no matter the state of the LED it only prints the if statement.
i just adjusted the code to what is below, and the code will change if i click the button to turn the LED on, then refresh the page the button will change to the OFF mode, but not immediately after clicking the button. im not sure why.
I suspect you are not understanding the client/server nature of HTTP communications. The page won't refresh on your web browser just because something happens on the Arduino. You need to get a new page ("refresh the page") for the new status to appear.
Can you post all your code please, and try to describe what is happening, exactly.
The state of the switch has NOTHING to do with the state of the LED after the snippet you keep posting is done. Why do you expect them to have something to do with each other? Why would the web browser use care about the state of the switch?
so what is supposed to happen, is the arduino prints a line which includes a HTML button based on the state of boolean variable, since i seem to have more success with that. when i click the button i believe the page refreshes, so the line printed should change. it does not so i assume you are right and the page is not actually refreshing.
#include <Ethernet.h>
#include <SPI.h>
byte mac[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //I left the MAC address and IP address blank.
byte ip[] = {
192,168,1,177 }; // You will want to fill these in with your MAC and IP address.
EthernetServer server(80); // Assigning the port forwarded number. It's almost always 80.
String readString; // We will be using strings to keep track of things.
int LivingRoomLight = 9;
boolean lighton = false;
//////////////////////
#define W5200_CS 10
#define SDCARD_CS 4
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
pinMode(SDCARD_CS,OUTPUT);
digitalWrite(SDCARD_CS,HIGH);//Deselect the SD card
// start the Ethernet connection and the server:
pinMode(LivingRoomLight, OUTPUT);
Ethernet.begin(mac, ip);
Serial.println("Ethernet Begun");
digitalWrite(LivingRoomLight, LOW);
}
void loop(){
EthernetClient client = server.available();
if (client) {
while (client.connected()) {
if (client.available()) { // This is all where we start up the server and strings.
char c = client.read();
if (readString.length() < 100) {
readString += c;
}
if (c == '\n') {
Serial.println(readString); // And here we begin including the HTML
client.println("<!DOCTYPE html PUBLIC '-//W3C//DTD HTML 4.01//EN'>");
client.println("<html>");
client.println("<head>");
client.println("<meta name='viewport' content='width=device-width, initial-scale=1.0'>");
client.println("<title>");
client.println("Blajda Home Automation");
client.println("</title>");
client.println("<link rel='stylesheet' type='text/css' href='http://www.ryanblajda.com/wp-content/uploads/2014/09/webserver.css'/>");
client.println("</head>");
client.println("<body>");
client.println("<center>");
client.println("<div class='accordion'>");
client.println("<div id='tab-0'>");
client.println("<a href='http://192.168.1.177' class='tab'>Home</a>");
client.println("</div><!--tab0-->");
client.println("<div id='tab-1'>");
client.println("<a href='#tab-1' class='tab'>Lighting</a>");
client.println("<div class='content'>");
/// THIS PART RIGHT HERE SHOULD CHANGE BASED ON THIS VARIABLE (WHICH IS CHANGED WHEN THE BUTTON IS CLICKED AND THE LED PIN BECOMES HIGH
if (lighton == false) {
client.println("Living Room 1 <input class='left' type='submit' value='On' onClick=window.location='/?livinglighton1#tab-1\'>");
Serial.println(digitalRead(LivingRoomLight));
}
else {
if (lighton == true) {
client.println("Living Room 1 <input class='right' type='submit' value='Off' onClick=window.location='/?livinglightoff1#tab-1\'>");
Serial.println(digitalRead(LivingRoomLight));
}
}
if (readString.indexOf("?livinglighton1") > 0) {
digitalWrite(9, HIGH);
Serial.println("On");
lighton = true;
}
else {
if (readString.indexOf("?livinglightoff1") > 0) {
digitalWrite(9, LOW);
Serial.println("Off");
lighton = false;
}
}
client.println("</div><!--content-->");
client.println("</div><!--tab1-->");
//client.println("<div id='tab-2'>");
//client.println("<a href='#tab-2' class='tab'>IR Control</a>");
//client.println("<div class='content'>");
//client.println("Projector");
//client.println("
");
//client.println("<input class='left' type='submit' value='Off' onClick=window.location='/?projectoroff#tab-2\'><input class='right' type='submit' value='On' onClick=window.location='/?projectoron#tab-2\'>");
//client.println("
");
//client.println("<input class='center' type='submit' value='Up' onClick=window.location='/?projectorup#tab-2\'>");
//client.println("
");
//client.println("<input class='left' type='submit' value='Left' onClick=window.location='/?projectorleft#tab-2\'><input class='right' type='submit' value='Right' onClick=window.location='/?projectorright#tab-2\'>");
//client.println("
");
//client.println("<input class='left' type='submit' value='Down' onClick=window.location='/?projectordown#tab-2\'>");
//client.println("</div><!--content-->");
//client.println("</div><!--tab2-->");
client.println("</div><!--accordion-->");
client.println("</center>");
client.println("</body>");
client.println("</html>");
delay(1);
/*if (readString.indexOf("?livinglighton1") > 0) {
digitalWrite(9, HIGH);
Serial.println("On");
}
else {
if (readString.indexOf("?livinglightoff1") > 0) {
digitalWrite(9, LOW);
Serial.println("Off");
}
}*/
readString="";
client.stop(); // End of session.
}
}
}
}
}
well when the program void setup is run the variable is set to false, and the LED written LOW. so the if else statement should be able to read the state of the LED and variable since it has been set to low....
the output i see from the serial monitor is as follows.
