Quantity   Component name
1 × Micro controller (maybe pro mini or Teensy3.2) One Controller to rule them all!
1 × RTC (ds1307 or other) Real time clock for alarms, logging, etc (may or may not be necessary depending on the micro selected)
3 × Drivers (like VND830) These wold be necessary to drive pump, fan and other loads
1 × Temperature, humidity and ambient pressure sensor measure PV=nRT and adjust accordingly.
1 × Water Pump small peristaltic pump
1 × Soil moisture sensor prevent over water, under water.
1 × Tank level sensor Measure water level in holding tank
1 × LCD Display current conditions
2 × O2/CO2 detector Read levels of CO2 inside and maybe outside unit
1 × LEDs Lots and lots of RED and BLUE LEDs Plants require light
1 × Dirt Electronic Components / Misc. Electronic Components
1 × Container
1 × http://www.burpee.com/vegetables/cabbages/chinese-cabbage-pak-choi-toy-choi-hybrid-prod000626.html
1 × LED PCB This is most likely 40 hours of development time plus manufacture lead time.
1 × Control PCB This is most likely 40 hours of development time plus manufacture lead time.