Quantity   Component name
1 × ESP8266 Adafruit HUZZAH ESP8266 https://www.adafruit.com/product/3046
1 × 5 Volt Relay https://www.amazon.com/SMAKN%C2%AE-Active-Channel-Arduino-Raspberry/dp/B00VH8926C/ref=asc_df_B00VH8926C/?tag=hyprod-20&linkCode=df0&hvadid=196274408286&hvpos=1o1&hvnetw=g&hvrand=5443939775609934670&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9003934&hvtargid=pla-315539484865&psc=1
1 × Air Rocket
2 × AA Batteries
1 × Orbit 0.75-in Plastic Electric Inline Irrigation Valve Cheap sprinkler valve available at Lowes for $10.97
1 × Misc PVC parts for Laucher
2 × 9 Vot Batteries