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hello everyone welcome to controllers
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tech today in this video I am going to
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show you guys how to start using esp8266
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I am going to use the 80 command sets to
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create a web server I am using real term
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as a serial monitor let me just show you
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the port where the ESP is connected to
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as you can see it's comm 6 the
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connection of ESP with the FT 232 is
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shown in the picture you can pause here
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and take a better look go to real term
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and open the port 6 my device is running
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at baud rate of 11 5 200
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it might be different in your case check
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the device details where you bought it
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from check the CR and LF boxes these are
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needed for the 80 commands here is the
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manual 480 instruction sets first we are
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going to take a look at a T command this
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basically checks if the device is
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as you can see the device returned okay
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so the connection is good I am going to
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restart it using the rst command if
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restarted but as you see the last two
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messages it is been connecting to a
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Wi-Fi so I will just restore the factory
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settings to ensure the transparent
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process I am using the command restore
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for that process it is restored to
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factory settings now and there is no
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connection let's take a look at our
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first command 80-plus CW mode is used to
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set the configuration for the device it
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can be configured to use as a station or
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as an access point or both let's first
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check the default configuration adding a
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question mark means we are querying it
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returned to which means that it is in
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access point mode but we want it to be a
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station so that it can be connected to
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our Wi-Fi so set the CW mode as one
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now you can see it's returning one
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now as the ESP can be connected to a
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Wi-Fi we are going to connect it to one
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CW lap is used to list all the access
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points that are available in the range
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it returned three AP mine is the middle
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one it's time to join the access point
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now to do so we will use the command cwj
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the usage of it is given in the example
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basically we have to enter CW equals
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the name of the AP comma the password of
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the AP it is now connected to the Wi-Fi
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but this connection is just temporary
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if the device restarts it will be lost
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to make it permanent we have to write it
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to the default settings
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CW underscore Neff is used for the
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purpose and now the connection is
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permanent let's restart the device and
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test it as you can see it is connecting
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to the Wi-Fi by its own next thing we
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need is the IP address of the device
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CIFS are is the command to do so
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it'd have returned the IP address here
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copied you are going to need it
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we can also use the static IP using the
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SIP Sta death command the example is
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mentioned here itself I am not using one
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this time cause this IP that we got is
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also static and I am okay with it
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zip MUX command is used to set the
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multiple connections by default it is
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set to zero so we are going to set it to
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one so that we can use multiple
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next we are going to create our server
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and 80-plus sip server is used for the
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one creates the server and eighty is the
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port if you want you can set the maximum
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number of connections allowed by the
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server the usage is given here I will
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show you what is meant by number of
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connections in a while let's now go to
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the IP address of our device if you look
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at the terminal the device got a request
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the important part that we are
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interested in is the connection number
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it is zero as mentioned here after IPD
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we are going to send some data to this
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connection 80-plus sips send is the
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the first parameter is the connection
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number and second is the length of the
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data that you want to send in our case
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that the number is zero and length hello
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world is 11 characters next we have to
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send the data once the data length is
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reached you will receive okay
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at last close the connection using sip
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closed equals connection number once
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done you can check the browser for the
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data and yes we did receive the hello
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world let's refresh this page we are
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again getting the request from same
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connection number now to show multiple
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connections I will try to access the IP
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from another browser as you can see this
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time the connection number is 1 so right
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now the device is getting requests from
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2 connections at the same time and I
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will send the data to the connection 1
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let's first close the connection zero
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and see what happens as you can see the
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edge browsers connection is closed
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without any data and Chrome is still
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waiting now I am closing connection one
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which is the Chrome's connections and
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yes the chrome received its data
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successfully we can also check the
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status of the connection using sip
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right now it's disconnected let's
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refresh the edge connection and check
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this time you can see the TCP connection
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is established this time connection
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number is zero again
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I will send hello chrome to the edge and
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close the connection zero and it
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received the data successfully of course
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guys this is just the getting started
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tutorial we will create an actual web
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page in the next tutorial also we will
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work on some IOT related stuff hope you
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liked the video have a nice day
