IoT-Based Smart Home Automation System on Budget

1. Introduction: Hello and welcome this new course. Today, you will learn, enter think based smart home automation and how to create it on budget using ESP bar. This is actually from educational engineering team. They SP 8266 is wifi. You all great for Internet of Things and home automation projects. Home automation has achieved a lot of popularity in recent years as day-to-day life is getting simpler due to the rapid growth of technology, almost everything has become digitalized and automatic. The Internet of Things, or IoT, is a system that allows devices to be connected, controlled, and remotely monitored across the Internet. Now, in this course, we are here to help you learn the hardware and software requirements for this project and to get it up and running inside your house. You will get a quick introduction to enter two things. The basic concepts behind IoT and everything that you need to know about it. You'll learn how to weld home automation projects using low-cost ball and a well-known Arduino IDE. The learning curve will be minimum. You will learn how to create our page to control your home remotely via internet. You will also learn how to create mobile app to control your home remotely via Internet. And we will also teach you how to create our observer and hosted on your board. Now will also teach you what is ESP EDI 266, what you can do with this low cost module. And this module specifications will also show you different versions available from this port. We will talk about the pin out and what each of these pens is used for. We'll talk about the circuit connection, how to connect different components. On budget. We will talk about the ESP 12 Ebola. And we must d1 balls, which are the very famous versions of the ESP a12 66. And we will end up with ESP 826601, which is the version that we will use. And we will list the things that made us prefer this version. We'll talk about programming the ESP 8266 using Arduino IDE. So you'll program it using a software that you are already familiar with and a language that you are already familiar with. We'll talk about how to design your own relay module so that you can use it to control high loads. I'm sure that at the end of scores, you will gain a lot of knowledge and you'll be able to control any of your home devices on budget at less than $5. Thanks for watching this introduction. This is Ashraf from educational engineering team. What you will learn in this course. Now, let's talk about things that we will cover in this course. First, we will talk about hardware and software requirements, and we'll give you a quick introduction to the Internet of Things were then to learn how to build home automation projects using a low cost board, the well-known Arduino IDE. So the learning curve here won't be much. And I can do this project. Now. You will also learn how to create web page to control your home remotely via internet. You will also learn how to create a mobile app interface to control home remotely via Internet. We will also talk about creating a web server and host it on your own. But again, we're talking about a low-cost ball here. So it won't cost you a lot. This is why this will be in terms of things, home automation and budget or on budget. Now, we will also learn the ESP 8266 board. And what can you do with this low cost per joule? We'll talk about at specifications and different versions available. And we'll explain that pin out. After that, we will connect our circuit and we will discuss different versions of the ESP balls that can be used and why we are using the one that we are using and we prefer it over other modules. Then we will have our programming, the ESP 8266 using Arduino IDE in a step-by-step manner. You'll also learn how to design your own relay module in circuit schematic software and how to make the PCB. After that, we will cover how to use ESP 8266 control high loads using that really module. I'm sure that at the end of this course, you will enjoy the content that you are going to go buy this module and start automating your home using it. Thanks for watching this lesson. See you next. 2. 3 Hardware and Software Requirements: Hardware and software requirements. This last one, we're going to talk about the hardware and software requirements to get this project done. The first thing that you will need is an ESP 8266 WiFi transceiver. You will also need the relate module and we will explain how to design and create a PCB for your very own relay module. Even if you don't have knowledge at all in electronic circuits. And we will show you the other option, which is to buy this module at a very low cost. You will also need some basic electronic components depending on what you are going to do This module or with the circuit, if you want to control a simple ID, or if you want to control a high load devices. For programming grill use Arduino IDE, which is a very well-known platform for programming Arduino boards. And we will set it up to get you started on programming ESP boards. You will need some jumper wires for connection. And you will also need a bread board if you want to connect different elements. And again, the two charts today will help you control two devices and ASP both. Now, if you don't have module, you can create one on connected on your breadboard by buying a five volt relay. To transit stores to n four ends, you'll need a single diode, which is 14,007. You need 220 ohm resistor and 15 volt battery, or a PSU or power supply units. This is in case you don't have access to already module, you can use to single-channel modules or singularly with the supporting transistor circuitry. And we will show you this circuit as we go in this course. So mainly you will need that ESP is 266 earlier module, and you will need the Arduino IDE as the software requirement. That's it. If you don't have any of these, just keep watching the course and you will learn how to get them. And they will cost less than $5. This is why this whole thing is called internal thing, home automation on budget. That's watching this lesson. See you next. 3. 4 Introduction to Internet of Things: Hello and welcome to this new lesson in which we're going to introduce you to Internet of Things or IoT. It's a very common term and now people are using it everywhere. Then kinds of things is a system of interrelated computing devices, mechanical and digital machines, objects, animals, or people that are provided with unique identifiers. And the ability to transfer data over a network without requiring human to human or human to computer. Interaction. Seems complex here. Now, let's make it simpler. Let's take a simple, non-technical explanation of the Internet of Things. How are you watching this course right now? It might be on desktop or mobile, maybe a tablet, but whatever device you are using, it's most likely connected to the Internet. And Internet connection is a wonderful thing. It gives us all sorts of benefits that just weren't possible before. If you were to think of your cell phone before it was a smartphone, you could call and you could text. Sure. But now you can read any book, watch any movie, or listen to any song all in the palm of your hand. The point is that connecting things to the internet yields many amazing benefits. We have all seen these benefits with our smartphones, laptops, and tablets. But this is true for everything else too. And yes, we do mean everything there in terms of thing is actually a pretty simple concept. It means taking all the physical places and things in the world and connecting them to the Internet. Confusion arises not because the concept is so narrow and tightly defined, but rather because it's so broad and loosely defined, it can be hard to nail down that concept in your head or in your head. When there are so many examples and possibilities in IoT or Internet of things. To help clarify, it's important to understand the benefits of connecting things to the Internet. Why would we even want to connect everything to the Internet? Now, one thing that you need to know is that when something is connected to the internet, that means that it can send information or receive information. For both. This ability to send and receive information makes things smart. Let's use smartphones again as an example. Right now, you can listen to just about any song in the world. But it's not because your phone actually has every song in the world sold on it. It's because every song in the world is stored somewhere else. But your phone can send information asking for that song and then receive information which is screaming that song. Your phone. To be smart, I think doesn't need to have superstar image or a super computer inside of it. It just needs access to it. All a thing has to do is connect to super solid or a supercomputer. In that side of things, all the things that are being connected to the Internet can be put into three categories. The first one is thinks that collect information and then send it. The second category is things that receive information and then act on it. The third category is things that do. Both. All three of these have enormous benefits that compound on each other. Let's start with collecting and sending information. Sensors. Could be temperature sensors, motion sensors, air quality sensors, light sensors, you name it. These sensors, along with a connection, allows us to automatically collect information from the environment, which in turn allows, allows us to make more intelligent decisions. The second category is receiving and starting on information. We are all very familiar with machines getting information and then acting. Your printer receives a document and it prints it. Your car receives a signal from your car key and the doors open. The examples are endless without its simple as sending the command turn on or as complex as sending a 3D model to a 3D printer. We know that we can tell machines what to do from far away. So what the real power of the Internet of Things arises when things can do both of the above. Things that collect information and send it, but also receive information and act on it. Now the third category is doing both, which is the goal of an Internet of Things system. Let's quickly go back to the example that we mentioned are examples that we mentioned earlier. Since it can collect information about our soil moisture from a farming place to tell the farmer how much to water the crops. But you don't actually need the farmer. Instead, the irrigation system can automatically turn on as needed based on how much moisture is in the soil. You can take it a step further to if the irrigation system receives information about them, whether it's Internet connection. It can also know when it's going to rain and decide not to water the crops today because they'll be watered by the rain anyway. And it doesn't stop there. All the information about the soil moisture, how much the irrigation system is watering their crops, and how will the clubs actually grow can be collected and sent to super computers that can amazing algorithms that can make sense of all this inflammation. And that's just one kind of sensor. Add an other sensors like light, air quality, and temperature. And these algorithms, algorithms, sorry, can learn mark like much more with dozens, hundreds, thousands of farms, all connecting this information, this algorithm can create incredible insights into how to make crops grow the best, helping to feed the world. And agriculture is just one of many applications of Internet of Things. So the main goal that I need you, or the main thing that I need to understand here is Internet of Things is basically connecting things to the internet. This is why it's called Internet of Things. Now, connecting things to the internet will help things become smart by providing them with storage and with supercomputers connection, which makes taking decisions faster and which helps monitoring these systems. Now, in the next lesson, we'll talk about the ball that will make it easy for us to tell our home into an internet connected home or use Internet of Things concept on our home devices and appliances. I hope that I didn't pull you with these theoretical ones, but you need to know these in order to move forward with this course. Thanks for watching this lesson. See you next. 4. 5 Different Boards with Built in Wifi: Hello and welcome to this new lesson in which we are going to talk about the board that we will use in this internal thing, home automation. It's the ESP 8266. They SBA to 66 is a $4 up to $10 wifi module. And it allows you to control inputs. Outputs, as you would do with an Arduino. But it comes with built-in Wi-Fi. So it's great for home automation, internet of things applications. Now, what can you do with this low cost module? You can create your own web server. You can send HTTP requests. You can control outputs. You can read inputs and interrupts. You can even send emails and posts tweets to your Twitter account. If you want to create a web server or the ESP to 66, we highly recommend that you use this board as it will cost, you weigh much less than using a Raspberry Pi, for instance. Now, the main product specifications, ESP 8266 specifications compared to other Wi-Fi solutions on the market, makes the ESP 8266 a great option for most Internet of Things projects. It's easy to see why it's so popular. It only costs a few dollars and can be integrated in advanced projects. Now some of the main features is that different protocols it supports. It also has Wi-Fi Direct and soft access point. It has integrated TCP IP protocol stack, and it has built in low-power 32 bit CPU. It also has SDI, o to 0, SPI uart, which are basically communication protocols. There is also a successful of the ESP 8266, which is the ESP 32, which combines Wi-Fi and Bluetooth, and it has dual-core processor. You can see our profile. We have different courses that's covering the ESP 32, but it's nasty. It's not a low-cost module. That's why we didn't use it in this course. Now, let's take a quick look at different versions available from the ESP 8266. They must be eight to 66 comes in a wide variety of versions. As you can see in this image. There is the ESP wealth, ie, all often called E. We, that is highly recommended when you are building or developing a project and you need a belt. And programmers lost a lot of general purpose input output pins. There's also the built in program or features that will make it easy to prototype and upload your program. But this comes with a cost. It will be at a higher price range than the module that we will use in this course. Each of these modules has its own specifications. The differentiation and the power consumption, number of output modules, the need for external programmer or not, and the price, which is the main point here, we are looking for a solution that is low cost and can be used in any device to control that device and turn it on and off without the hassle of paying too much money to turn that device into a smart device. In the coming lessons, we will cover that the SBA to 66 that we will use in this course in details. Thanks for watching this lesson. See you next. 5. 6 Boards Pinout: Hello and welcome to this new lesson in which we're gonna talk about the ESP 8266 pin out. Now, what you need to know is that the most widely used ESP aided or 60s if Development Board as ESP 01. Now the USB 826612 MCU kit. And we most D1 many are basically comes in the second, third places when it comes to ESPs, you're the one. That's why we will start with that wealthy and we must do on mini. Then we will concentrate our, let's say, practical lessons on the ESP 01. Now, we will show you the pinout for those sports. If you are using another development board, make sure you have the right pin out, starting with not MCU, ESP 12th. As you can see in this image. Here we have ground down ground and another ground. Now we have a lot of general purpose input, output pins, as you can see here, here. And here. Now, if you saw two columns, it means that this is a dual function pin. So it can be used for this function. For this function. Now, these two functions, two pens are not usable for you. Now the ADC for receiving analog signals. This is why this board is like a development kit. As you can see, it's called a kit because it has onboard programmer, has a lot of general purpose input output pins. It can read analog signals, and it has a lot of pins with dual functions like Flash. A sealant is DA for communication, provide 3.3 volts. As you can see from different pens. Three pins, actually, now we have three or foreground that we can use with any breadboard. So you can use it as a development kit, but we don't recommend it if you want to automate because it costs more than $10. Now the board that we will use will cost you less than $5. And this is why we are recommending that 01. Now, this is regarding the first ball, which is that he SB 12 e. Now the second board is that we must D1, meaning this is the pin out for this board. Now it has less number of input output pins, as you can see, 012345. And here we have 1213141516. So here we have five fans, and here we have six bins. Now in total, about 11 beds. Now it also provide five volts, 3.3 volts, and the ground only three pins, not duplicated like in this bowl. Now, beta1 spends with dual function, as you can see, for that serial communication or for connecting flash. Now, it has one pen that can receive analog signals and tell the recipient. So it's a smaller version of this ball. So it's like less than cost, but still it costs more than the ESP 01. Now, the bottom that we are recommending and we will use is the most widely used Board, which is the ESP 01. It's basically ESP 8266. Esp is your one. And this bond is very small pore. It's like smaller than your fingerprint. And it has only eight bins. It only has four general purpose pins, as you can see here, here, here, and here. And it has one ground Ben and 1.33 volt. Then it has been enabled Ben. And you can see that it supports TX, RX force here communication. So it only support one communication with you all. And again, a very small board consumes the least amount of power it has only for general purpose input, output pins. So you can control up to four devices. And this is basically the ball that we will use. Now we'll talk about more details in the coming lessons. But this last one was just to let you know that we have three boards that are most widely used. All these pores are ESP 01. Yes, B, E, which is the MCU kit. And we must D1 many. So these are the three balls you can use any of these pores. But we recommend the ESP 01 because it consumes the least per amongst our cost, our way much less than the other two boards. And it's very easy to use and program and Kinect. And we will show you this in the practical lessons. Thanks for watching this lesson. 6. 7 The board to be used in this course: Hello and welcome to this new lesson in which we are going to talk about the ESP 018266. We already mentioned that this will be the module that we will use in our course. And as you can see, it's a very small module. It has only eight pens with for general purpose sellable output pins. And the other four pens are used for different functions. Now, ESP one is an inexpensive small size Wi-Fi him would you all watching sits off TCP IP stack along with a built-in microcontroller. We can direct the program this small chip, and can bring Wi-Fi capability in our embedded projects. When first time this chip came into the market in August 2014, I've got a lot of attention by users. The main reason for it to seek attention is that this module allows microcontroller to connect with our Wi-Fi available, and it follows the TCP over IP network. Now, ESPs U1 chip integrates an antenna, balloon power amplifier, filters, and power arrangement module. Yes, P 01 is used to industry or industry and many projects as a wifi module. In this course, we will use it as a wifi module and a microcontroller. Now, this allows any microcontroller or the microcontroller that is available on the board itself to connect to a Wi-Fi network, which is the main thing that we need. Now, it can come in different shapes. As you can see, this one is a blue one, and this is the main schematic. Now, this is the on-board antenna, as you can see, this wire. Here. We have the power to lead the communication lid. Right here we have these eight pins. This one is a general purpose input output pin. And our expense for the CRF communication. And here we have general purpose input output 01, which is the first pin in the cereal, or sorry, the input output pin. Blast, it supports your communication using dxdy. So these two will be used for CSR communication. Now we have a chip enabled pin, we have an external reset button. Then we have the VCC to power the board. And we have the ground. And we have two pins that are for general purpose input output, which are pin number two and then number 0. This one is also used for SPI. So mainly we have for general purpose input, output pins, these 234. This is the ball has eight pins. And now let's specify what each of these pens is used for. Now PIN number one, it's the VCC pen. And that VCC pen is used for input power supply three to 3.6 volt. So you need to make sure the VCC pin right here is only connected to three, or three, up to 3.6 volt. Now we'll also have a ground pin that must be connected to ground. Here. We have the rosette then that is used for external reset signal. Low voltage living will activate this pen. We have other pins, like the CHP D pen right here. The CHP deepen is basically the chip enabled. High means on. The chip works properly. Low means off, and it only allows small current. We also have general purpose on, but output pins for input, output of a digital signal. And we have the TX RX labeled. This means that the spin has dual function. Now, these are used for general purpose input, output and serial, dxdy and our XD, this band and this band. Now the remaining pens like this one journal. But output is basically a general purpose input output pin. And it doesn't have dual function. This is the main thing that you need to know about the pin out, the functionality of that USB 01 board. Now, let's talk about the features. 7. 8 Main board Features: Hello and welcome to this new lesson. You know, try to go on to discuss the main features of ESP 0 on. The first feature is that it is a low power 32-bit microcontroller unit. It uses TCP IP protocol for transmission. It consists of integrated switch, but on power amplifier and matching network. It works on 802.11 b g n Wi-Fi with a frequency of 2.4 gigahertz and WPA and WPA2, which is Wi-Fi protected access. It also consists of thin bit analog to digital converter that supports SPI. You are I squared, I squared as a remote control BWM, general purpose input, output. It's deep sleep power is less than ten microgram and power down leakage current is less than five. My clamp. It's wake up and transmit packets is less than two milliseconds. Standby power consumption is less than one millivolt. Its output power is plus 20 dB men, 802.11 B moved. Its operating temperature range is between minus 40 degrees. It easiest to a 125 degrees series here. These are the main features. And for me the main features are it's Wi-Fi support, the low power consumption, and low cost. Thanks for watching this lesson. See you next. 8. 9 Add Board to Arduino IDE: Hello and welcome. I'm the Senior lesson in which you are going to add yes, be 8266 to the Arduino IDE. The first step is opening up Arduino IDE. Now once you have the Arduino IDE opened, you need to go to the preferences. Now go to File Preferences. Now inside this Preferences window, you need to add this line. Arduino the DSPS to 66.com slash stable slash package underscore ESP 8266 com, underscore index.js on this line is responsible for adding the ESP a 266 support to the Arduino IDE. And this one is responsible for adding the ESP 32, which is not what we are aiming for. So just add this line. Now if you couldn't find it, just Google Arduino, ESP 8266 Jason. And you will find this path, paste it here. Okay? And after doing that, the next step is going to Tools board. And here we have a list. Here we have the board go to the boards manager and the board's manager, you need to look for ESP 8266. And as you can see, it's this library. But you need to do is to install this library. Now, it's already installed here, so I will just update it. Now it will download the required files and install these files into your system. Now once you are done with this, you will see that it's installed. So close this window. Now, you can easily navigate to see the ball in your Boltzmann shall go to Tools. And from there go to board. And from there, scroll down, you will see that you have options. Here we have ESP 8266 moles, 3.2. And from this list you can see the different versions of this ball. And there is an endless number of versions that really are endless. As you can see here, we have the ASP wealthy module that we talked about earlier. And let's scroll down. Here we have the infant one module. Here we have a generic module. Now what we need is the generic ESP a12 66 generic module, which is this one. So make sure that you have selected this version. I will show you that version again board. Yes, P A2, 66, go up all the way up to 66 generic module, which is the version that we will target. Now, that's it for this lesson. If you have done all the steps height, you should end up here choosing the general ESP 8266 module. If you face any problems, you can contact us via messages or the Q&A board. And we will be more than happy to help you solve your issue. Thanks for watching. This is Ashraf. 9. 11 Prepare Web Interface to Control Device: Hello and welcome to this new lesson. Today, we will create our interface to control, let's say, lead or relay or device and turn it on and off. To do that, simply go to playing the CC. And here on the blank platform, you need to login with that account that you have created. Now we already created an account or previous lesson. So we'll use that account to login to our dashboard. Now once you login to your account, you will see this page. And on this page, you can create new templates. And template is a digital model of a physical object like a device. It is used in Blink platform as a template to be assigned to devices. So let's create a new template. Click here, and let's call it ESP 2601. This here on the hardware, choose ESP H.263 sex, and the connection type, choose it to be Wi-Fi. Here you can add a description. This device on and off. Now, hit Done. Once you hit Done, you'll see this page in which there is a very important information. Here we have the blank template ID and the plane device name as assigned by us. Now template ID and device name should be included at the top of your main firmware, which is basically our Arduino code. Now here you can edit the template name, hardware, connection, type, and description. If you scroll down, you can change the manufacturer. You can add categories. You can choose offline, ignored period, and you can add hotspot effects so that you can recognize this device. You can even add a template image, which will make your template more visually attractive. Now there's the metadata here regarding the device name on or location, time zone and name. You can change these data streams. And we'll talk about that in a minute. There's events, there's Web Dashboard, and there's mobile dash. Now, let's talk about data streams. Let us dreams is a way to structure data that regularly flows in and out from device. Use it for sensor data and telemetry or actuators. Now, events is basically an online or offline events. You can add more events if you wish, by adding the FN name called and tied. If this information warning critical or content, you can send events to replication tab of your mobile app or send events to that timeline, which will make that visible in the timeline. If your device or app, you can even apply a tag for that event. Now, you can add a notification to enable notification. When an event happened, like sending emails and they got push notification or sending an SMS. And here you can see the notification limit, which is basically the vigil at which you receive that notification. You can see the notification every 13 minutes or 30 minutes, sorry. Here you can add a counter and you can enable notification Manager. Now, if one pack here, again, you can see the event name and code right here. You can choose warning and let's say temperature. Let's make it red. Now. This will be an event, temperature events that will send us identification to my email list. Let's select Device Owner every hour if something went wrong. Now, now, just to make sure that you understand things, you can taste the event creation by sending it from device using blank, using that firmware API or a rest API. Now you will use the event code in your Arduino code in our case, to send events. So whenever blink receives an event code of temperature, it will know for sure that this event must be triggered and we'll send you an email to this address. Now, you can write something like blank dot log event and tweet to the balanced parentheses, you can add the temperature. Now, this is a whole different story. So now you learnt how to create an event. And we created a new event. Now, the online and offline are also events and this is the code that you can use to communicate with them using your code or your firmware code. Now, regarding data streams, data streams are channels that are used to send data between the device and blink cloud. We will be using that data stream to send random values from your device or values like on and off to tear a specific device on and off. Now, you can click on that new data stream. From here, you can create a digital pen. Analog pen, or a virtual pen. Will use virtual pen for this lesson. And once you see this, you need to choose a name for your virtual pen. Let's say on. Now, this is the owner of pen. Now that virtual pen name, we will keep it at v 0, which stands for virtual 0. Now, change the data type two integrals. Now, you can even change the amino and the maximum value from 0 to a 100, but we will leave it to 01 because these are the two values that we will send and receive. Now, you can change the advanced settings, but we won't need this. And once you are done and you're satisfied, you can even change the icon and hit the Create button. Now, you have created a data stream and the name of the steam is on-off prem. Once you are done, you can create more data streams if you wish. But what we need to do is to go to the web dash. Now, in this web dashboard, we need to add an on-off button or switch. So you can simply drag that and drop it here. This will be your on-off button. Now you can place it wherever you want. You can increase the size to make it easier. You can change the settings by writing on off switch. Now you need to link it to another S3. And in our case we have only one data stream, which is on often v 0. Now the value will be one, value will be 0, which makes sense. Change this to blue. Now, you can show the labels. So on labor will be device is on, off, label will be device is off. Now you can even change the position. Here it is on the right. We can change it to left. Now you can hide that widget name. I will keep it. Once you are done and satisfied with what you see, click Save. And here it is. Now we have the on-off switch. This is the name or AB. Now, other things that you can do is adding a slider. For analog values. You can even add a label. You can add a chart, a mob, and other modules. Now, we just need an on-off switch to show you exactly how to communicate with this interface. Now, once you are done, click Save. This is what you will see as you can see, device on, device off. Now this is the web dashboard that you can use to control your device. In the next lesson, we will talk about how to code your Arduino to receive this and turn the device on and off based on this switch. Once we are done with that, I'll show you how to create a mobile app using your iPhone or iOS or Android phone. And how to create a data stream and the user interface for your app so that you can easily control that device from anywhere with an Internet connection using that app. That's it for this lesson. Thanks for watching. This is Ashraf. 10. 12 Coding Your Board: Hello and welcome to this new lesson. We're going to start coding our Arduino. Now, we go to the Start menu and look for Arduino. Now, the first thing that you need to do is to go here, copy, click to copy these two lines and add them at the beginning of your code. Here we added these two lines. Now we need to define or to import. The libraries. Include and less important, the first level, which is ESP 8266 y phi x. Now the second library is the blank simple. Asp A22, 66 dot txt. Now, these are the two main libraries that we will use. Now our codes. Now, you need to make sure that the ball that you have selected is they ask people. So here we have generic ESP 8266 module. Once you're done, as you can see now, this is a library that they SPF nice. Let's try to verify the code. Now save it somewhere that is recognizable for you. Now. It's fine, I'm cold and hit the Save button. It will compile the sketch to make sure that it can recognize these two libraries without any issues. Now as you can see, it done compiling, so everything's okay. Let's define a few variables. Char, syndicate. Here we will add the authentication that we will get from our app. We also need to add the SSID for our Wi-Fi network and the password for our Wi-Fi network. Now after doing that, we need to go inside the setup function. Here. Sit the pinMode folder bin that we will use, which is 0, as outputs. Make sure that software or firmware recognizes this pen as output because we need it as output. Now, in order to connect with the blank website or blink servers, we need to use the blink function. Linked up again. Now this function will take three parameters, authentication, the SSID, that path. Now, these two will be to make sure that all boats connect to the internet. This authentication will be a unique number to tell our blink server that we are the ones who are trying to connect to that app. So we will teach you how to get that number. Well, the next lesson. After that. Now, let's go and directly inside the void loop. And by the following. The first thing that you need to write is blank. Now, this will run the link library continuously and it will do the initialization and settings. As I'm doing that inside that loop function, let's add an if statement. So if Alice now move this inside the if statement, you need to write a flag. Now, flag is a variable that we will define in a minute. Now, if this flag is on equals one, we need to do the following. We need to send digital light to the pen that we are using, which is the control pen. And in our power nor case, that control pin is pin number 0. So 0. Now 0 p sit below. If flag value is on equals one. Now this is low because the relay turns on when the pen have ground connected to it. Now, we will copy the same line and we'll paste it here. But change this to high. This is high because the relay turns off when the pen have VCC. Now, this will be more clear once we crave the function that will set the flag value. Now, let's work on the flag variable. So let's go back here. We need to define a few more values. First, let's define the on, off, on, off and make it equal 0. Char flag equal 0. And char is the underscore on equal 0. And another charge, e state equals 0. Now, move on and create our function, call it blank. Underscore lights. Now, inside this function, we will do the flag thing. In here. Add that virtual pin number, which is v 0. None site on, OFF equals as integers. Now, let's create an if statement. So f. Else. Now inside the if statement, we need to ask if on inside the parentheses we need to write our code. Now. We need to add a condition to notify us just once every chance. So add f and inside it. Alright, not equal E stayed on what she is the variable that we created here. Now inside it, we can add a serial print n. We kinda statement like tear. After that statement, add e state equals one is the off equal 0 and the flag equals one. Now, what you need to do next is simply to copy this whole f statement and added inside the else. Basically what you need to do is to change this to off, change this to this to 0, and the flag to 0. Now once you have done with this, you need to make sure that you are enabled the serial since we are using the serial library here. So let's add a defined line here. Define blank, underscore, brand, Syria. Now let's do a quick summary of everything that we have done so far. First, we define that template ID and the device name, which are the values that we got from the website. We define the serial to use it for debugging. And we included the library and the blink library. We created three variables for the authentication token and for our Wi-Fi network name and password. We defined for variables for tracking of the on-off signal. And to turn the device on and off, we wrote the blink right function targeting VCE approaches the virtual pin number 0 that we used in the blank app. Now inside here, we checked the state of our pen. And the main thing with that state, we turn the device on using these flags. Now this flag is used in the loop function. Right here. F flag, it will turn the device off. Elsewhere, tell tone, and the flag values are set here. As you can see, a flag equals the 0 state for device will be off. So ie state off and it will print on the cell monitors turn off. Now, if flag equals one means our devices on, and it will turn on the device. So if flag value equals one, it means that the virtual pen on our blink, the device is on. So we set the flag to one. After setting the device on. And basically inside the setup function, the pinMode pin number is 0, then that we are targeting. And we're setting that when as output. And here we are starting that blink begin function with these three variables, that authentication, token, the Wi-Fi network name and password. And inside here we are running the blink function and we are checking the flag to turn the LED or the device on, and that's it. This is our code. In the next lesson, we'll create an Android app on an iOS app to control this code and we'll get the authentication from that cold. Thanks for watching this lesson. This is optional. 11. 13 Create Mobile Interface to Control Your Device: Hello and welcome to this new lesson. Now, let's download that blink app. Go to your phone and write blink. As you can see, here, we have more than one tab. Now the one that we need is the first one. Blank. So let's download this app. And as you can see, the last update was two months ago. Shouldn't take long to download and install the app on your phone. This is the user interface. Now as you can see from the description, this app is used to control Arduino, Raspberry Pi, ESP, and either balls to help you build a smart home or robot. So it's a very useful app and it's provided by blank. As you can see, they have more than one AB and they have blink for Internet of Things, which is the new app. So let's download this one as well. Now, both of these apps works the same or using the very same concept. As you can see, the different apps provided by them. Cutting edge power. Now, this app is basically a drag and drop. Things are. Blink is a simple and powerful low-code application builder where you can prototype, deploy, and manage connected electronic devices at any scale, from your personal projects to millions of products used by your clients. It's a very useful app and you can easily connect your hardware like ESP theta2, arduino, Raspberry Pi, seed, spark funds products, add fruit products. So the possibilities are endless. You can easily connect supported devices and remote control them. They are telling you that this is the new version. And as you can see, it only has five ratings. So let's open this app. Now. You need to login using the same credentials that we created previously. And you need to write your password. Slides are very long password. That's why it's taking some time for me to now hit the login button. And as you can see, no devices here. Now you can add a new device or you can go to the developer mode. Now, once you click the blue bar mode, you will see the device that we have created. So click on it. And here it's telling you how to add a widget, how to resize our tab and all that. We need to move tab on the widget once to open when your settings and you can even duplicate widget. Now let's hit Okay, I'm ready. Click the plus sign. We need a battle. Now, this is the on-off button that we will use. Now. The click. And while you are clicking, move it for anywhere so that you can place it. Now click once to open the settings, call it on, off button. Make it center line to lift the data stream to be Vizio. And you can choose either push button, switch. I will leave it at switch. Now the onwards own upwards of the text sizes use the text color is blue. The sign here it is. As you can see, this is our button on our on-off button. Now you can add other words just as well. You can add sliders. You can add joystick, can add a value display, an LED, as you can see, even at a gage LCD display, super charged terminal. You can add different tabs to your ab time input. And you can even add a music player. So a lot of possibilities. Now click on the gear icon. This is the template ID, and this is the tile icon. Now you can change it. Now here we have created a template and the developer mode. Now if you wanted to create a new device, you can eat. Do that by clicking Add new device. Now, as you can see here, power on your device and made sure that indicator is blinking. Now, this feature will help you add new devices and use them, control them using this app. So if you have a smart device, you can turn it on and blink. I will try to detect it. Now if you went back to the moon, this is the template ID. And again, you can change the type of this AB, which is the thiol app key-value type button to Audible app to our collage. And this is everything you need to do to create a simple app using that link AB. Now, what you need to do next. Now once you have created the app and you have set everything, you need to go back here to your console. And from this menu, you need to create a new device. Hit my devices, flick new device. And from here, click from Template. And what you need to choose the template that we have created. The device name will take the very same thing. Click Create. And now we have your device. Now, this is the dashboard and this is the authentication token. So what you need to do is to copy this. All you can copy the whole thing and go to your Arduino code simply based on these two lines. So to move this application, now here we have the authentication tall. That's it. Now, you're absolutely the future that blink app on your phone off and on. You will be able to see the device on your device's list. And as you can see, the device is now offline. Now once you click on it, you can easily control this button to turn your device on and off. If you have reached this point, then everything is going. Okay. The next lesson we will upload the code or ESP board, and we will taste the on-off button. Thanks for watching this lesson. This is Ashraf. 12. 14a Hardware Connection Explained: Hello and welcome to this new lesson. In this lesson, we are going to explain the circuit connection. For this to work. The first thing that you need to do is to connect the power supply. Now here we know for sure that this will be our 3.3 volt pin. So it will be our power supply pin, and it must be connected to the 3.3 volt. Then right here. Now, we also know that the 3.3 volt pin must be connected with that. Using this number is just the value here will be ten kilo-ohm. The next step is taking this wire outside and connecting it to our button. Now, the other half or the other part of this pattern will be connected to the ground. Now this will be our recipient. Now, the next step is connecting 3.3 volt or the VCC band right here. Let's use another color connecting the VCC pen to the enabled Ben, which is number four right here. So we need to grab some and connected here. So now we have V CC ben injected with a 3.3 volt. Then on the TTL, this is the TTL. The VCC pen is also connected with the enabled Ben ESP 0 on. Now, it's also connected using a resistor ten kilo to that second bend, which is the steepen. And it's also connected to a switch to ground, which is the connection that we did here. Now, we also have another band, which is the t XD pen. This pen must be connected with the XD band right here. So TX RX. Now, one more thing that we need to mention is that we have a TX and RX pin. Now, we need to connect the ground pen to the switch, as we mentioned earlier. Now the second pin here will be left without connecting it to anything. This one is the general purpose input output pins 0, which is basically that pin that we need to connect to ground. The programming code. Now when we want to program, we need to press this button or simply connect this to ground. Now, we also have the last sprint here, which is that then the RX deep end. And we need to connect it with the dx. And right here. Now one thing that I need to mention, this is the whole circuit and these are all the connections. Now you need to make sure that the r x dx ground and 3.3 volt pins are connected. Now this switches are very important switch because it will help you reset the ball. And you also don't know all you need to know that the general purpose input, output when 0 must be connected to ground during programming. Now other people prefer to buy a USB to TTL programmer that has all of this built in and that is specialized for ESP 01. And you can look this up by searching for USB, TTL, ESP 01. But this is basically the connection that 3.3 volt then TX RX ground. Now usually the TX and RX gets mixed up. So if you face a problem, you can switch them. Connect that dx here on the Alex here, and it should work the switches for reset and the general purpose input, output pin 0 must be kings to round during the programming wound. These are the main laws regarding that service connection. Now, one more thing is that this pattern, that pattern is basically a button that you need to press if you saw the connecting line on the Arduino IDE while loading the code, which is something we will explain in the next lesson. And if it couldn't connect to your board, you need to press the reset button just to make sure that you have received the board and Arduino IDE light that code to this board memory. Thanks for watching this lesson. Now, let me summarize the connection by doing a quick drawing. Now let's say that this is our ESP. Here we have append that must be connected to 3.3 volt and must be connected to a resistor ten kilo ohm. And we need to connect it with the second. Then after that, we need to connect switch and connect the other terminal of the switch to the ground pen. Now this ground men must also be connected to the ground on our speech TTL. Now this will be left without connecting tiny thing. This is the general purpose input, output and 0 must be connected to ground. During programming. This pen, the forefront is a negative two dx. Now, this pen must be connected to the x. This pen must be connected to 3.3 volt. So we connect directly with this point. That's it. Now, let me change the color. This is this pen, this pen, this pen, this pen. On the USB to TTL board. This is the connection. In a simpler way. If you have any question please ask and you're on the ball. Again, the spins are the 3.3 volt around our x. And this is the ground pin on the ESP, and this is that it bends from our ESP. Esp. Thanks for watching this lesson. See you next. 13. 15 Programming The board: Hello and welcome to this new lesson. Now, let's talk about how to load your code on the ESP A2 0 or successes, or ESP 01. Now here I'm using the F to the programmer, and as you can see, it's called CP 2000s to your USP to TTL. Now, this is my ESPs, your one ball. This is the reset button. Here we have the four wires for power, ground, RX and TX from the module connected to art board, as we explained in the previous lesson. Now, after doing this connection, you will see that you have a USB port or a USB device connected neural Device Manager in your Windows device. Now, you'll likely find this device as not recognizable. So you might need to go and download that drivers. And you already added the link to the resource of this lecture. You can go to Google and dry ESP, 8266, USB drive up on Windows ten. Now you will end up with a GitHub link. Now, you can go and open that GitHub link to download the drivers. But make sure that you are the first director, which is ESP EDI 266. Now, there is also other links that can be used to get the driver's. You can simply write cp 210 x USB to your bridge, BCP and drivers. And you'll end up with this page. Go to the download section. From here you can select your operating system, Universal Windows driver, Mac OS, Windows driver, and the driver with your mirror. And here are different softwares for Linux and adult tribes. Now the Universal Windows driver will do the job and you just need to go here. Now we reflect on the device and hit the update driver button or uninstall driver, and choose the directory where you installed the driver or downloaded on your system. Now if you face any problem getting this driver to be recognized, we are here to help you and we already provided links to download that drivers and we attached them. Now, once you have the driver and the device up and running, you will see this Silicon Labs CP to 110 x USB to your art bridge. Come eight. You need to go to your code. Inside your code, you need to go to the Tools Board, hit the ESP 8266, and from there select ESP 8266 module, which is the genomic module. Then scroll down to the port and select column. Once you have done, hit the upload button. Now, if everything is connected correctly, the code should be uploaded without any problems. Now it will take a few minutes to come up, a few seconds to compile. Then it will solve the uploading process. Now as you can see, the compiling process does take some time, like ten to 30 seconds. Okay? Now connecting, different thing is connected correctly. You should see this lighting and the person that will keep increasing until it reaches a 100%. That's it, a 100 per cent. Now it's telling you to how to set via our Ts pen. So simply press the button. And now our code is loaded on the USBE board. And the next lesson, we will install this board on our module and test it out using the blink out. Thanks for watching this lesson. This is Ashley. 14. 17 Final Testing and Code edits: Hello and welcome to singular song. Now, we have tested the board and our code and we found out that there is a problem. The board did turn on and the relay switch, but it wasn't easy to turn it off. So I have made a few edits to the code just to make sure that it will work smoothly to turn the devices on unblock. Now the first thing that we need to mention is that this re module works just fine. But you need to know that this module will turn on. If they received, the relay will switch if they receive an off signal, and it will turn off if it received on signal. So this is the first piece for inflammation. Now inside the blink tried function, as you can see, we are targeting V 0, which is the pen that we use in our app, or blink AB. Now here's the button. Now, if we received using this function and on signal or off signal. So if you receive one or 0, alpha received one, we want to store one inside the onLoad and 0 inside the variable ball of loop. And we have defined these two variables to be integers up here. Now, the button or fewer received 0 from the blink AB. We will save 0 inside the onLoad and one inside the loop. Now, going inside this, as you can see, here, we have the vaults of the function. Nothing new here. Now, inside the void loop, blink the tongue. That's the same thing as before. But here, if on Lw equals one, so if you receive an on signal, we will send a signal to 0, which will basically turn on the relay all switch to relay on. Basically it will target the anomeric laws of our delay. Now if we received one or the afloat equals one, it means that we need to turn off the relay. And it will found a relay normally open. So we will send high. Now this is again as the common sense, which is that low is on and off button our case. And in this module, low means that the relay will switch on. High means that the relay will switch off. That's why it's called offload. Now, this is our code and what we need to do at this point is two, let's say, upload the code. So I will reconnect IS people in front of you just to make sure that you can see everything that I'm doing. Now to do this, what we need to do is the following. This is the relate module. So we need to take off the ESP Z11 from that module. And we need to place it right here on our PSP ball. And we already mentioned that connection, so I won't repeat it. Now, let's connect the wires. This is the ESP sorted with threads, black with black. And in my circuit, white we'll go with Brown. And the other y and go with the ESP is L1. So here we have it. Now we have to ask me, I just need to plug n. They SP port. Now, let me connected. Now as you can see, our borders on the ESP is what we need to do. Next is simply check the device manager. Make sure that we are selecting the right board. Here's the component, come eight here, and the tools, we have the import command selected and the generic ESP eight to 66 module selected. Now upload the code and it will take few seconds to combine. Meanwhile, let's try to open up the length pi b e. Now, I will login to my dashboard to check. Okay, now as you can see, Nicole is being uploaded seven per cent per cent on moving forward. The core reach a 100%. Okay, now done. Once you are done, you can hit the reset button. And that's it. Now what we need to do is we need to disconnect. The USP will make sure that there is no power now to move these four wires. And all they ask people. Now we have the code. So we need to connect module by module. But it is. Now we'd have two wires, the lungs while is for Vcc. And Vcc is basically that is y of t. And the other one is the Wi-Fi AP, which is the ground. So I've connected with the black pen. Now let's turn it off. Now as you can see, we have it on here, we have all device. It's an offline mode since a Sunday. So we'll wait for our ball to connect all the Wi-Fi network. Now sometimes you need to elicit the doubled, but we will wait a few seconds. Now this is the rosette gram. Now, we will wait for the ESP to connect our Wi-Fi network. Now, let's proceed with the very final step, which is the finance this thing. Now, this is our device and this is our switch. Now on, off switch, the device is on. And you can see from the blue LED right here is that the device is on. Now when I switch it off, as you can see, the blue LED is now the one underneath the ball. Now it's on, now it's up. The same thing will happen when you connect the on, off, on, off. Now you can connect and off your electrical devices using the normally open and come on pins. Now, that connection is very straightforward. You just need to connect the neutral directly from your wall socket to electric device like a fan. And a new trial needs to be connected through the normally open and common pens and our ball. That way, you will be able to turn the fan on and off via this web interface or via your mobile app. That's it. This is everything you need to know. And if you face any problem and any stage, I'm here to help you fan flushing this lesson. This is Ashraf. 15. Practical Testing: Hello and welcome to this new lesson. Now, let's this out this poll. As you can see, this is the ESP 01 connection and this is the speed to TTL programmers. Now what you are going to do is disconnect the USP and remove the whaling. Now, let's take away the USBE board and put this aside. Now, we have our ASB 01 bold, and we have this. This is the module that we are going to use. It takes five volt DC and can withstand AC and DC. And here it has the ports, two ports normally closed, normally open and common. The VCC and ground, which takes five volts. It needs five volt operate. So we will connect ground and VCC from this USP to TTL programmer. Now we need to make sure that we have five volts, as you can see here. So simply move this pin from 3.3 volts to five volts. So now we have the ground and five volt pins, which are red and black. Now, let's drink male to male wires. Okay, I don't have the same color, so we'll go with this. I have white foreground and the oral drawn 45 volts. So white foreground and orange for five volts. Now let's start with connecting that ground pen to the left, which is the white wire. And the second wire is the Vcc pen, which is the orange wire. Let's use this screwdriver. Okay? Now, let's connect the orange wire. Now. We have it connected. We need to play our ESP bold like this. This part is made for the SP one. So you don't face any problem connecting it, as you can see, just stick it in place. Now, let's connect the USB port to turn it on. Okay. Now you can see here we have a blue LED and added let. Now pressing this pattern, who received the SP bold and it will try to connect Wi-Fi network again. As you can see on our screen, we have the ESP 8266 tastes. And as you can see here, if we flipped device on, it will turn the device on and you can see the blue lid on. Now sometimes there might be a little bit delay. Now, if you click off, it will turn the device off.