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 8: Line 10:
*Lisa/S, a design focusing on size and weight.
*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 [[Lisa/L]] 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


= Lisa/M =
== Lisa/M ==


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


[http://paparazzi.enac.fr/wiki/Lisa/M A special page is dedicated to the Lisa/M yu can find it by clicking on this line]
[[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]]


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


== Documentation ==


Lisa/M is only at the stage of prototype. More [http://paparazzi.enac.fr/wiki/User/LisaM Documentation can be found here]. The documentation will be extended over time. It would be great to add more documentation yourself if you already have experience with this board of if you even made one yourself.
* [[Lisa/M_v1.0|Lisa/M v1.0 Documentation]]


= 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 compared to the Lisa/L, the S is the lower board.


[[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):


= Where to get it =
* 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.


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


[[Category:Hardware]]
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