This Ethernet Shield ensures that the Arduino can be connected to the internet or its own network. This board has a Wiznet W5100 ethernet chip as controller chip. The Wiznet W5100 makes a network accessible with both the TCP and UDP protocol. This chip supports up to 4 sockets that can be kept open at the same time. This sign is connected in no time using the standard Arduino ethernet library. This module also has a built-in SD card reader, with which the retrieved data can easily be stored. The shield can be connected to both an Arduino UNO and an Arduino Mega.
The module has the following indication LEDs
- PWR: Power on
- LINK: Successful network connection
- FULLD: Full duplex connection
- 100M: on when a 100 Mb / s network has been detected
- RX: Data received
- TX: Sending data
- COLL: Network collision detected