Arduino Ethernet Rev3 without PoE
Arduino Ethernet Rev3 overview
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, an RJ45 connection, a power jack, an ICSP header, and a reset button.
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, and SS for the SD card is on Pin 4.
The 6-pin serial programming header is compatible with the USB Serial adapter and also with the FTDI USB cables or with Sparkfun and Adafruit FTDI-style basic 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.
Key specifications
Datasheet
Arduino Ethernet Rev3 features
- ATmega328 Uno microcontroller with the ETH shield
- Supplied without the PoE module
- USB2SERIAL converter included
- 14 Digital I/O pins
Arduino Ethernet Rev3 specifications
| Microcontroller | ATmega328 |
|---|---|
| Operating Voltage | 5V |
| Input Voltage Plug | 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, 2W5100 interrupt |
| 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 is used by the bootloader |
| SRAM | 2 KB (ATmega328) |
| EEPROM | 1 KB (ATmega328) |
| Clock Speed | 16 MHz |
| Embedded Ethernet Controller | W5100 TCP/IP |
| Length | 68.6 mm |
| Width | 53.3 mm |
| Weight | 28 gr |
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