New Platform, made in Italy: Arduino Leonardo ETH using W5500 chip for Ethernet

Arduino Leonardo ETH

The new Arduino Ethernet Platform is launched:


Arduino Leonardo ETH
Arduino Leonardo ETH using W5500
Arduino Leonardo ETH with PoE
Arduino Leonardo ETH with PoE








It’s the latest original Arduino Platform Board from Italy using our W5500 chip for native Ethernet I/F support.
Two versions are available:

  • without PoE (Power over Ethernet)
  • with PoE converter assembled

A nice feature is also the printing of signal names at the sockets.

With our ‘new’ W5500 the Ethernet performance and usability is increased a lot. We hope many Makers will enjoy this new quality of Internet connectivity. says:
” …
The Leonardo ETH is a microcontroller board based on the ATmega32U4 (datasheet) and the new W5500 TCP/IP Embedded Ethernet Controller (datasheet). It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a RJ45 connection, a micro USB connector, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.
The Leonardo ETH differs from the preceding Ethernet board in that the ATmega32u4 has built-in USB communication, eliminating the need for an external USB-to-serial converter. This allows the Leonardo ETH to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port. It also has other implications for the behaviour of the board. Plus, it has the new W5500 TCP/IP Embedded Ethernet Controller onboard.

An optional Power over Ethernet module can be added to the board as well.

The Leonardo ETH has the same Wiznet Ethernet interface as the Ethernet Shield 2.
An onboard microSD card reader, which can be used to store files for serving over the network, is accessible through the SD Library. Pin 10 is reserved for the Wiznet interface, SS for the SD card is on Pin 4.

The original Product page here:

The original Blog about launch:

Thanks Arduino for selecting our W5500

Arduino Leonardo ETH
Arduino Leonardo ETH
Arduino Leonardo ETH with PoE
Arduino Leonardo ETH with PoE









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