EtherTen

EtherTen

Starting out with a gold plated PCB and the guts of an Arduino Uno, then adding an ethernet shield, including the SD card slot would be great. Freetronics didn't stop there. The EtherTen has a mini-USB connector to prevent shorts, Power over Ethernet support with several options, and a MOSFET on D13 which allows you to use it as an input or output.

PoE options are interesting. There are three different ways of handling it. From the docs:

1. Put a couple of jumpers across the headers and feed about 12Vdc down the Ethernet cable for a dirt-cheap DIY solution. Perfect for use with our 4-Port PoE Midspan Injector.

2. Fit a low-cost PoE Voltage Regulator 24V daughterboard that plugs in and lets you feed up to 24Vdc down the Ethernet cable. Compatible with many low-voltage commercial PoE systems and third-party midspan injectors, including our own 4-Port PoE Midspan Injector.

3. Fit a PoE Voltage Regulator 802.3af daughterboard that negotiates a connection with commercial 48V PoE switches and allows you to run your Arduino and Ethernet Shield on full-power PoE networks.

None of Freetronics' boards are 'me too'. They all have something that elevates them over the typical clone. Clearly a lot of thought has gone into this board, and it shows in the little details. The SPI works the way it shoulld, but doesn't with other boards having the Wiznet chip. RESET is connected between the ATmega328P and the Wiznet.

One feature that I really like is the nomenclature on both the top and the bottom of the board. That can cut your time in half when you are working from the bottom of the board. The only feature I can live without? "Sexy rounded corners".

EtherTen
ParameterValue
MCU ATmega328P
DigitalPins 14
PWM 5
Analog Inputs 6
Analog Outputs 0
Operating Voltage 5
Operating Frequency 16MHz
3.3V Output 50mA
Test Current Draw
Web Site Freetronics
Notes
  1. Information from manufacturers and other sources.
  2. Test current from sketch that exercises I2C, SPI, and analog pins.
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