2. Materials and Tools

Here are the essential parts you will need if you want to build a similar robot. Except for the LEGO chassis, these items are available either from Pololu or from most electronic component distributors.

• Pololu micro dual serial motor controller
• BASIC Stamp II from Parallax
• Small, differential-drive chassis
• Two long-lever, snap-action switches for use as bumper switches
• Small solderless breadboard
• Two 10k resistors for use as pull-ups for the bumper switches
• 9V battery and battery snap
• Hook-up wire
• Power switch

You might also need these basic tools to prepare you chassis:

• Diagonal cutters
• Wire strippers
• Soldering iron and solder
• Hot glue gun