The DFR0210 is a small and compact Arduino-based robot platform provided by DF Robot. It is based on the Arduino UNO board, and includes a four wheel chassis, two type DC gear motors for drive, four adjustable speed wheels, four wheel encoders, chassis / wheel assembly equipment, ultrasonic sensor, and necessary cabling. The robot is designed to ease the construction and programming processes, so makers can quickly assemble and program their robot without extensive technical knowledge. Furthermore, it comes with detailed instructions and a CD containing the programming and assembly instructions.