1.2. What you will need

These additional items are needed for using the 3pi+ 2040 robot:

• four AAA batteries—the robot works with both alkaline and NiMH batteries, though we recommend using rechargeable AAA NiMH cells
• USB C cable to connect the robot to your computer for programming and debugging

Kit assembly tools

These additional items are needed or helpful for assembling the 3pi+ 2040 robot kit:

• soldering iron and solder (we recommend one with adjustable temperature control)
• wire cutter
• small #1 Phillips screwdriver
• flush cutter, knife, and/or file for cutting supports on the bumper skirt (optional but recommended)
• Tape or small clamps (for holding parts together when soldering)

Additional optional components

You might also consider getting these for your 3pi+ 2040 robot:

• Sensors, such as proximity sensors or range finders
• Connectors and jumper wires, for connecting additional sensors and components
• Battery charger, if you are using rechargeable batteries; since the 3pi+ just uses ordinary AAA batteries, we recommend basic AAA 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