Arduino Leonardo ETH launched on the market!

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arduino.org launches the new Leonardo ETH board, for users who need a stable Internet connection and the implementation of high speed network communication.

This new board carries an ATmega32u4 , sporting built-in USB communication, eliminating the need for an external USB-to-serial converter. Thanks to this new way of communication, the Leonardo ETH appears to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port. 

 

Moreover, the Leonardo ETH has the new W5500 TCP/IP Embedded Ethernet Controller onboard.

 

The big changes, using the W5500, compared to the W5100, are:

 

  • the W5500 supports 8 independent sockets simultaneously (instead of only 4)
  • it has an internal 32Kbytes memory for TX/RX buffers (instead of 16Kbytes)
  • and, last but not least, it supports High speed Serial Peripheral Interface (SPI MODE 0, 3).

 

The speed of the chip, combined with the new efficient SPI protocol, allows users to implement, as underlined in the first paragraph, high speed and stable network communication, saving, at the same time, power, by its WOL (wake on LAN) and power down modes.

 

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