Schogini

We can connect an LCD and an Ethernet shield simultaneously with an Arduino , without interfering the pins .
In this problem we should know about the pins of Ethernet shield use in this circuit . Ethernet shield using pins
rx ,tx and digital pins 10,11,12,13 . So we don’t select these pins for the LCD connection. Thus we select digital pins 9,8,7,6,5,4 of Arduino for LCD connection .

Sample code:

/*
Connection details :
1. LCD RS pin to digital pin 9.
2. LCD Enable pin to digital pin 8.
3. LCD D4,D5,D6,D7 pins to digital pin 7,6,5,4 respectively.

 */
#include
#include 

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] =     { 192, 168, 1, 188 };
byte server[] = { 192, 168, 1, 180 }; // Google

Client client(server, 80);

void setup()
{
  lcd.begin(16, 2);//setup coloumn and rows
  lcd.clear();
  lcd.print("Helloworld");
  Ethernet.begin(mac, ip);
}

void loop()
{
        //Ethernet client
        Serial.println("connecting...");
      if (client.connect()) {
        Serial.println("connected!!!!!!!!!!!!!!!!!!!!!!!");
        client.println("http//:............");
        client.stop();
          }
      else {
        Serial.println("connection failed");
         }
        else{
            lcd.setCursor(0, 1);
            lcd.print("Access denied!");
        }
}