Lisa
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 design focusing on cost and simplicity.
Lisa/L
Description
Lisa/L is a dual processor board autopilot designed to allow the possibility of using Linux for Paparazzi airborne code.
Documentation
The documentation about Lisa/L has been split in two: You can have a look at the User/LisaL user manual or the Dev/LisaL developer manual or look at pictures on the LisaL_Gallery gallery page.
Lisa/M
Description
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 AspirinIMU Aspirin IMU and an affordable barometer. Intended usages range from a CAN servo driver to a full blown autopilot or a flybarless heli controller.
Documentation
Lisa/M is only at the stage of prototype. Documentation will follow as soon as the board reaches production stage.
Lisa/S
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.
Other Additional Boards
SWITCH BOARD
It will be very useful to have a board with 4 MOSFET switches communicating with Lisa autopilot with CAN. With this board will be possible to turn on & off de power for onboard equipment like video cameras, video transmitters, etc.
I think a Tension of 5V - 12V and current of 1A máximum should be sufficient to almost onboard equipment.
Here is the schematic for the switch board. Please comments are welcome. I'm currently designing the PCB.
Switch Board Schematic (pdf file
Anyone interested in develop this board?
My e-mail is: azoreanuav(at)gmail(dot)com