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<p>Two aspects of currently available Miniature UAVs (MUAVs) that limit the adoption of  this technology for civil and research purposes are the high cost and closed design  philosophy. This thesis attempts to solve these problems by presenting an open source  design that is focused on low-cost, while maintaining a reasonable level of performance.  The use of Commercial Off-The-Shelf (COTS) equipment is maximized where possible  to reduce development time and cost. A novel approach used by this design is the use of a  Nintendo Wii MotionPlus device as an Inertial Measurement Unit (IMU). This mass  produced COTS part provides a three degree of freedom IMU for minimal cost.  All software is of a modular design to ease understanding and facilitate  improvements. To reduce development time, and to help discover requirements, a Rapid  Application Development (RAD) methodology has been adopted that is suitable for  implementation by a single developer. Software prototypes are constructed and iteratively  built upon to discover more requirements. At the completion of each phase, testing is  performed. Once a suitable level of maturity has been reached, the software prototype is  rolled into the main build. Flight-testing is performed at the completion of the design  along with a quantitative measure of flight stability.
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<br>Subjects: Software engineering.; Rapid application development; quadrotor helicopter; quadcopter; inertial measurement unit; digital signal processing; Nintendo Wii Motionplus; dsPIC</div>
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Burkamshaw, Leon Keith.</div>
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