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Topic: Home Snow maker automation (Read 1 time) previous topic - next topic


Hey everyone. I do back yard snowmaking. This comming year i would like to automate my system. I want to see what my system pressures are and control simple sprinkler valves when i click a button. I dont want to have a computer on 24/7...
i have
-eirther net
-two pressure transducers
-micro sd card

My problems are
-how do i display an html page that i made using notes?
-How do i make it a webpage that can be seen from a phone or an internet devise when im at school or away?
-how do i hit a button that says automate and will turn on the valves when there is a temp reading below 28 out?

Code: [Select]
 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 = client.read();
       // 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("Connnection: close");
         client.println("<!DOCTYPE HTML>");
         // variables for pressure transducer reading
         float pressure = 0; // air pressure variable
         float wpressure = 0; // water pressure variable
         int pressureunits = 0; // values read from transducer
         int i;
         // for the pressure transducer
         float uhigh = 918; // reference value read by transducer at the high end
         float phigh = 200; // reference pressure at high end
         float ulow = 102; // reference value read by are transducer at low end pressure
         float plow = 0; // reference pressure at low end
         float wulow = 72 ;// reference value read by water transducer at low end pressure

         // 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
         client.print("Home Snowmaking");
           client.println("<br />");
         pressureunits = analogRead(A0);
           int AIR = (pressureunits-ulow)*(phigh - plow)/(uhigh-ulow);
           client.print("Air Psi");
           client.print(" is ");
           client.println("<br />");      
         client.println("<meta http-equiv=\"refresh\" content=\"5\">");
         // output the value of each analog input pin
           pressureunits = analogRead(A1);
           int Water = (pressureunits-wulow)*(phigh-plow)/(uhigh-wulow);
           client.print("Water PSI ");
           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");

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