Difference between revisions of "Lisa"

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Lisa ( the Lost Illusions Serendipitous Autopilot) is a new range of autopilots based on [http://www.st.com/mcu/inchtml-pages-stm32.html STM32] microcontrollers ( CortexM3@72Mhz ) designed to run Paparazzi.
<categorytree style="float:right; clear:right; margin-left:1ex; border: 1px solid gray; padding: 0.7ex;" mode=pages>Autopilots</categorytree>
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.  
__TOC__
Lisa ( the Lost Illusions Serendipitous Autopilot) is a range of autopilots based on [http://www.st.com/mcu/inchtml-pages-stm32.html 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 the Lisa autopilots come in different styles for different uses.  


The first members of the family are:
The first members of the family are:
Line 6: Line 8:
*Lisa/L, a design where the STM32 is associated to a gumstix [http://www.gumstix.net/Setup-and-Programming/cat/Overo-Setup-and-Programming/111.html Overo].
*Lisa/L, a design where the STM32 is associated to a gumstix [http://www.gumstix.net/Setup-and-Programming/cat/Overo-Setup-and-Programming/111.html Overo].
*Lisa/M, a design focusing on cost and simplicity.
*Lisa/M, a design focusing on cost and simplicity.
*Lisa/S, a design focusing on size and weight.


=Lisa/L=
==Lisa/L==


== Description ==
=== Description ===


Lisa/L is a dual processor board autopilot designed to allow the possibility of using Linux for Paparazzi airborne code.
[[Lisa/L]] is a dual processor board autopilot designed to allow for the possibility of using Linux for Paparazzi airborne code.


[[Image:lisa_l_bloc_diag_simple.png|360px]]
[[Image:lisa_l_bloc_diag_simple.png|360px]]
[[Image:lisa_l_top.png|360px]] [[Image:lisa_l_bot.png|360px]]
[[Image:lisa_l_top.png|360px]] [[Image:lisa_l_bot.png|360px]]


== Documentation ==
=== 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. A link to LisaL Quadrocopter [[User/LisaL/Tutorial/Quadrocopter]]. A link to LisaL FixedWing [[User/LisaL/Tutorial/FixedWing]]. Some more lisa links [[Lisa USB]] final [[Lisa Logitech Camera]].
The documentation for Lisa/L is broken into several parts due to board complexity and Gumstix [[Overo]] integration.
* [[Lisa/L|Main Documentation]] - primary hardware documentation and intro to software
* [[Dev/LisaL|Additional Developer Documentation]] - additional advanced hardware and software documentation and notes
* [[LisaL_Gallery|Lisa/L Photo Gallery]] - pictures of [[Lisa/L]]
* [[User/LisaL/Tutorial/Quadrocopter|Unfinished Rotorcraft Tutorial]] - rotorcraft tutorial, needs considerable work
* [[User/LisaL/Tutorial/FixedWing|Unfinished Fixedwing Tutorial]] - fixedwing tutorial, needs considerable work
* [[OMAP|Gumstix Integration Intro]] - intro and documentation listing for integrating a Gumstix Overo with [[Lisa/L]], including for USB devices and cameras


== Where to get it ==
== Lisa/M ==


You can obtain Lisa/L from the [https://www.jobyrobotics.com/product.php?id_product=10 Joby Robotics online shop].
=== Description ===


= Lisa/M =
[[Lisa/M]] is a great general purpose small-footprint autopilot. There are currently two versions that have been produced. Detailed documentation can be found here:
* [[Lisa/M_v2.0|Lisa/M v2.0 (current) Documentation]]


== Description ==
[[Image:LisaM_V2_0_TopView.JPG|360px|Lisa/M v2.0 Top View]]
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.


[[Image:lisa_m_top_small.png|360px]] [[Image:lisa_m_bot_small.png|360px]] [[Image:aspirin_small.png|360px]]


== Documentation ==
* [[Lisa/M_v1.0|Lisa/M v1.0 Documentation]]
Lisa/M is only at the stage of prototype. Documentation will follow as soon as the board reaches production stage.


= Lisa/S =
[[Image:lisa_m_top_small.png|360px|Lisa/M v1.0 Top View]]


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.
=== Usage scenarios ===
For now just a CAD rendering to wet your appetite.
[[Image:lisa_s_cad.png|360px]]


There are many potential applications for the small, relatively inexpensive and flexible [[Lisa/M]]. For regular Autopilot boards a fully equip [[Lisa/M]] board is needed. For some scenarios just a basic [[Lisa/M]] without an [[Inertial_Measurement_Units|IMU]] and barometric pressure sensor is needed, which reduces the board cost. Here are some ideas (not all have yet to be implemented):


[[Category:Hardware]]
* As a basic Autopilot
** To use the [[Lisa/M]] as an autopilot, you need to attach a GPS receiver. A nice [[GPS#u-Blox_LEA_Series_Receivers|uBlox LEA-5H]] or newer will perform great.
* As an advanced Autopilot
** Additional sensors for measuring airspeed, current, etc. would enhance a fixed-wing airframe.
* As a servo extender
** Sometimes being able to control seven actuators is just not enough. Large airframes may require flaps or an airbrake and automatic landing facilities. Maybe special ACL/Nav lights, or four cameras with zoom. By using a coupled second basic [[Lisa/M]] and connecting this to the master Autopilot board we can extend the amount of servos. Large airframes can also benefit from remote and/or redundant servo drivers.
* As a Safety Pilot Device
** To provide an extra safety level required in some UAS challenges. A second [[Lisa]] board can make it easy to adhere to the rules for such a challenge.
* As a Data Logger
** Maybe you have a need only to log all kinds of data, like temperature, volts, amps, height, airspeed, and not control the aircraft. For this we can setup a [[Lisa/M]] board. Collecting this data can be to a storage medium like on a micro SD card. Sometimes there is no need for real-time data collection through telemetry but just for storing a huge dataset.
* As a Camera controller
** On some models that do not require many servos (for example - flying wing with only 3 channels used), spare channels can be used for camera control. In addition, it could be used as an independent pan-tilt unit (PTU) controller.
* As a Airframe Tracker
** Tracking an airframe for an antenna or camera on a tripod is one of the many optional uses for a [[Lisa/M]] Board.
 
== Lia ==
 
Lia is a lower-cost variant of Lisa/M 2.0. The microcontroller, basic layout, servo outputs, and mounting holes are the same. Major differences:
* 0.1" through-hole connections for non-servo I/O instead of Molex picoblade
** PCB size increased slightly to (58x34mm) to accommodate throughholes
* CAN transceiver removed on initial units; populated on later units (see [http://paparazzi.enac.fr/wiki/Lia documentation])
* barometer removed
* I2C level shifter removed
* 5V voltage regulator removed
* Added provisions for multiple BEC input balancing on servo connectors
 
[[Image:Lia_1.1_top.jpg|360px|Lia v1.1 Top View]]
 
 
[[Lia|Lia documentation]]
 
== Lisa/S ==
 
Lisa/S is very small autopilot board. The focus for this design is size, weight and power consumption. It's an autopilot suited for the smallest airframes.
 
[[Image:Lisa_S_V0_1_r2_on_finger.jpg|360px]]
 
* [[Lisa/S|Lisa/S Documentation]]
 
 
[[Category:Lisa]] [[Category:User_Documentation]] [[Category:Autopilots]]

Latest revision as of 08:51, 7 January 2016

Lisa ( the Lost Illusions Serendipitous Autopilot) is a 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 the Lisa autopilots come in different styles for different uses.

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/S, a design focusing on size and weight.

Lisa/L

Description

Lisa/L is a dual processor board autopilot designed to allow for the possibility of using Linux for Paparazzi airborne code.

Lisa l bloc diag simple.png Lisa l top.png Lisa l bot.png

Documentation

The documentation for Lisa/L is broken into several parts due to board complexity and Gumstix Overo integration.

Lisa/M

Description

Lisa/M is a great general purpose small-footprint autopilot. There are currently two versions that have been produced. Detailed documentation can be found here:

Lisa/M v2.0 Top View


Lisa/M v1.0 Top View

Usage scenarios

There are many potential applications for the small, relatively inexpensive and flexible Lisa/M. For regular Autopilot boards a fully equip Lisa/M board is needed. For some scenarios just a basic Lisa/M without an IMU and barometric pressure sensor is needed, which reduces the board cost. Here are some ideas (not all have yet to be implemented):

  • As a basic Autopilot
    • To use the Lisa/M as an autopilot, you need to attach a GPS receiver. A nice uBlox LEA-5H or newer will perform great.
  • As an advanced Autopilot
    • Additional sensors for measuring airspeed, current, etc. would enhance a fixed-wing airframe.
  • As a servo extender
    • Sometimes being able to control seven actuators is just not enough. Large airframes may require flaps or an airbrake and automatic landing facilities. Maybe special ACL/Nav lights, or four cameras with zoom. By using a coupled second basic Lisa/M and connecting this to the master Autopilot board we can extend the amount of servos. Large airframes can also benefit from remote and/or redundant servo drivers.
  • As a Safety Pilot Device
    • To provide an extra safety level required in some UAS challenges. A second Lisa board can make it easy to adhere to the rules for such a challenge.
  • As a Data Logger
    • Maybe you have a need only to log all kinds of data, like temperature, volts, amps, height, airspeed, and not control the aircraft. For this we can setup a Lisa/M board. Collecting this data can be to a storage medium like on a micro SD card. Sometimes there is no need for real-time data collection through telemetry but just for storing a huge dataset.
  • As a Camera controller
    • On some models that do not require many servos (for example - flying wing with only 3 channels used), spare channels can be used for camera control. In addition, it could be used as an independent pan-tilt unit (PTU) controller.
  • As a Airframe Tracker
    • Tracking an airframe for an antenna or camera on a tripod is one of the many optional uses for a Lisa/M Board.

Lia

Lia is a lower-cost variant of Lisa/M 2.0. The microcontroller, basic layout, servo outputs, and mounting holes are the same. Major differences:

  • 0.1" through-hole connections for non-servo I/O instead of Molex picoblade
    • PCB size increased slightly to (58x34mm) to accommodate throughholes
  • CAN transceiver removed on initial units; populated on later units (see documentation)
  • barometer removed
  • I2C level shifter removed
  • 5V voltage regulator removed
  • Added provisions for multiple BEC input balancing on servo connectors

Lia v1.1 Top View


Lia documentation

Lisa/S

Lisa/S is very small autopilot board. The focus for this design is size, weight and power consumption. It's an autopilot suited for the smallest airframes.

Lisa S V0 1 r2 on finger.jpg