Introduction


Everything has to start somewhere. Once the idea had been formed, it was time to test it by breadboarding components. The motor control unit was breadboarded & taped onto the drive wheels... and off ran Mr. Roboto

Next, the infrared components were tested individually, and gradually assembled into a fully functional unit as each obstacle was overcome. The result is a modulated 8-bit pulse stream that is transmitted continuously - 625 times each second. A matching receiver tuned to roughly 40kHz is used. Note the lack of a shield around the receiver in the prototype photographed at right

Software was then developed for each of the PIC microcontrollers, and printed circuit boards where designed & etched. Components were sourced & purchased, and assembly began. The IR pulse streams at both the transmitter and the receiver are shown on the oscilloscope at left

After many hours of designing schematics & layouts, etching & assembling boards, and writing & debugging code, prototype robots were completed. The latest robot is a 3rd generation prototype. Each new prototype implements new design ideas based on the data obtained from the previous prototypes




(C) 2001 Nautilus Robotics