[Arduino_Uno/atmega328p/firmata_ethernet]

Firmata Library - Standard Firmata Ethernet 

  StandardFirmataEthernet is a TCP client/server implementation. You will need a Firmata client library
  with a network transport that can act as a TCP server or client in order to establish a connection between
  StandardFirmataEthernet and the Firmata client application.
  To use StandardFirmataEthernet you will need to have one of the following
  boards or shields:
  - Arduino Ethernet shield (or clone)
  - Arduino Ethernet board (or clone)
  - Arduino Yun
  Follow the instructions in the ethernetConfig.h file (ethernetConfig.h tab in Arduino IDE) to
  configure your particular hardware.
  NOTE: If you are using an Arduino Ethernet shield you cannot use the following pins on
  the following boards. Firmata will ignore any requests to use these pins:
  - Arduino Uno or other ATMega328 boards: (D4, D10, D11, D12, D13)
  - Arduino Mega: (D4, D10, D50, D51, D52, D53)
  - Arduino Leonardo: (D4, D10)
  - Arduino Due: (D4, D10)
  - Arduino Zero: (D4, D10)
  If you are using an ArduinoEthernet board, the following pins cannot be used (same as Uno):
  - D4, D10, D11, D12, D13


StandardFirmataEthernet.ino

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[Arduino_Uno/atmega328p/udpntpclient]

library Ethernet example: UdpNtpClient 

 Udp NTP Client
 Get the time from a Network Time Protocol (NTP) time server
 Demonstrates use of UDP sendPacket and ReceivePacket
 For more on NTP time servers and the messages needed to communicate with them,
 see http://en.wikipedia.org/wiki/Network_Time_Protocol
 created 4 Sep 2010
 by Michael Margolis
 modified 9 Apr 2012
 by Tom Igoe
 modified 02 Sept 2015
 by Arturo Guadalupi
 This code is in the public domain.
UdpNtpClient.ino

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[Arduino_Uno/atmega328p/webclientrepeating]

library Ethernet example: WebClientRepeating 

  Repeating Web client
 This sketch connects to a a web server and makes a request
 using a Wiznet Ethernet shield. You can use the Arduino Ethernet shield, or
 the Adafruit Ethernet shield, either one will work, as long as it's got
 a Wiznet Ethernet module on board.
 This example uses DNS, by assigning the Ethernet client with a MAC address,
 IP address, and DNS address.
 Circuit:
 * Ethernet shield attached to pins 10, 11, 12, 13
 created 19 Apr 2012
 by Tom Igoe
 modified 21 Jan 2014
 by Federico Vanzati
 http://www.arduino.cc/en/Tutorial/WebClientRepeating
 This code is in the public domain.
WebClientRepeating.ino

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[Arduino_Uno/atmega328p/webserver]

library Ethernet example: WebServer 

  Web Server
 A simple web server that shows the value of the analog input pins.
 using an Arduino Wiznet Ethernet shield.
 Circuit:
 * 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
 modified 02 Sept 2015
 by Arturo Guadalupi


Open a browser on address http://127.0.0.1:2080
WebServer.ino

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