The electronic highlights of the Tradinno include the in-house development of the hardware and software of nine modular control units. These each contain two processors, the DSP (Digital Signal Processor) from Texas Instruments responsible for regulation and control, and a Fujitsu microcontroller for communication. The FlexRay communication via nine star-coupled nodes, which ensure redundant 2 x 10 Mbit per control unit with a sampling rate of 200 microseconds (µs) for LVDS (Low Voltage Differential Signaling) data transmission, meets all requirements with regard to safety aspects. The connection of the drives and sensors, which are also all double redundant, also presented the electronics development team with a number of challenges. Meanwhile, the mechanical development team planned to meet the mechanical requirements of the steel colossus weighing several tons. The four-legged entrance of the 15.50 m long, 3.80 m wide and 4.50 m high robot in particular often caused headaches. The solution, seven degrees of freedom of movement per leg, which enables both curved and parallel offset crab steering, has impressed robot specialists worldwide. The design of the control concept in conjunction with the mathematical walking algorithm has since been patented by Zollner Elektronik. Just over a year ago, all the legs were assembled and put into operation.