Lisa ( the Lost Illusions Serendipitous Autopilot) is a new range of autopilots based on STM32 microcontrollers ( CortexM3@72Mhz ) designed to run Paparazzi. There's no such thing as a perfect autopilot, only autopilots adapted to a particular purpose. This is the reason why Lisa comes in different flavors for different usages.
The first members of the family are:
- Lisa/L, a design where the STM32 is associated to a gumstix Overo.
- Lisa/M, a designing focusing on cost and simplicity.
Lisa/L is a dual processor board autopilot designed to allow the possibility of using Linux for Paparazzi airborne code.
Lisa/M is a 50*25mm single processor board, with 7 full size servo connectors. This board is about the size of a conventional RC receiver and features a footprint for an aspirin IMU and an affordable barometer. Intended usages range from a CAN servo driver to a full blown autopilot or a flybarless heli controller.
Lisa/S is only a project at the moment. The focus for this design is size, weight and power consumption. The intent is to produce an autopilot suited for the smallest airframes. For now just a CAD rendering to wet your appetite.