Show Posts
Pages: [1] 2 3
1  Topics / Home Automation and Networked Objects / Need to built restaurant system on: August 18, 2013, 03:30:57 pm
I want to know what is the requirment to built restaurant system. The system should have price checker also use touch screen which and also connected to the internet, to send most of selling details. what are the requirment?
If I use a tablet with android and develop an application for the restaurant, I will have some problems with the price checker, how can I integrate the tablet with price checker, to respond when ever there is money in money out, please give me your suggestion, I need some help.

2  Using Arduino / Displays / Re: How to do wall portrait with the arduino? on: July 31, 2013, 06:33:38 am
Yes, I need one that could be hang up in the wall with good sizes, how much it will cost?
3  Using Arduino / Displays / Re: How to do wall portrait with the arduino? on: July 30, 2013, 01:01:06 pm
Yes, I need to do such a project that will change the picture automatically every 10 min, by using my memory card, I need some help
4  Using Arduino / Displays / How to do wall portrait with the arduino? on: July 29, 2013, 09:47:38 pm
I want to start wall portrait project, I want to ask is there any kind of screen that could be use for this purpose?

5  Using Arduino / Networking, Protocols, and Devices / how to change the IP addresss of the arduino when it's assign as a server on: March 30, 2013, 04:08:11 am
Hi ,

 I'm facing a problem in networking , the problem is how to solve the static IP problem , when I set the arduino as a server and give it a name and IP addresss , then I move out from my home and try to connect to my IP address far from home , the problem I'm facing right now is :
When I give it a static IP address and upload it to the arduino , I have to change it every time because the network is changing the IP address for the devices that is connected to it's network , So what I'm facing right now , is how to change the arduino address to it's real ip address , when it's changed by the network . for example : if I'm using the webserver in the examples and upload it to the arduino ,  I have to change the IP address dynamicly when ever it's changed by the network . I hope you have understand my problem . please change the code by using the same example if you want to help , so I can match it with the real one , and see the difference .

  Web Server
 A simple web server that shows the value of the analog input pins.
 using an Arduino Wiznet Ethernet shield.
 * Ethernet shield attached to pins 10, 11, 12, 13
 * Analog inputs attached to pins A0 through A5 (optional)
 created 18 Dec 2009
 by David A. Mellis
 modified 9 Apr 2012
 by Tom Igoe

#include <SPI.h>
#include <Ethernet.h>

// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192,168,1, 177);

// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);

void setup() {
 // Open serial communications and wait for port to open:
   while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only

  // start the Ethernet connection and the server:
  Ethernet.begin(mac, ip);
  Serial.print("server is at ");

void loop() {
  // listen for incoming clients
  EthernetClient client = server.available();
  if (client) {
    Serial.println("new client");
    // an http request ends with a blank line
    boolean currentLineIsBlank = true;
    while (client.connected()) {
      if (client.available()) {
        char c =;
        // if you've gotten to the end of the line (received a newline
        // character) and the line is blank, the http request has ended,
        // so you can send a reply
        if (c == '\n' && currentLineIsBlank) {
          // send a standard http response header
          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/html");
          client.println("Connection: close");
          client.println("<!DOCTYPE HTML>");
                    // add a meta refresh tag, so the browser pulls again every 5 seconds:
          client.println("<meta http-equiv=\"refresh\" content=\"5\">");
          // output the value of each analog input pin
          for (int analogChannel = 0; analogChannel < 6; analogChannel++) {
            int sensorReading = analogRead(analogChannel);
            client.print("analog input ");
            client.print(" is ");
            client.println("<br />");       
        if (c == '\n') {
          // you're starting a new line
          currentLineIsBlank = true;
        else if (c != '\r') {
          // you've gotten a character on the current line
          currentLineIsBlank = false;
    // give the web browser time to receive the data
    // close the connection:
    Serial.println("client disonnected");

Regards ,
6  Using Arduino / Sensors / 0V7670 camera module on: March 25, 2013, 08:49:10 am
Hi ,

I have bought this camera module , and I'm having a problem in using it . can someone help me in using it ?
7  Using Arduino / Project Guidance / Re: Serial monitor with microless UNO on Atmega8?? on: March 25, 2013, 02:22:18 am
Sometime you should try to use baud rate of 9600 .

8  Using Arduino / Project Guidance / Re: Directly connect Arduino Mega (with ethernet shield) to computer without router? on: March 25, 2013, 02:10:21 am
is it possible to have a DIRECT ethernet connection between the laptop and the arduino board?

Hi ,

You can connect the arduino sheild to the computer by using the ethernet cable , you just need to assign IP for you computer and assign subnet mask , I don't know about it in windows 8 , but you will see it wired properties in network configuration , I have used many times with windows 7 and ubuntu ,  you can set it as a server and let your laptop as a client , then you can test the arduino , maybe in a web browser.
9  Topics / Home Automation and Networked Objects / Re: Home automation project on: March 14, 2013, 02:33:08 am
So just how much do you know about your HVAC? It probably already has a 24v controlled starting contactor.

Thanks Zoomkat , I always like what you always do ,

No problem I need any thing that will help me , For HVAC what should I use normal 16 relay will not help me .
Also for any devices that is more than 30A what should I use to get it controlled by the arduino .
10  Topics / Home Automation and Networked Objects / Re: Home automation project on: March 13, 2013, 06:51:40 am
The normal home switch can be switched off by pressing the button , I need a switch that can be used to switch off by pressing a button also by accepting a digital input from the arduino.

 I have solved it already , let me make it clear for you , those digital logics means the output pins for the arduino , So I was searching for something that give me a parallel output from the serial input of the arduino , then I have saw the shift register which I can use just 1 pin to control an infinite number of devices . if I placed any device with any one output from the shift register this will give me what I need . I just have to send it all zeros except one value is one and this will be up to 64 which mean 6 pieces of 8 output shift register , Every switch in my home I have to connect it in parallel with the relay as it's shown in the picture . I hope I have make it clear for you .

What my problem is right now is :
I want to know if there any kind of Hybrid Relays . not that one with 15A I need more than 240V/30A Relay to control my HVAC?
11  Topics / Home Automation and Networked Objects / Re: Home automation project on: March 13, 2013, 05:25:11 am
Circuit breakers are _safety_ devices. Arduino relay systems are _hobby_ devices.

Please don't even think of making any mix of this is an electrical fuse boxe of a house. The day that your arduino burns and your insurance company doesn't pay you a dime, you'll regret to have chosen the wrong hobby !

thanks for the reply ,

This is what my company asked for , I'm not trying to play with circuit breaker , I'm  searching for a circuit breaker that will act as PowerSwitch tail || , which can be controlled by microcontroller . Even I just want to control 64 device with it , no matter if it's circuit breaker or other .
I'm having other problem about the buttons , what is the buttons that can be used in this project . the issue is that it needs to be feed up with power so when it's pressed it's will send HIGH to the arduino then the arduino should take an action for that . I need to feed 64 buttons with power . So it can be used as switch .

Regards ,
12  Topics / Home Automation and Networked Objects / Re: Home automation project on: March 13, 2013, 03:06:01 am
Hi ,

thanks to you all .
When you active one equipment, can it be able to be used in manual mode?
Yes I have done a general truth table for that . one arduino can control up to 64 device . I can use 6 pin from arduino for that . pow(2,6)=64 . 6 for output and 6 for the input . In truth table I have made until 34 the other 30 is for future usage . and 000000 is for cutting electricity for the whole house . For the buttons or switches I can let the button send it's logic to the arduino and then the arduino will understand this comes from switch of FAN1 then it will send an output logic to close this FAN1 '000010' . this is for beginning solution but for far I will think for a better solution .  I'm having a small problem in how can I send these logics in parallel and how the arduino can get the inputs in parallel . this is the real problem ?
Second : Is there any home circuit breaker that can be controlled by a microcontroller and at the same time by switch ?
The circuit breaker in my home has 18 switches . So I need to control these 18 switch with additional 1 for the whole circuit breaker . I need something like it .

You can use relays like below to switch power. Your big issue will be allowing normal manual control while still being able to control via an arduino. Also if you use dual control, how will you know if the device is on or off?

thanks but the problem will be , I need to use many arduino uno to control the whole house .
The relay I will use it but not directly to the arduino , I need to apply this logic then at the end the Relay will be connected directly to the device .

Regards ,
13  Topics / Home Automation and Networked Objects / Re: Home automation project on: March 12, 2013, 10:01:50 am
thank you all ,

but castillo14  we have the team already , but our problem is in technical installation . I can use 8 pins from the arduino to control all of the office . So my question is which is the better devices . that can be used for this purpose ?

14  Topics / Home Automation and Networked Objects / Home automation project on: March 12, 2013, 04:05:26 am
Hi ,

I'm trying to do project to control rooms but I have some problem with devices that I should use it with the arduino . Here is the truth table that I have made for a small project to control 4 rooms and every room has a fan , HVAC and LAMP . So what is the devices that is needed to control those whole thing?
I was thinking to use 8 PowerSwitch , because in my country we are using 110V and 220V So I will connect for each room two . One PowerSwitch tail to control the devices that is connected to 110V and the other PowerSwitch tail to control the devices that is connected to 220V . But the problem is does this PowerSwitch can feed more than 4 or 5 devices , and how can I know the maximum ability for it to feed devices . I have here some picture of a device that I will may order . but I need to know what it maximum ability to feed devices .
15  Using Arduino / Project Guidance / Home automation project on: March 11, 2013, 09:32:36 am
Hi ,

I want to use arduino to control my home , my question is what is the good idea for that ? and also can I replace the circuit breaker with some device that be connected directly to the arduino ?

Regards ,
Pages: [1] 2 3