Home Code RGB led using an ethernet shield

RGB led using an ethernet shield

by shedboy71

In this example we use the ethernet shield again but this time we connect an RGB led to pins 6, 7 and 8

 

Code

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

#include <Servo.h>
Servo myservo;  // create servo object to control a servo

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address
byte ip[] = { 192, 168, 1, 177 }; // ip in lan
byte gateway[] = { 192, 168, 1, 1 }; // internet access via router
byte subnet[] = { 255, 255, 255, 0 }; //subnet mask
EthernetServer server(80); //server port

String readString;

//////////////////////

void setup(){

pinMode(6, OUTPUT); //pin selected to control
pinMode(7, OUTPUT); //pin selected to control
pinMode(8, OUTPUT); //pin selected to control
//start Ethernet
Ethernet.begin(mac, ip, gateway, subnet);
server.begin();
//the pin for the servo co
//enable serial data print
Serial.begin(9600);
Serial.println(“server LED test 1.0″); // so I can keep track of what is loaded
}

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(“<HTML>”);
client.println(“<HEAD>”);
client.println(“<TITLE>RGB LED on/off</TITLE>”);
client.println(“</HEAD>”);
client.println(“<BODY>”);
client.println(“<H1>RGB LED On/Off</H1>”);
client.println(“<hr />”);
client.println(“<br />”);

client.println(“<a href=\”/?blueon\”\”>Turn On blue</a>”);
client.println(“<a href=\”/?blueoff\”\”>Turn Off blue</a><br />”);
client.println(“<br />”);
client.println(“<a href=\”/?redon\”\”>Turn On red</a>”);
client.println(“<a href=\”/?redoff\”\”>Turn Off red</a><br />”);
client.println(“<br />”);
client.println(“<a href=\”/?greenon\”\”>Turn On green</a>”);
client.println(“<a href=\”/?greenoff\”\”>Turn Off green</a><br />”);
client.println(“</BODY>”);
client.println(“</HTML>”);

delay(1);
//stopping client
client.stop();

///////////////////// control arduino pin 6
if(readString.indexOf(“?blueon”) >0)//checks for on
{
digitalWrite(6, LOW);    // set pin 6 low
Serial.println(“Blue On”);
}
else
{
if(readString.indexOf(“?blueoff”) >0)//checks for off
{
digitalWrite(6, HIGH);    // set pin 6 low
Serial.println(“Blue off”);
}
}
///////////////////// control arduino pin 7
if(readString.indexOf(“?redon”) >0)//checks for on
{
digitalWrite(7, LOW);    // set pin 6 low
Serial.println(“Red On”);
}
else
{
if(readString.indexOf(“?redoff”) >0)//checks for off
{
digitalWrite(7, HIGH);    // set pin 6 low
Serial.println(“Red off”);
}
}
///////////////////// control arduino pin 8
if(readString.indexOf(“?greenon”) >0)//checks for on
{
digitalWrite(8, LOW);    // set pin 6 low
Serial.println(“Green On”);
}
else
{
if(readString.indexOf(“?greenoff”) >0)//checks for off
{
digitalWrite(8, HIGH);    // set pin 6 low
Serial.println(“Green off”);
}
}
//clearing string for next read
readString=””;

}
}
}
}
}

 

Links

Ethernet shield at Amazon UK

Ethernet shield at Amazon

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