A000022 (ARDUINO)

The Leonardo ETH is a microcontroller board based on the ATmega32U4 and W5500 TCP/IP Embedded Ethernet Controller. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analogue inputs), a 16 MHz crystal oscillator, a RJ45 connection, a micro USB connector, a power jack, an ICSP header and a reset button. Simply connect it to a computer with a USB cable or power it with a AC/DC adapter or battery to get started. The Leonardo ETH 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. An onboard microSD card reader, which can be used to store files for serving over the network, is accessible through the SD Library.