This project has many parts and optional components.

For the sprayer device:

• Can Gun or Spray Extender
• Micro servo or high-torque micro servo
• Paper clip or other small piece of wire
• Rotary tool for drilling mounting holes
• Zipties and/or E6000 adhesive

For the plug-and-play power circuit:

• Piece of Perma-Proto or other perfboard
• 5V regulator or UBEC Step-Down (Buck) Converter
• Premium jumper wires
• Header pins
• Velcro tape
• Soldering station and supplies

General quadcopter stuff:

• 3D printed prop guards (now updated for IRIS+)
• extra propellers
• spray paint with straw from cleaning spray bottle
• stiff wire for mounting sprayer - we found that tomato cages work great