DigiOiler

The goal was a very cheap, programmable and easy to recreate chain oiler. The heart is a Kickstarter Digispark, a small Arduino development board, for less than 3$ including shipping charge from China. Due to the integrated USB connector it can be easily programmed by the Arduino IDE. Additionally there is not much necessary, only a small circiut, a LED, a button and a box for approximately 12$ (list of parts as PDF under Files in the board archive).