Phase 3: Quad Relays controlled via/on webserver
[sourcecode language="c"]
/*
4 parallel Relayes and Arduino with Ethernet Shield
*/
#include <SPI.h>
#include <Ethernet.h>
int led = 2, led2 = 3, led3 = 5, led4 = 6;
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = { 172, 18, 30, 197 }; // ip in lan (that's what you need to use in your browser. ("192.168.1.178")
byte gateway[] = { 172, 18, 30, 10 }; // internet access via router
byte subnet[] = { 255, 255, 255, 0 }; //subnet mask
EthernetServer server(80); //server port
String readString;
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
pinMode(led, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(led3, OUTPUT);
pinMode(led4, OUTPUT);
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip, gateway, subnet);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
}
void loop() {
// Create a client connection
EthernetClient client = server.available();
if (client) {
while (client.connected()) {
if (client.available()) {
char c = client.read();
//read char by char HTTP request
if (readString.length() < 100) {
//store characters to string
readString += c;
//Serial.print(c);
}
//if HTTP request has ended
if (c == '\n') {
Serial.println(readString); //print to serial monitor for debuging
client.println("HTTP/1.1 200 OK"); //send new page
client.println("Content-Type: text/html");
client.println();
client.println("Connection: close"); // the connection will be closed after completion of the response
client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
client.println("<!DOCTYPE HTML>");
client.println("<HTML>");
client.println("<CENTER><HEAD>");
client.println("<TITLE>Simple Home Automation</TITLE>");
client.println("</HEAD>");
client.println("<BODY>");
client.println("<H1>Simple Home Automation</H1>");
client.println("<hr />");
client.println("
");
client.println("<H2>Arduino with Ethernet Shield</H2>");
client.println("
");
client.println("<a href=\"/button1on\"\">Turn On LED 1</a>");
client.println("<a href=\"/button1off\"\">Turn Off LED 1</a>
");
client.println("<a href=\"/button2on\"\">Turn On LED 2</a>");
client.println("<a href=\"/button2off\"\">Turn Off LED 2</a>
");
client.println("<a href=\"/button3on\"\">Turn On LED 3</a>");
client.println("<a href=\"/button3off\"\">Turn Off LED 3</a>
");
client.println("<a href=\"/button4on\"\">Turn On LED 4</a>");
client.println("<a href=\"/button4off\"\">Turn Off LED 4</a>
");
client.println("
");
client.println("
");
client.println("<a href=\"/buttonson\"\">All on LED</a>");
client.println("<a href=\"/buttonsoff\"\">All Off LED</a>
");
client.println("
");
client.println("
");
client.println("
</CENTER>");
client.println("</BODY>");
client.println("</HTML>");
delay(1);
//stopping client
client.stop();
//controls the Arduino if you press the buttons
if (readString.indexOf("button1on") > 0){
digitalWrite(led, HIGH);
}
if (readString.indexOf("button1off") > 0){
digitalWrite(led, LOW);
}
if (readString.indexOf("button2on") > 0){
digitalWrite(led2, HIGH);
}
if (readString.indexOf("button2off") > 0){
digitalWrite(led2, LOW);
}
if (readString.indexOf("button3on") > 0){
digitalWrite(led3, HIGH);
}
if (readString.indexOf("button3off") > 0){
digitalWrite(led3, LOW);
}
if (readString.indexOf("button4on") > 0){
digitalWrite(led4, HIGH);
}
if (readString.indexOf("button4off") > 0){
digitalWrite(led4, LOW);
}
if (readString.indexOf("buttonson") > 0){
//int i;
//for (i = 0; i < 4; i++){
digitalWrite(led, HIGH);
digitalWrite(led2, HIGH);
digitalWrite(led3, HIGH);
digitalWrite(led4, HIGH);
//}
}
if (readString.indexOf("buttonsoff") > 0){
digitalWrite(led, LOW);
digitalWrite(led2, LOW);
digitalWrite(led3, LOW);
digitalWrite(led4, LOW);
}
//clearing string for next read
readString="";
}
}
}
}
}
[/sourcecode]