Arduino/C2/Wireless-Connectivity-to-Arduino/English-timed

Time	Narration
00:01	Welcome to the Spoken Tutorial on Wireless Connectivity to Arduino
00:06	In this tutorial, we will learn to: Configure and upload code on ESP8266-01 module
00:17	Establish Wireless Communication between ESP and other devices
00:23	To follow this tutorial, you should have a basic knowledge of: Electronics
00:29	C or C++ programming language and
00:33	Wireless Communication
00:36	To record this tutorial, I am using: Arduino Uno board
00:41	Ubuntu Linux 16.04 OS and Arduino IDE
00:48	We will require a few external components such as ESP8266-01 Wi-Fi module
00:59	Breadboard
01:01	Jumper Wires and Push Button
01:05	In this tutorial we will use ESP8266-01 WiFi module.
01:13	VCC, RST, CH_PD, Tx, Ground, GPIO2, GPIO0, Rx are the pins of the Wi-Fi module.
01:27	Power LED indicates whether the module is ON or OFF.
01:32	COMM LED is the built-in blue LED of the WiFi module.
01:37	In this tutorial, we will see how to control this built-in LED using WiFi.
01:43	This WiFi module has a built-in System on Chip with integrated TCP/IP stack.
01:51	It has a UART and 2 GPIO pins (General Purpose Input / Output).
01:57	It is widely used for development of IoT (i.e. Internet of Things) applications.
02:04	This is the circuit connection of ESP8266 - 01 module with Arduino.
02:12	Note: The ESP8266-01 module works on 3.3Voltz only.
02:20	Connecting it to 5Voltz may damage the Wi-Fi module.
02:24	Connect ground pin of Wi-Fi module to ground pin of Arduino.
02:29	Connect GPIO 0 pin of Wi-Fi module to ground of Arduino.
02:35	Connect Rx pin of Wi-Fi module to Rx pin of Arduino.
02:41	Connect Tx pin of Wi-Fi module to Tx pin of Arduino.
02:47	Connect VCC and CH_PD pin of Wi-Fi module to 3.3V of Arduino.
02:57	Connect a push button between RST pin of Wi-Fi module and ground pin of Arduino.
03:05	This is the live setup of the connection, as shown in the circuit diagram.
03:10	Do the connection as shown here.
03:13	We will establish a connection between WiFi module and a laptop or a mobile phone.
03:20	Now we will write a program in Arduino IDE. Open Arduino IDE.
03:27	Connect your Arduino board to your PC.
03:30	First, we need to know the name of the port to which Arduino is connected.
03:35	Go to the Tools menu. Select Port option.
03:40	In my case, the port is ttyUSB0. Note down your port name.
03:49	Windows users can skip the steps below as the port is detected automatically.
03:56	Open the terminal by pressing Ctrl+Alt+T keys simultaneously.
04:03	Type, sudo space chmod space a+rw space slash dev slash ttyUSB0
04:18	In my case, the port name is ttyUSB0
04:25	You have to specify your port name. Press Enter.
04:30	Enter your password for the system and press Enter.
04:35	The above command gives read-write permission to the usb port.
04:40	Switch back to Arduino IDE.
04:43	Next we will configure the ESP8266 module to communicate.
04:49	In the menu bar, click on the File menu. Select Preferences.
04:56	A new window will appear.
04:58	In the Settings tab, go to the Additional Boards Manager URLs section. Add this json URL.
05:09	This will help to download ESP8266 WiFi module in Arduino IDE.
05:16	Click on the OK button at the bottom of the window.
05:20	In the menu bar, click on the Tools menu and select Board.
05:25	Then select Boards Manager option. A new window will appear.
05:31	In the top right corner, we can see a search tab.
05:35	Here, type ESP8266 and press Enter.
05:41	Select ESP8266 by ESP8266 Community.
05:48	In the version drop down box, select the latest version of the module.
05:53	Click on Install button to install the module.
05:57	Installation will take few minutes to complete.
06:01	Wait until it is installed successfully.
06:05	The ESP8266 module is now installed in the Arduino IDE.
06:09	Click on the Close button at the right bottom of the window.
06:14	Now, before uploading the program we have to select the ESP8266 module.
06:20	Click on the Tools option and select Board.
06:25	Scroll down and select Generic ESP8266 Module.
06:32	Next we need to set the built-in LED of ESP8266 Module. Again select Tools.
06:41	Go to Builtin LED option. Set the Builtin LED to 1.
06:48	Next we will set the Reset option.
06:52	In the menu bar, select Tools. Go to Reset Method.
06:58	Select Reset method to no dtr in bracket aka ck.
07:06	This will help to reset the wifi module manually.
07:10	Now we will write the code. Type the code as shown.
07:16	We have included the ESP8266 library.
07:20	SSID is the name of a Wi-Fi module.
07:24	Here, I have named the wifi network as WIFI_ESP8266_Pratik.
07:34	Password is the passcode to join the Wi-Fi network. And the password for the module is 12345678.
07:47	You have to give your unique ssid and password.
07:52	Password parameter is not mandatory.
07:56	If you don’t give password parameter, Wi-Fi network will be open.
08:01	It will be accessible to everyone nearby.
08:05	This command will enable the default IP address of the module.
08:10	The default IP address of the module is 192.168.4.1
08:20	Inside the setup function, write the code as shown.
08:25	This command will enable the SSID and Password for the ESP8266 module.
08:33	server.begin will enable the Wi-Fi network for the given SSID and Password.
08:40	A delay of 2 seconds is given to boot the module.
08:44	Built-in LED of the ESP8266 module is set to OUTPUT mode.
08:51	Copy and paste the code inside void loop function.
08:56	This code is available in the Code files link of this tutorial You can download and use it.
09:04	This HTML code will generate a web page as shown here.
09:10	When LED ON or LED OFF button is pressed, the value is passed to the program.
09:17	The program checks the value and controls the built-in LED of the ESP8266-01 module.
09:27	Click on the compile button to verify the program.
09:31	A pop up window will appear to save the current program.
09:35	Name the program as WiFi_ESP8266.
09:43	And click on the save button to save the program.
09:48	Now click on upload button to upload the current program on ESP8266-01.
09:58	We can see the program getting uploaded at the bottom of the screen.
10:03	When the state changes to Connecting, press the push button on the breadboard. Release it after 2 to 3 seconds.
10:13	We will see a message as Leaving…. Soft resetting as shown here.
10:20	This indicates that the program is uploaded successfully.
10:25	Switch off your mobile internet.
10:28	Open Wi-Fi option of your mobile phone.
10:32	Search for nearest network to connect.
10:35	In my case, I am getting WIFI_ESP8266_Pratik since I have given this name in the code. Select the WiFi.
10:52	Enter the password and check if it is connected to WiFi.
10:57	Open Web Browser in your mobile phone. Enter the IP address 192.168.4.1
11:11	This is the default IP address of ESP8266-01 Wi-Fi module by the manufacturer.
11:22	The web page opens as per the HTML code.
11:26	We can see the LED of ESP8266-01 module is OFF.
11:34	Click on LED ON button which will turn on the blue LED of the Wi-Fi module.
11:41	It will be ON until we press the LED OFF button.
11:46	Click on LED OFF button which will turn off the blue LED of the Wi-Fi module.
11:52	This brings us to the end of this tutorial. Let us summarize.
11:58	In this tutorial, we learnt to Configure and upload code on ESP8266-01 module
12:09	Establish wireless communication between ESP and other devices
12:15	As an assignment: Check if your PC or laptop has wireless connectivity and do the steps below.
12:23	On the top right corner, click on WiFi icon.
12:28	Select the name of your WiFi and enter the password.
12:32	Open the browser and go to 192.168.4.1
12:41	Select the button and see the output on the ESP8266-01 module.
12:49	You should see the output of the assignment as shown here.
13:03	The video at the following link summarizes the Spoken Tutorial Project Please download and watch it
13:11	The Spoken Tutorial Project Team conducts Workshops & gives Certificates.
13:18	Please post your timed queries in this forum
13:22	Spoken Tutorial Project is funded by MHRD, Government of India.
13:29	This tutorial has been contributed by FOSSEE and Spoken Tutorial Project, IIT Bombay. And this is Saurabh signing off. Thanks for joining.

Contributors and Content Editors

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