La Arduino Ethernet Shield permite a una placa Arduino conectarse a internet usando la librería Ethernet.

Arduino Ethernet Shield sobre una placa Arduino

Para usar la Ethernet Shield solo hay que montarla sobre la placa Arduino (p. e. una Diecimila). Para cargar los sketches a la placa conectarla al ordenador mediante el cable USB como se hace normalmente. Una vez que el sketch ha sido cargado se puede desconectar la placa del ordenador y alimentarla desde una fuente externa.

Conectar la Ethernet Shield a un ordenador, a un switch o a un enrutador utilizando un cable ethernet standard (CAT5 o CAT6 con conectores RJ45). La conexión al ordenador puede requerir el uso de un cable cruzado (aunque muchos ordenadores actuales, incluyendo los últimos modelos Mac pueden hacer el cruce de forma interna).

Al shield se de debe asignar una dirección MAC y una IP fija utilizando la función Ethernet.begin(). Una dirección MAC es un identificador global único para cada dispositivo en particular; asignar una al azar suele funcionar, pero no utilice la misma para mas de una placa.

Una dirección IP válida depende de la configuración de su red. Es posible usar DHCP para asignar una IP dinámica a la placa, pero esto aun no está implementado como función. Opcionalmente se pueden especificar la dirección de difusión y la máscara de subred.

The shield must be assigned a MAC address and a fixed IP address using the Ethernet.begin() function. A MAC address is a globally unique identifier for a particular device; inventing a random one should work, but don't use the same one for multiple boards. Valid IP addresses depend on the configuration of your network. (It is possible to use DHCP to dynamically assign an IP to the shield, but this is not yet implemented.) Optionally, you can also specify a network gateway and subnet.

Using the Ethernet Library

Using the Ethernet Library

The shield must be assigned a MAC address and a fixed IP address using the Ethernet.begin() function. (It is possible to use DHCP to dynamically assign an IP to the shield, but this is not yet implemented.) Valid IP addresses depend on the configuration of your network. Optionally, you can also specify a network gateway and subnet.

Connect the shield to your computer or a network hub or router using a standard ethernet cable (CAT5 or CAT6 with RJ45 connectors). Connecting to a computer may require the use of a cross-over cable (although many computers, including all recent Macs can do the cross-over internally).

Connect the shield to your computer or a network hub or router using a standard ethernet cable (CAT5 or CAT6 with RJ45 connectors). Connecting to a computer may require the use of a cross-over cable (although many computers, include all recent Macs can do the cross-over internally).

Connect the shield to your computer or a network hub or router using a standard ethernet cable (CAT5 or CAT6 with RJ45 connectors). Connecting to a computer may require the use of a cross-over cable (although many computers, include all recent Macs can do the cross-over internally).

To use the shield, mount it on top of an Arduino board (e.g. the Diecimila). To upload sketches to the board, connect it to your computer with a USB cable as you normally would. Once the sketch has been uploaded, you can disconnect the board from your computer and power it with an external power supply.

Connecting the Shield

Arduino Ethernet Shield

The Arduino Ethernet shield allows an Arduino board to connect to the internet using the Ethernet library.

Network Settings

The shield must be assigned a MAC address and a fixed IP address. (It is possible to use DHCP to dynamically assign an IP to the shield, but this is not yet implemented.) Valid IP addresses depend on the configuration of your network.