Arduino Ethernet W5100 network expansion board SD card supports MEGA
The Arduino Ethernet network extension module with W5100 as the core can make Arduino a simple Web server or a network application such as reading and writing Arduino's digital and analog interfaces through network control.You can implement a simple Web server directly using the Ethernet library file in the IDE.At the same time, this version supports reading and writing of mini SD card (TF card) with powerful functions.
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