DFRobot DFRduino Ethernet Shield V2.1 - Mega + SD speech synthesis shield a green one lights up

a green one lights up when its done

You can also compare it with DFRobot Rubber Wheel 136x24mm Kit - Pair w/ Hubs & Hardware

But the Friend can do much more

It does not only serves as protection but added coolness since the innards are exposed

or A0 to read intensity via ADC

DFRobot DFRduino Ethernet Shield V2.1 - Mega + SD speech synthesis shield a green one lights upDFRduino Ethernet Shield V2. 1 is fully compatible with Ardunio Ethernet Shield. With the offical ethernet library, you can do exactly the same thing as the original one, but at a more affordable price. This Ethernet Shield provides an Arduino controller board with internet access. It is based on the Wiznet W5100 ethernet chip. The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP. It supports up to four simultaneous socket