The Arduino W5100 Ethernet Shield connects your Arduino device to the internet. Just plug this module onto your Arduino board, connect it to your network with an RJ45 cable. As always with Arduino, every element of the platform – hardware, software and documentation – is freely available and open-source.


  • Operating voltage 5V (supplied from the Arduino Board)
  • Ethernet Controller: W5100 with internal 16K buffer
  • Connection speed: 10/100Mb
  • Connection with Arduino on SPI port


The Arduino Ethernet Shield allows an Arduino board to connect to the internet. It is based on the Wiznet W5100 Ethernet chip (datasheet). The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP.

The Ethernet Shield has a standard RJ-45 connection, with an integrated line transformer and Power over Ethernet enabled.

The shield also includes a reset controller, to ensure that the W5100 Ethernet module is properly reset on power-up. Previous revisions of the shield were not compatible with the Mega and need to be manually reset after power-up.

The current shield has a Power over Ethernet (PoE) module designed to extract power from a conventional twisted pair Category 5 Ethernet cable.

Technical Specification:

  • IEEE802.3af compliant
  • Low output ripple and noise (100mVpp)
  • Input voltage range 36V to 57V
  • Overload and short-circuit protection
  • 9V Output
  • High efficiency DC/DC converter: type 75% @ 50% load
  • 1500V isolation (input to output)

Ethernet W5100 shield

  • Производител: TZT
  • Код на продукта: 1073
  • Наличност: 10
  • 13.00 лв.

  • 4 или повече 12.50 лв.

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