Surplus item priced to move!
Flanged bearings are easy to install; the flange provides a stop for quick positioning.
SparkFun's minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader.
The HD2 tracked platform is a large, heavy duty tracked robot with the power to pull a truck and climb stairs. A wealth of internal space allows for batteries, controls and an optional computer. Customized version of item TP-200-001.