Discussion in "Project Doubts" started by    Rickey    Sep 20, 2006.
Thu Jan 03 2008, 10:56 AM
#11

Hi Everybody.. Can anyone explain the full operation of the project home automation over internet... i need crystal clear working of circuit..

nIVAS


check the first post.. if anything extra.. ask me..

i.e; for instance , what happens when a command is given from transmitter side.. how does MC receives it.. how it is decoded.. what will MC do with program burned inside it while receiving a command????

nIVAS


When command is sent from transmitter side.. it is sent to software first (HAserver.exe) and then the sent string is transferred to controller via serial or RS232 communication, This is how MC receive the command.
The commands are decoded in strfunc.c file and are converted to a number.. the returned numeric value is using switch case select the function to perform in main function. this everything is inside the controller HAserver is just an interface between controller and the user...

then how will it produce signal to activate the output switches.. what type of switch must be used at output port of MC along with Power line(220v)...

nIVAS


The signal is simple TTL singnal.. high 5V and low 0V. The o/ps are active low.. i.e. low signal activate the switch and high deactivate it.
To connect 220V power appliances.. you need to make use an interface either a relay or an optocoupler. you can make use of the famous ULN2003 to drive the relays of high voltages.

why the LCD is used.. ? then which file should i burn in MC....?? what r that c programs and what should i do with it..

Plz help me out to find answers for the above questions bcoz i m not a electrical or electronic student.. i just loved this project.. so i need to do that .. so help me..

nIVAS


LCD is used to display messages sent from user side.. its just an addon in the project.. like user want to give message to family members. he just have to logon to the server and leave a message.. New message indicator glows and inform that new message arrived..
The C program is the code of Microcontroller.. when you compile these C codes you get hex file which you need to burn on to the controller. you can make use of the hex file provided inside the archive if you do not have a compiler. There is not really any change needed to make in this project so you can directly use the hex file.
Sun Apr 13 2008, 11:26 PM
#12
I just want to say thanks!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!IT works as i expected !first i have doubt in it >>>but this forum helps me a lot!!!!! :bye
Fri Feb 06 2009, 04:43 PM
#13
I am developing a project on Internet based home automation.
we are planning to add and extended feature of manual switching i.e controlling the devices using a net connection as well using a manual switch.Is it possible using a 89C51 micro controller.
Thanking you in anticipation.
Efforts shall be appreciated.
Kindly mail me the details at [email protected]
Tue Dec 08 2009, 03:52 AM
#14
the circuit is devided into four sections,does that mean i will be having 4 units at the end or is suppose to compile into 1 unit?
Tue Dec 08 2009, 07:45 PM
#15
It was just to make explanation bit simple, I explained the complete circuit by dividing it into 4 sections, so that every section can be explained properly. circuit is complete as it looks in the pdf provided along with.
 lechien like this.
Sun May 02 2010, 05:59 PM
#16
i downloaded the code given..I am just confused in which files are to be burned in microcontroler chip...only HA.hex or some other also???
Mon May 03 2010, 06:13 AM
#17
Hi Porwal yes u only need to burn HA.hex
Sun Oct 17 2010, 05:13 AM
#18
Hi ajay, why is that i cannot see the attached file of yours? It seems that i am restricted to this topic. Why?
Sun Oct 17 2010, 08:11 AM
#19
hi romel_emperado
where ru getting problems in seeing files
here every one can download if he is member on this forum
ur also a member dear then where u get problem
Sun Oct 17 2010, 10:40 PM
#20
Hi majoka, where can i download the home automation mentioned by ajay? I think its not here in this thread, i see the first page but there is no files attached. It is in downlad section, right?

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Mon Mar 27 2017, 04:09 AM
priyanja awate
my project is greenhouse monitering and controlling using 8051 .can u give me the program of this project
ExperimenterUK
Sat Mar 25 2017, 09:56 PM
@Noreen I suggest you log in and post a full description of what you need in our PIC forum
Sat Mar 25 2017, 03:10 PM
Noreen
Hello I worked on a project related to Wireless Electricity theft detection using GSM during my bachelors. I used Nokia 6230 for sending sms using AT commands. I chose to work with SMS text mode. The microcontroller I used was PIC16F877A and its software coding done through PIC Basic Pro. Unfortunately, I lost my account password and do not have coding for generation sms using AT commands. I need that coding. Can some one help me to provide complete Pic Basic Pro code. In which step by step guidance is given so that I can understand easily. Regards,
Wed Mar 22 2017, 09:13 PM
ajay kumar
help me nokia lcd light
Wed Feb 22 2017, 06:14 AM
ChollyMo
Indeed, on the LCD tutorial, many missing Tables and figures !!
Wed Feb 22 2017, 06:06 AM
ChollyMo
I don't see any Table 3. I'm using Chrome.
Fri Feb 03 2017, 05:56 AM
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hi, i want interface WS2811 pixel led using NUVOTON N79E352, but i dont know how to code it. can anyone help me or provide me sample coding for interfacing WS2811 PIXEL LED. THNX
Thu Jan 19 2017, 08:42 PM
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Hi...i have made a circuit for interfacing PT100 with LM358 whose temperature is shown on the LCD...But the temperature is not getting incresed slowly ..a small change directly increses the temp...can any one help me
Thu Jan 19 2017, 04:27 PM
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send me alarm clock simulation using proteus software
Mon Jan 16 2017, 03:15 PM
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How can we read notepad file using random acess file

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I have looked at your code.I think you are confuse...
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