Research and development of open-source UAV systems since 2003
We will be showing off some of our hardware at the O’Reilly Open Source Convention 2015 (OSCON). The event is happening on July 20–24, 2015 in Portland, Oregon USA.
Piotr Esden-Tempski from 1BitSquared together with Rich Burton from Hooperfly will be bringing some of their Paparazzi UAV based creations to show off. If you are attending OSCON find us in the exhibition hall for the hardware showcase and say “Hi”. We would love to meet some fellow Paparazzians.
Hello everyone,
After many months of hard work we have finally reached a version of Lisa/M that is ready for a wider range of developers. Although there are still some things missing that would allow a beginning user to use it with ease, we decided it is better to provide it to all of the other brilliant non core developers and users. You can find out more about it in the Paparazzi Wiki. A big thanks go to OpenUAS for his great help with the documentation.
Lisa/M Bottom
As promised, we want to talk about projects we are currently working on. One of them is Lisa/M.
Lisa/M will be the medium sized Autopilot based on the STM32 Cortex-M3 microcontroller. It is part of the Lisa series of Autopilots. It is very small (50mm x 25mm), about the size of an RC receiver. We want it to be as affordable as possible so that more people can join the autonomous aircraft revolution. The final cost still needs to be determined, as we are not done with the development yet.
Paparazzi features adaptive control loops that can cope with substantial “changes” of the airframe in flight. May it be a motor dropout, partial loss of control surfaces or dropping a heavy payload. As videos usually say more than words, here are two that demonstrate this.
The first video shows Paparazzi’s adaptive control loops (written by Pascal Brisset and Gautier Hattenberger at ENAC) for fixedwing aircraft keeping a Multiplex Twinstar on track, despite dropping a portion of the right wing and aileron and then switching the right motor off.
Many Paparazzi followers will be familiar with the popular TINY and TWOG fixed wing autopilot boards that have allowed so many UAV pilots their first taste of autonomous flight. A few will even have had the pleasure of using the Booz multicopter autopilot board. All three of these designs are based on the Phillips LPC2148 microcontroller, which has proven to be a solid performer in this role. Antoine Drouin, the genius behind the Booz board, has once again outdone himself with a completely new series of autopilot boards based on the STM32 ARM Cortex-M3 microcontroller, which has the umbrella name Lisa. The first available is the Lisa/L and it is this board that will be explored in coming articles.