The Arduino Ethernet is a microcontroller board based on the ATmega328. It has 14 digital input/output pins, 6 analog inputs, a 16 MHz crystal oscillator, a RJ45 connection, a power jack, an ICSP header, and a reset button. An optional Power over Ethernet module can be added to the board as well.
The Ethernet differs from other boards in that it does not have an onboard USB-to-serial driver chip, but has a Wiznet Ethernet interface. This is the same interface found on the Ethernet shield. 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 Revision 3 of the board introduces the standardized 1.0 pinout, that consist in:
the IOREF that allow the shields to adapt to the voltage provided from the board. Shields that use the IOREF pin will be compatible both with the board that use the AVR, which operate with 5V and with the Arduino Due that operate with 3.3V. Next to the IOREF pin there is a not connected pin, that is reserved for future purposes
The 6-pin serial programming header is compatible with the FTDI USB cables or USB-to-serial breakout boards. It features support for automatic reset, allowing sketches to be uploaded without pressing the reset button on the board. When plugged into a USB to Serial adapter, the Arduino Ethernet is powered from the adapter.
USB connection is off-board, we strongly recommend using a (USB to Serial Converter + USB miniB Cable)
Pins 10, 11, 12 and 13 are reserved for interfacing with the Ethernet module and should not be used otherwise. This reduces the number of available pins to 9, with 4 available as PWM outputs.
NOTE: This is 100% GENUINE ARDUINO board.
Arduino Ethernet Features:
- Microcontroller: ATmega328
- Operating Voltage 5V
- Input Voltage Plug (recommended) 7-12V
- Input Voltage Plug (limits) 6-20V
- Input Voltage PoE (limits) 36-57V
- Digital I/O Pins 14 (of which 4 provide PWM output)
- Arduino Pins reserved:
- 10 to 13 used for SPI
- 4 used for SD card
- 2 W5100 interrupt (when bridged)
- Analog Input Pins 6
- DC Current per I/O Pin 40 mA
- DC Current for 3.3V Pin 50 mA
- Flash Memory 32 KB (ATmega328) of which 0.5 KB used by bootloader
- SRAM 2 KB (ATmega328)
- EEPROM 1 KB (ATmega328)
- Clock Speed 16 MHz
- W5100 TCP/IP Embedded Ethernet Controller
- Power Over Ethernet ready Magnetic Jack
- Micro SD card, with active voltage translator
Arduino Ethernet Dimensions:
Arduino Ethernet Package:
- 1 x Arduino Ethernet w/o POE Module
Arduino Ethernet Resources: