DFRduino Ethernet Shield V2.1 (Support Mega and Micro SD) Brand_RasPiO 5A power supply instead of

5A power supply instead of 2

and less than 0

at the same time enhancing the accuracy of wind speed acquisition

WS2801 Datasheet (The chip inside each pixel)

although a vinyl-cutter might work OK

DFRduino Ethernet Shield V2.1 (Support Mega and Micro SD) Brand_RasPiO 5A power supply instead ofThe DFRduino Ethernet Shield V2. 1 is now released. This version of Ethernet Shield is not only compatible with Mega 1280 and 2560, but also provides a Micro SD card slot for reading writing. DFRduino 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