This project is all about using an Arduino with an Ethernet shield. I’ll be controlling one LED and a servo, but you can apply this method to control any electronic device you want. (such as DC motors, buzzers, relays, stepper motors, etc..)
And I’ll be using a brand new arduino board that my friend at BJTechNews Sent me!
Check his youtube channel here for some cool tech tips.
Introduction
The code provided when uploaded and connected to the internet it creates a webserver in your LAN and you simply use the IP to access that webserver through your browser. After that it shows a webpage similar to that one below. When you press the button “Turn On LED” your url will change to: “http://192.168.1.178/?button1on” the arduino will read that information and It turns the LED On.
By default the IP is “192.168.1.178”. That also can be found on the arduino code provided.
Watch this video tutorial
Parts Required
- 1x Arduino Uno
- 1x Ethernet Shield
- 1x 220 Ohm Resistor
- 1x LED
- 1x Micro Servo Motor
- 1x Breadboard
- Jumper Cables
Schematics
![[Schematics]](http://i0.wp.com/randomnerdtutorials.com/wp-content/uploads/2013/11/Schematics.png)
Upload the code below
Note: If you try this project. You can only access that IP address from your home. This means you must be connected to the same router that you’re ethernet shield is connected to. That picture below is from me accessing my webserver with my iPad.
Thanks for reading, you can contact me by leaving a comment. If you like this post probably you might like my next ones, so please support me by subscribing my blog and my Facebook Page.
great achievement and very useful for achieving a home automation with relay perifairique comander of the 220 v or 110 v
Thanks for your feedback!
yes that’s exactly what I want to show.
you can use this code to apply to your own projects for home automation
Wow…. really awesome project dude. You can use HTML also to create attractive and powerful web application i.e. webpage. I will give you link about that.
This is the link here : http://internetofthings-pune.blogspot.in/2013/07/this-is-open-source-home-automation.html
Hi!!
Thanks for the feedback Er Ajinkya Dixit!
Yes we can customize the CSS file and the HTML to create a better webpage. But I’m not very experienced in that programming languages yet. So I’ve just made a basic webpage with my knowledge
Thanks for the resource!
My next webpage will be more customized.
Hi!!
Thanks for the feedback Er Ajinkya Dixit!
Yes we can customize the CSS file and the HTML to create a better webpage. But I’m not very experienced in that programming languages yet. So I’ve just made a basic webpage with my knowledge
Thanks for the resource!
My next webpage will be more customized.
Hi do you have the source code for webpage?
Hi,
yes Con. You can download the source code for the webpage here:
http://randomnerdtutorials.com/download
Or simply click the like or tweet button and the download link will unlock.
the best way is by entering your email and you’ll have access to a secret page where you can
download all my projects every time I release a new one.
thanks for stopping by,
Rui Santos
hmm I pressed like but only got the source code for the arduino not the browser
ignore my previous comments, thanks for the code
would u please send me the android webpage source code
what you mean by the android webpage?
That webpage can be accessed through your tablet/smartphone browser…
and all the code used can be download on this page if you click like.
Thanks for leaving a comment,
Rui
what a nice project rui, but it’s the first time i saw arduino ethernet shield, can you make a tutorial about how to configure ip address or something like that on ethernet shield, or how to configure that on router using dhpc?
Thanks Decka.
Right now I’m working on a different project related to the Ethernet shield.
So stay tuned, because that project will be released soon…
I might do what you’re looking for later though.
All the best,
Rui
okay, good luck on your project bro.
keep it up…
btw it’s dhcp not dhpc, sorry for typo…
Yeah I know, I got it!
Unfortunelety I don’t have time right now to do that. as i said… maybe later
Have a nice day,
Rui
hi sir,
Thank you very much for your reply and i need some more details like i want to get the sensor value through html . .and.i want to know what is going on home through sensor..suppose if any human is enter into the home .it has to inform to web page through HTML using PIR sensor…. so this kind of application i need…i hope you will understand very well,..please do the needful to complete my project as soon as possible…..
Hi Nataraj,
sorry for taking a few days to answer..
I’ve been really busy.
What you’re looking for is an Arduino data webserver…
http://g33k.blogspot.pt/2010/09/arduino-data-webserver-sample-web.html
You can combine that project with mine if you want to customize the look of the hmtl page!
Hi,
Really great projects here! I learned a lot.
A question:
I see when clicking the buttons on the page they work oke for a while bit after some time the site seems to hang. Sometimes texts messed up and nothing works anymore. Do you recognize this? Is there a solution?
I see it happens running IE on my PC but also running Chrome browser and Safari on my iPad.
Thanks jaap.
I’m glad you’re enjoying my projects!
That never happened to me.
It might be a problem with your network/ethernet shield.
In another project I’ve made recently I noticed that sometimes if the ethernet shield is connected for too long, It gets disconnected and no longer works until you reset manually the arduino.
With this webserver project I’ve tested to run for 17hours, 8 hours, 32hours and It worked just fine.
Now what I recommend you to do,
is to comment the project with Serial.print() commands and see where the problem is coming from and how long it takes until it stops…
Just one more question which ethernet shield are you using?
(the one with the Wiznet 5100 chip?)
Hello Rul,
Thanks for your help!
Yes, it’s a shield with the Wiznet 5100 chip. I ordered it from BangGood. Worked fine in other projects.
You wrote: “17hours, 8 hours, 32hours…” but have you also done some testing by using all buttons one after another multiple times? Let’s say 10 time.
Hello Rui,
I think the problem is fixed.
Changed the delay time from 1 to 100 in this part of the sketch:
client.println(“”);
delay(100);
And now my page keeps running…
I’m glad to hear that !
Thanks for trying my project Jaap.
Have a nice day,
Rui
I cann’t open the link
Which link Seva?
if you can help me control the lights via the web, control light intensity,
Search on the web for a PWM project to control the lights intensity.
Then change my code for this project.
so instead of controlling an led to turn on/off you’re going to increase or decrease the light.
Thanks for asking,
Rui
I notice the code references a CSS file. Is it possible to have the code be stand alone? Meaning one would not have to host a CSS file?
yes, you can customize the html without the CSS file.
The CSS just makes it easy to customize the html without repeating the same styling options again and again.
Thanks for asking,
Rui
Hi Rui, I’m trying to adapt your code to control 8 LEDs through internet but I have one problem…With 4 leds, works ok,but if I configure a 5th led, don´t work…..
Can I send you the code to some email to see if you see any faults?? (Ide recognizes the code without errors..)
Thanks and regards
Hi Murp,
I don’t have the time to debug your code I’m sorry…
I don’t know how experienced you are with Electronics, so just a few questions
are you defining the right LED’s pins properly as inputs? are your LED’s in the right way?
Hi Rui, no problem
To your questions, no and yes..Leds are configured as “int” –> outputs and all is connected ok (It works ok with 4 but not with 5..With 5, the buttons are on screen but don´t work if I press any…)
The code, I think that works right (No error on IDE, less than 20000 bytes), but I don´t understand what´s the matter…
With 4, I configured twice:
Pins 2,3,4 and 5
Pins 6,7,8 and 9
And all works ok (Arduino,leds,proto connetions,code…), and for that, I discarded all parts of the system like bad or broken components..
Thanks for all..
Regards
(About my experience with electronics, let’s say my level is medium jeje)
That might be a problem with your html then…
You’re probably doing some sort of mistake that makes an error on the html page (in your ip/webserver page)
and breaks the pages so any button works…
That’s my guess..
Hi
I only add the neccesary code, any more line, any less line, and because I don´t understand what is the problem…
Thanks anyway..
Regards
first of all i would like to say thanks for sharing all those super cool projects.
i was wondering if it is possible to access the web page this arduino serves throught internet when you are not in home if you open a port at your router and set it to forward the packages to arduino (im talking about a simple port forward)
would that work in order to access arduinos web page and controll a device in home from thousand kilometers away through internet?
Hi Dimitris,
You’re 100% right this project could work exactly as you described.
There’s just one problem, anyone with your ip can control your home.
(And that’s really easy to find if someone leaves near you…)
The best way to do that is to encrypt that data and also create some sort of authentication but that requires a more powerful device such as a Raspberry Pi for example.
I’ve made a project that allows you to control your home from anywhere in the world with an arduino and an ethernet shield.
please take a look:
http://homeautomationserver.com/
Hei, it’s awesome project dude. I have a question for you.
After I read this project, can I assume that the LED and servo was controlled over IP? or it’s something different?
You’re right dany.
With this method you can only control the LED and servo if you’re connected to the same router.
Then you open the browser with the arduino webserver ip
Thanks for your response, so just like what I thought. I’m a bit curious, can it works on a linux router? Do you think it can work?
Hi, this is amazing project. But I got a problem when i try to access the webserver through my browser. I typed the address: 192.168.1.178 on my browswer, it shown a blank page. Is it because of my router? Thanks
I’m not sure, It should be working just fine… there’s might be an incompatibility with your router.
Hello Rui,
How i can add more pages to this
say Home Page : Control two relays
First Floor : Control two relays and sensors
Like that
Pls Help
Hello Rui,
How i can add more pages to this project
Say Home Page : Control Two relays
First Floor : Control relays and sensors
Master Bed Room : etc…..
Pls Help
Regards
Hi Hallow,
Simply insert those buttons on my arduino code,
take a look at my code and see how i add the other buttons.
Hello Rui you said earlier that arduino is not powerfull enough for encryption and so anyone might be able to controll your house using this web server.
i thought about it and i modified your code in order to create a simple pin-password that is needed in order to activate the relays.
it is done by declaring a new variable that needs to get a certain value in order to let the relays activate.
in order to give values to this variable i added 12 new buttons for 0-9, * and #
what i am doing is simple or advanced mathematic operations in order to give a specific value in the variable by pressing the correct pin on the buttons i added.
this is the link of the sketch i made.
it may be usefull to someone.
https://www.dropbox.com/s/1w1nolo7i6ufb0p/web_server_modified_pc_control.ino
relays password: 4321
so in this sketch i set the correct variable value to be number 9
when you arrive at the web site the pin variable value is 0 and the relays wont work
so in order to activate the relays you will have to press the button 4 in order to add 4 to the pin variable
followed by 3 in order to multiply the current pin value (4)*3
followed by 2 in order to substruct 2 from the current pin value
and finally 1 in order to substruct 1 from the current pin value
after this the final pin variable value is 9 and now you can activate the relays.
so in conclusion you can select what mathematic operation does every single button, you can use as many digits as you want for the pin (4-5-8-10 buttons) and you can also select the value of every single button, which means you can do pretty much anything with the password.
now another interesting thing i done, is that i set every single button that is not used in the password to reset the pin value.
so if someone just tries to put random passwords he will keep reseting the pin value and wont be able to activate the relays.
you can also use this function if you mistakenly pressed twice a button which will mean that the pin value will be wrong and you will have to reset the pin value in order to re enter the password.
just press any of the unused buttons and the pin is reseted.
you can add big passwords like 8 12 digits and so on to make brute force attacks difficult or you can add buttons with letters too.
i added some pin value reports over serial connection for debugging and also i added 2 outputs in order to connect 2 leds with a resistor on each one of them.
one led is off when the pin value is not yet correct and lights up only when the pin value is correct (password correct)
the second one is kept off when the pin value is lower than the correct one
and is turned on if the pin value is over the correct one.
those 2 leds is just for visual indication of pin-password status (for debuggind purposes again. if you dont want it just delete the line with the comments)
finally the last modification i made is that i removed the servo buttons
and i made the other 2 buttons to activate and deactivate after 1 second in order to controll my computer’s power and reset buttons.
thats it, the project finally is heavilly modifies in order to match my needs but i thought i should post it here because someone may want to use simple password protected relays in this web server project.
i hope you and everyone else likes it.
Hi Dimitris,
Thank you so much for sharing your work!
It’s a really clever idea what you did there.
The data is still not encrypted by SSH for example, so if someone performs a man in the middle attack they can get the raw data and can use to access your webserver. (If you have your router ports open)
Again, thanks for sharing!
I might do a tutorial/project with your idea in mind.
Have a nice day,
Rui Santos
hello i was thinking can this be done by using a arduino yun and not using the ethernet sheild
Hi Tristan,
Definitely the Arduino Yun is really powerful.
In the Arduino IDE examples code tab you will find similar projects that provide you a web interface for your project
hi ! Rui
thanks for the post …
I just want to know why we use arduino uno with arduino ethernet sheild , i want to make a project like yours ,
my question is why arduino uno is necessory with arduino ethernet sheild , and how to connect uno with pc (Which port) ?
and , can arduino ethernet sheild work without arduino uno ?
You can connect your arduino to any pc port you want.
Then in your Arduino IDE you just need to select the right COM port for your project (Usually the Arduino IDE selects the right COM port by default)
You need an Ethernet shield, because the Arduino uno by himself can’t serve a webpage.
Hello rui, im having some trouble with this project and i suspect that somewhere in your code you have made a mistake. since i dont really know to code i thought i should give you some information and maybe you have a clue on whats going on or the possible reason.
the only modifications i have done in your code that is running right now on my arduino is that i completely removed everything that has to do with the servo button-library and instead the button that used to controll the servo now is just an on off switch like the led switch.
the problem is that if you keep your arduino running this code after some days maybe a week or maybe more it stops responding. it stops serving the page and when you try to access the page, the page isnt found.
if you try to ping the arduino ip address it responds to the pings but doesnt serve the page.
in order to fix this all you have to do is to open the arduino sdk and just enable the serial monitor. nothing more! just that!
once the window of the serial monitor opens and the arduino reports that the web server runs on the ip address you set it, then the web page immediately starts to be served again.
i was trying some heavy modifications and found out that the bigger the sketch is the sooner it stops responding and if is big enought it starts messing the program and stops responding so i thought that maybe there is a memory overflow issue or something like that.
then again i dont know if its router related, maybe after some days of no use the router stops to forward the port to the arduino and you have to set the arduino to send packages to the router from time to time so the router always knows that the arduino is still connected-working and needs to receive the packages on the port 80.
i hope you can review your code and find out what is causing this malfunction, because this is a really nice project but this malfunction makes it unusable.