Ethernet shield para Mandar Emails

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hola, tengo que diseñar un pequeño circuito con un sensor dht11 que me tiene que mandar la humedad y la temperatura por email cada hora, visto esta shield y no se si me puede serbir o me podeis aconsejar algun otro:

[url]http://dx.com/es/p/ethernet-shield-with-wiznet-w5100-ethernet-chip-tf-slot-118061#specification/[url]

los emails se tendrian que mandar por algun servidor gratuito como el de gmail, conoceis algun ejemplo?

muchas gracias.



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