Quantity   Component name
500 × Breadboard Male to Male Connectors http://www.ebay.com/itm/272255948626?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
144 × 5mm Infrared Emitters (940nm) http://www.ebay.com/itm/161572561596?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
144 × 5mm Infrared Phototransistors (940nm) http://www.ebay.com/itm/50Pcs-5mm-940nm-IR-detector-sensor-Infrared-Phototransistor-/221910679798?hash=item33aae840f6:g:APUAAOSw0HVWBW-9
144 × 100k Ohm Resistors http://www.ebay.com/itm/231558080775?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
18 × 4051 Texas Instruments Multiplexers http://www.ebay.com/itm/10PCS-CD4051BE-CD4051-DIP16-DIP-16-CD4051-multiplexer-dem-ultiplexer-NEW-/181846812668?hash=item2a56ea27fc:g:230AAOSw34FVIo1b
12 × 840 pin Breadboards http://www.ebay.com/itm/142112089301?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
7 × Breadboard Female to Female Connectors http://www.ebay.com/itm/10pcs-Male-to-Female-Dupont-Wire-Color-Jumper-Cable-2-54mm-1P-1P-20cm-NEW-/331893543100?hash=item4d466590bc:g:j3AAAOSwiCRUgAp3
6 × 100 Ohm Resistors http://www.ebay.com/itm/321160616423?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
5 × nrf24l01 Wireless Transceivers http://www.ebay.com/itm/141975887566?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
4 × 10uF Capacitors http://www.ebay.com/itm/5pcs-400V-10uF-10x20-RUBYCON-Electrolytic-Capacitors-105-/361449750926?hash=item542815818e:g:iKcAAOSwCQNWb5U1
4 × Mini USB Type B Connectors http://www.ebay.com/itm/80cm-USB-2-0-Type-A-Male-to-Mini-B-5-Pin-Male-Digital-Camera-Charger-Cable-Cord-/112211409512?hash=item1a20523a68:g:i6EAAOSw5cNYMq6p
4 × Arduino Nano v 3.0 http://www.ebay.com/itm/2PCS-USB-CH340G-Nano-V3-0-16M-5V-ATmega328P-Micro-Controller-Board-For-Arduino-/262123427620?hash=item3d07c61724:g:TuEAAOSw65FXsrEJ
1 × Arduino Pro Micro 3.3V/8Mhz http://www.ebay.com/itm/Leonardo-Pro-Micro-ATmega32U4-8MHz-3-3V-Replace-ATmega328-Arduino-Pro-Mini-D-/112062877389?hash=item1a1777cecd:g:9EEAAOSwWfFXj3u9
1 × Micro USB Type B Connector http://www.ebay.com/itm/1PC-Black-Micro-USB-A-to-USB-2-0-B-Male-Retractable-Cable-Data-Sync-Charger-Cord-/231906527208?hash=item35feb4c7e8:g:06kAAOSwsN9XBxuZ