Michael Schreiber of the Institute for Computer Science at the Universität Bonn sent us some information on their latest robot, NimbRo-OP. The small, humanoid robot is based on a completely open platform with both the hardware and software released under free and open licenses. NimbRo-OP is 95 cm tall (37.4 inches), uses 20 Robotis Dynamixel servos, has a dual-core AMD processor, WiFi, video camera, 3-axis accelerometer, and 3-axis gyro. The initial GNU/Linux software is based on DARwin-OP. Michael says there is ongoing development of software based on ROS. The robot is size-compatible with the RoboCup Humanoid League's TeenSize class. The goal was to get a very simple, working design out as open source so that other groups can start using and improving it. Read on to see a couple of videos of NimbRo-OP in action.