Quantity   Component name
1 × ENC28J60 breakout Sourced from eBay
1 × Adafruit Pro Trinket - 3V 12MHz https://www.adafruit.com/product/2010
1 × Adafruit Pro Trinket LiIon/LiPoly Backpack Add-On https://www.adafruit.com/products/2124
1 × Lithium Ion Polymer Battery - 3.7v 500mAh https://www.adafruit.com/products/1578
1 × Monochrome 0.96" 128x64 OLED graphic display https://www.adafruit.com/products/326
1 × Piezo Buzzer - PS1240 https://www.adafruit.com/products/160