Quantity   Component name
1 × 3D printed housing and cover See files area for STLs
1 × Adafruit M0 Feather Adalogger https://www.adafruit.com/product/2796
2 × Hydropac valves https://labproductsinc.com/product/hydropac-alternative-watering-system/
2 × 15mL conical tube https://www.amazon.com/Plastic-Graduated-Centrifuge-Measuring-Conical/dp/B07BF6GCXP/ref=asc_df_B07BF6GCXP/?tag=hyprod-20&linkCode=df0&hvadid=241956810441&hvpos=1o1&hvnetw=g&hvrand=17518541148593252162&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9022872&hvtargid=pla-514376286397&psc=1
1 × 3 cell battery https://www.adafruit.com/product/353
1 × Short female headers for Feather https://www.adafruit.com/product/2940
1 × Adafruit Feather OLED wing https://www.adafruit.com/product/2900
2 × JST 11" 3 pin assemblies https://vetco.net/products/jst-ph-connector-male-female-pair-pre-wired-3-pin
2 × JST 3 pin right angle connector https://www.digikey.com/products/en?keywords=S3B-PH-K-S(LF)(SN)
2 × SparkFun Photo Interrupter Breakout Board - GP1A57HRJ00F https://www.sparkfun.com/products/9322
2 × Resistor 1K Ohm 1/4th Watt https://www.sparkfun.com/products/13760
2 × Photo Interrupter - GP1A57HRJ00F https://www.sparkfun.com/products/9299
2 × (optional) BNC output cables http://www.l-com.com/coaxial-test-cable-bnc-female-6-leads-with-tinned-end
1 × microSD card