Quantity   Component name
1 × atmega328 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
1 × 7805ct
1 × OLED newhaven 4x20 display
4 × buttons
6 × http://www.amazon.com/Peristaltic-Connector-Aquarium-Analytic-GHH/dp/B00K63EFQQ/ref=pd_rhf_se_p_d_1
5 × 5x darlington pairs
1 × 12v 2a wall wart
1 × DC female jack
1 × On/off toggle switch