• Koala II Research Robot

Koala is a mid-size robot designed for real-world applications. Bigger than Khepera, more powerful, and capable of carrying larger accessories, Koala has the functionality necessary for use in practical applications (like sophisticated battery management), rides on 6 wheels for indoor all-terrain operation, and sports stylish bodywork for attractive demonstrations.

In addition to these new features, Koala retains a shape and structure similar to Khepera, such that experiments performed on Khepera can be migrated to the Koala. The BIOS of both robots is compatible, permitting programs written for one robot to be easily adapted and recompiled for the other.

To facilitate programming of the robot, we support several development environments, from standard cross-C developments to more sophisticated tools like LabVIEW® , MATLAB® or SysQuake. Please note however that this software is just a suggestion and not at all needed to use the robot. Any other programming environment capable of communicating over a serial port can also be used. The communication protocol implemented on Koala is described in the user manual.

  • Compact (30 x 30 cm) and with standard powerful characteristics
  • Modular in order to fit to a large number of needs
  • Easy to use by the connection to very standard and well known tools


  • Compact size
  • Highly modular with a wide variety of expansion options
  • Powerful computational capabilities
  • Easy to control
  • Full Khepera compatibility
  • Affordable
  • Experiments on a full size platform
  • All-terrain indoor experiments
  • Easy transportability (to other laboratories, conferences, etc.)
  • Telemanipulation
  • Path planning and navigation study
  • Object research and recognition
  • Surveillance
  • Object transport
  • Tour guide
  • Automatic vacuum cleaner


Technical Information


Motorola 68331 @ 22MHz






2 DC brushed servo motors with integrated incremental encoders (roughly 19 pulses per mm of robot motion)


Max: 0.6 m/s directly, and 0.38 m/s using factory default PID speed controller
Min: 0.005 m/s using factory default speed controller

Maximum Acceleration

0.075 m/s² using factory default PID speed controller

Maximum Slope Traversal

43 degrees




  • 16 Infra-red proximity and ambient light sensors
  • 4 optional triangulation longer-range IR sensors
  • Up to 6 optional ultrasonic sonar sensors
  • Battery and ambient temperature
  • Motor torque and global power consumption


Rechargeable NiMH Battery with charge level memory
The battery pack can be easily removed and replaced.

Autonomy (4Ah battery)

Approx 6 hours (moving continuously without payload)
Approx 4 hours (moving continuously with maximum payload)

Extension Bus

Expansion modules can be added to the robot such as the KoreBot n board or Kameleon board or PC104 boards. Khepera turrets (with local processor) are also supported using an adaptor turret.
An accessory deck is provided at the front of the robot for mounting any other custom equipment you wish.

User Available I/O

  • 12 digital inputs [5..12V]
  • 4 CMOS / TTL digital outputs
  • 8 power (open collector) digital outputs [12V 250mA/output]
  • 6 analog inputs (10 bit A/D converter, 4.096v range)


Length: 32 cm
Width: 32 cm
Height: 20 cm


4kg with battery
3.6kg with DC-DC converter

Maximum Payload


  • LabVIEW® (on PC, MAC or SUN) using RS232
    LabVIEW® is a trademark of National Instruments.
  • MATLAB® (on PC and MAC) using RS232
    MATLAB® is a trademark of The MathWorks.
  • GNU C Cross-Compiler for native on-board applications
  • Any other software capable of RS232 communication

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Koala II Research Robot

  • Product Code: KoalaII
  • Availability: Against Order, in 2/3 weeks
  • Rs.0.00