This is an arduino basic kit for building an omni-directional robot or an obstacle avoidance control system. It includes a DFRduino mega 2560 controller, a mega IO expansion shield, four infrared distance sensors, and two motor drivers.
DFRduino Mega 2560
Input Voltage (recommended):7-12V
Distance measuring range: 10 cm to 80 cm (4" to 32")in 4 Direction