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Feature

It's a controller R3 Board with a built in Wiznet 5500 ethernet module, contains everything you need, does not to work with another Arduinos
You can quickly make your controller access to internet to build your network application.
Onboard comes with W5500 network module,which can make Arduino as simple Web server or read Arduino digital and analog interface application via network control.
It can achieve a simple Web server through using Ethernet libraries in IDE, meanwhile, support MicroSD card (TF card) read and write, really with powerful functions.
Main ChipATMEGA328 microcontroller; external power7-12v(9v recommended); digital input/output pins: 14of which 6 pins support PWM