Step 1: Order an ENC28j60 Ethernet module on eBay
Step 2: Wire up the Ethernet module
Wire up as following (ENC = module side):
- ENC SO -> Arduino pin 12
- ENC SI -> Arduino pin 11
- ENC SCK -> Arduino pin 13
- ENC CS -> Arduino pin 8
- ENC VCC -> Arduino 3V3 pin
- ENC GND -> Arduino Gnd pin
Markings are on the module in white text. The result should look similar to the picture.
If you done this rigt, the LEDs on the module will light up when the Arduino is powered. Stick in an Ethernet cable and the LEDs on the Ethernet connector should light up, showing local Ethernet traffic.