My home automation (webserver + HTML control)

Other Hardware Home Automation
1

Hello,

I have been working for 1 months on my Arduino home automation.
What I'm doing is a arduino + ethernet working as webserver, and using HTML in order to control the variables on my mobile telephone.

It has now:

  • RTC
  • Ethernet (w5100)
  • Digital light sensor
  • Relay module
  • Arduino Mega
  • 5v power supply

There are other modules I want to use in the future as PIR, distance sensor, temperature, RF, etc. but my priority is to control my central heating and exterior lights.

I have the webserver working (after spend hours trying to run the string concatenation), you can see a screenshot of my mobile.

I will post as much as I can about the proyect, but I have a doubt:

- What's the maximum distance that arduino ethernet shield can send/receive data from router?
I have connected it to the router and it works perfectly, but when I connect it throw a 20 meters ethernet cable, it doesn't (PC and TV work).

In order to debut the HTML, I have to connect it to the ethernet of my Laptop, and use the WIFI connection to share the webserver to the net.

Thanks in advance

la foto.PNG
la foto.PNG640×960 65.6 KB

2

Hi,

I'm also working on a similar project as you, hope to see some ideas from you!
For now, I've a Mega connected via I2C to the ethernet module (W5100 + arduino together), and the ethernet card has about 20 meter cable (cat 5e) to my router.
It's all working fine here, so I think the distance isn't the problem.

Maybe the power isn't enough? Have you tried a 7,5 volt power supply?

3

I'm using a 5v power supply directly connected to 5V pin of Arduino (avoiding the power regulator in the arduino Mega card).

I have completted the code and it's working perfectly. I have attached it. Variable names are in spanish.

The workig is as follow:

  • Initialize the RTC, ethernet, read variables from ROM (I store it in order to recover them when the power is out), light sensor... etc.
  • Show HTML code
  • When a string from Web browser is received, read this and change variables. Show updated web again.
  • Each 50 seconds update Central heating status and light status, in order to put ON or OFF when they are in AUTO mode.

Domotica_v16.ino (21.1 KB)

4

What I would like to do now is to use a ring connection between some arduinos, because I want to control to much reles and I'm not able to pass all the cable throug the wall, so I will need to distribute some arduinos, connected in ring typology.

5

connected in ring typology.

http://ardweenet.robgray.com/index.php

Unfortunately it's not even close to being ready yet, but PCBs are being fabbed as we speak.

Rob

6

check your network cabel
if the wiring is not in the right order its almost not possible to work over 10m

ethcable568b[1].gif

7

Thanks, I will check the connectors.

Ring typology is an option, other one is the wireless (RF), but I think the last one would be unestable.

Another question:

¿There is any web where I can get my external IP through arduino web client?

(in order to send me when the IP change)

8

you can see your public IP here Ваш IP-адрес. Узнать IP адрес, определить IP-адрес, определить свой IP
or just search on google my ip - Google Search
or here http://ivan.mk/ip

9

Hi,

nice project, can you share your code pls?

thanks

10
  • What's the maximum distance that arduino ethernet shield can send/receive data from router?

I've got an arduino and mega with ethernet shields connected to my router thru ~50' of cat3 four conductor telephone wire wired as 10BaseT.

11

I think the IBorad Pro is very suit for the home automation project like this : )
http://imall.iteadstudio.com/development-platform/arduino/arduino-compatible-mainboard/iboard-pro.html

The board is ATMega2560 + W5100, with SD and XBee socket, many interface breakout for sensor module and display. RTC onboard, and comes with Arduino MEGA 2560 bootloader.