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A000022
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Availability date: 0000-00-00
Arduino Leonardo ETH without PoE
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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 board uses the standardized 1.0 pinout, consisting of:
- added SDA and SCL pins: beside the AREF pin, two TWI pins have been added. This will allow to connect the Leonardo ETH to Shields that use the I2C or TWI bus communication for their functioning.
- the IOREF: it allows the shields to adapt to the IO voltage level provided by the Board. The Shield that uses the IOREF pin will be compatible with both 3V3 and 5V (e.g Due and Uno) IO levels Arduino Boards. Next to the IOREF pin you can find another (currently not in use) pin, that is reserved for future usage.
You need to download the software and follow this step by step guide.
ARDUINO MICROPROCESSOR | |
---|---|
Ethernet | 802.3 10/100 Mbit/s |
ARDUINO MICROCONTROLLER | |
---|---|
Microcontroller | ATmega32u4 |
Architecture | AVR |
Operating Voltage | 5 V |
Flash memory | 32 KB of which 4 KB used by bootloader |
SRAM | 2.5 KB |
Clock Speed | 16 MHz |
Analog I/O Pins | 12 |
EEPROM | 1 KB |
DC Current per I/O Pins | 40 mA on I/O Pins; 1A on 3.3 V Pin only when powered via external power supply |
GENERAL | |
---|---|
Input Voltage | 7-12 V |
Input Voltage PoE | 36-57 V |
Reserved Pins | 4 used for SD card select; 10 used for W5500 select |
Digital I/O Pins | 20 |
PWM Output | 7 |
Power Consumption | 82 mA |
PCB Size | 53.34 x 68.58 mm |
Card Reader | Micro SD card, with active voltage translators |
Weight | 28 g |
Product Code | A000022 (without PoE) - A000023 (with PoE) |
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