1.2. What you will need

These additional items are also needed for using and assembling the Romi 32U4 Control Board:

Required accessories

• a Romi Chassis Kit (this includes motors, wheels, one ball caster, and battery contacts)
• a Romi Encoder Pair Kit
• six AA batteries. The Romi chassis and control board work with both alkaline and NiMH batteries, though we recommend rechargeable NiMH cells.

Assembly tools

• soldering iron and solder (we recommend one with adjustable temperature control like the Hakko FX-888D Digital Soldering Station)
• small Phillips screwdriver
• USB A to Micro-B cable to connect the board to your computer for programming and debugging

Optional tools

• small 2 mm slotted screwdriver for adjusting the LCD contrast
• small pair of pliers
• wire cutter and stripper, for adding wires for peripherals
• tape or small clamps (for holding parts together when soldering)

Optional accessories

You might also consider getting these for your Romi 32U4 Robot:

• an 8×2 character LCD
• a compatible Raspberry Pi (Model B+ or newer, including Pi 3 Model B and Model A+)
• sensors, such as optical or sonar range finders
• connectors and jumper wires, for connecting additional sensors and components
• battery charger, if you are using rechargeable batteries; since the Romi just uses ordinary AA batteries, we recommend basic AA chargers (into which you stick the individual cells) available at most general electronics stores, though we carry a much fancier iMAX-B6AC V2 balance charger/discharger that can be also used for this