This pair of 4 pin Female/Male header strips is very useful for Arduino board extensions. They can be used with any Arduino shield because of their height.
These are assorted headers that are great for many projects. They are spaced with the standard 2.54mm or 0.1". (5) 2, 3, and 4 pin headers. (3) 5 pin headers, and (2) 10 pin headers.
This is a direct drive 4WD robot kit that uses Nexus mecanum wheels. The mecanum wheels allow it to vector in any direction.
This is a SDR 4-wheel drive remote control robot kit. It uses four powerful wheelchair motors and 35AH batteries.