step and there is a guide attached as well.
If you are absolutely new to coding, don't be intimidated in the least - its just like cooking.
A list is a list, as the name implies. Everything in life is a list, including strings
Let's do some stuff with lists.
Dictionaries, the name itself best describes what they are: collections of key-value pairs that you can look up blazingly fast. If-Else Statements come in real handy when you need to check for a condition.
Ever wondered what's the biggest difference between Excel, and a serious programming language? Loops. Loops are big productivity boosters.
Lists and Dictionaries are inextricably linked with loops. Use loops to do something with each element of a list or each key-value pair of a dictionary.
If coding is like cooking, functions are like food processors. They automate repetitive tasks by mechanically taking stuff in and churning stuff out.
Modules are awesome, you can do amazingly complex things by importing a module, without having to code stuff from scratch.
Walk through the various steps involved in a physical computing project. These are general enough that you can use this same process with any project , regardless of whether it is a Raspberry Pi that you're using as the main unit.
Devices communicate through interfaces, these are boundaries that connect them to other devices and define how the communication will be. Digital communication starts with binary and includes many possible interfaces -Serial, parallel, UART, Serial Peripheral Interface (SPI) and I2C. Pulse Width Modulation is a way to convert digital to analog.
This is the most critical step in physical computing - designing a circuit that connects your Raspberry Pi to other devices. We'll start from basics - what is the Ohm's law? What is resistance? Understand the specific roles that the different GPIO pins on the Raspberry Pi play.
To tie it all up, you'll need to write a program that controls the devices in your circuit. RPi.GPIO in Python or WiringPi in C are options but the basic steps are the same.
Here are few things you might want to add to your shopping list.
Our first physical computing project! Have some fun turning an LED on or off with your Raspberry Pi.
Errata: at 6:15. Connect the longer end of the LED to GPIO Pin 11
Read input from a Push Button, which is a tiny switch.
Take a reading from a photoresistor which is a light sensor. Use an RC circuit to measure the resistance of the photoresistor.
Use the Ultrasonic sensor to figure out if there is something is near the Raspberry Pi - and how far away it is.
We'll build upon the previous 2 projects. If a person walks into a room and the room is too dark - turn on the light switch. The project uses 3 circuits - Light sensor, Ultrasonic sensor, Relay to control a switch
Note: The code for this project is no longer available on github. Please use the attached zip file for the source code.
WiringPi is a library that was written for Arduino like programming on the Raspberry Pi. Pulse Width Modulation is a way to convert digital to analog - we'll explore both of these in this class .
Loonycorn is us, Janani Ravi, Vitthal Srinivasan, Swetha Kolalapudi and Navdeep Singh. Between the four of us, we have studied at Stanford, IIM Ahmedabad, the IITs and have spent years (decades, actually) working in tech, in the Bay Area, New York, Singapore and Bangalore.
Janani: 7 years at Google (New York, Singapore); Studied at Stanford; also worked at Flipkart and Microsoft
Vitthal: Also Google (Singapore) and studied at Stanford; Flipkart, Credit Suisse and INSEAD too
Swetha: Early Flipkart employee, IIM Ahmedabad and IIT Madras alum
Navdeep: longtime Flipkart employee too, and IIT Guwahati alum
We think we might have hit upon a neat way of teaching complicated tech courses in a funny, practical, engaging way, which is why we are so excited to be here on Udemy!
We hope you will try our offerings, and think you'll like them :-)