Re: [Paparazzi-devel] Low cost autopilots for paparazzi

[Piotr Esden-Tempski]

Hi,

That is not very much space. For example Lisa/M example airframe file generates 
a binary of ~150kb. So you would need to disable some stuff to squeeze in the 
firmware.

Cheers,
Piotr

On Aug 14, 2014, at 17:47, Marius Pfeffer <address@hidden> wrote:

> Hello
> 
> The Naze32 is available at Hobbyking:
> http://hobbyking.com/hobbyking/store/__55819__AfroFlight_Naze32_Acro_AbuseMark_FunFly_Controller.html
> 
> 19€, with MPU60x0, without mag and preasure sensor, cheap as hell....
> 
> STM32F103CB has only 128 Kbytes memory and I think he is connected with a 
> silabs cp2102 with USB, but there is a swd header...
> 
> Best Regards 
> Marius/Neo
> 
> 
> 
> 2013-08-03 12:48 GMT+02:00 Prof. Dr.-Ing. Heinrich Warmers <address@hidden>:
> Thanks for the link  Marius.
> 
> Marius Pfeffer schrieb:
> 
>> Sorry, forgott the link:
>> 
>> http://www.mikrocontroller.net/topic/299315
>> 
>> -Marius
>> 
>> Am 02.08.2013 22:45 schrieb "Hector Garcia de Marina" <address@hidden>:
>> Be aware of that cheap hardware also comes with its major drawbacks such as 
>> power, noise and malfunction due to temperature issues.
>> 
>> Having a good designed board is not only for fun. As an example I remember 
>> the case of one autopilot (for a boat) employing a low cost board, the 
>> magnetometer (from Honeywell HMC series) employed as a pump capacitor a 
>> cheap tantalum one.
>> Well, that capacitor had a high resistor series under low temperatures 
>> (below 5 degrees). All the test were in summer, so everything was ok. In 
>> winter, because of that issue, the magnetometer started to ruin the I2C 
>> communication (the chip hanged without freeing the bus) and they lost the 
>> boat (fortunately they could recover it). Imagine what would happen in an 
>> airplane.
>> 
>> Even for hobby, a flying machine takes a lot of time (we all know this :P) 
>> and it is really annoying to see one crash because cheap hardware. Besides 
>> for mass production, I would say it is really worthy to spend 50 or 100€ 
>> more in a well tested 
>> board. After all, in my opinion, if you can afford to have a quadrotor or an 
>> airplane and its maintenance, you should go for relative good hardware.
>> 
>> 
>> 
>> 
>> On Fri, Aug 2, 2013 at 10:21 AM, Felix Ruess <address@hidden> wrote:
>> Hi Heinrich.
>> 
>> "All" you need to do is write a new board makefile in conf/boards and a new 
>> board header file in sw/airborne/boards containing the pin mapping you wish. 
>> You can use the Lisa m ones as example and starting point.
>> 
>> Cheers, Felix
>> 
>> On Aug 2, 2013 10:09 AM, "Michel GORRAZ" <address@hidden> wrote:
>> The construction  of a prototype by hand need about 40h.
>> 
>> 40h ?!?!? for one board ???
>> You should order new hands :)
>> 
>> Kidding aside, i'm not sure to get your message : if you want to port pprz 
>> on "cheap" hardware, ok, " just do it", but don't confuse people with bad 
>> numbers.
>> I think having companies taking the risk building the hardware that is 
>> perfectly matching our needs is a real chance...
>> 
>> 
>> Michel
>> 
>> 
>> 
>> 
>> 
>> 2013/8/2 Prof. Dr.-Ing. Heinrich Warmers <address@hidden>
>> Hi Michal,
>> a problem with the Paparazzi project  is that the hardware is expensive by 
>> the low count  of  units  for example for  many students and hobbyists.
>> The special hardware like Krooz, Apogee etc. is good but not available in 
>> many countries or shops and make also
>> a determination between mutirotor or normal wings aircraft
>> For example the production  of our one autopilot HBmini  the self cost of  
>> manufacturing  a set of 10 units is about 2500 Euros. 
>> The fix cost of a production run is about 1000 Euros in Germany .
>> The construction  of a prototype by hand need about 40h.
>> 
>> The second idea is to use the same cheap hardware for simple software like  
>> MultiWii and a more complex like Paparazzi.
>> This gives the chance that a hobbyists starts with the simple software and 
>> can chance to Paparazzi to a second without new hardware.
>> The work for the implementation is only  the addition of  a new make system 
>> and directories.
>> 
>> Regards
>> 
>> Heinrich
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> Michal Podhradsky schrieb:
>>> Hello Heinrich,
>>> 
>>> do I understand correctly that you want to port paparazzi onto an existing 
>>> hardware? I noticed that recently lot of new APs came out (Krooz, Apogee) 
>>> and the community is working on those. Just a suggestion - maybe it would 
>>> be better to first finish and properly test those boards (so they can be 
>>> considered airworthy) before moving to new hardware (which should be way 
>>> easier with proven drivers)?
>>> 
>>> With kind regards
>>> Michal
>>> 
>>> 
>>> On Thu, Aug 1, 2013 at 4:21 PM, limaiem imed <address@hidden> wrote:
>>> Hello,
>>> 
>>> why not,
>>> 
>>> I can help with 3hours a week. 
>>> 
>>> But you need to split the job ...
>>> 
>>> regards, 
>>> 
>>> Imed LIMAIEM
>>> address@hidden
>>> 
>>> 
>>> On Thu, Aug 1, 2013 at 12:38 PM, Prof. Dr.-Ing. Heinrich Warmers 
>>> <address@hidden> wrote:
>>> Hi,
>>> i want to start a discussion for low cost STM3 autopilots to use with 
>>> paparazzi
>>> I have flown a low cost Multikopter  with the following autopilot with the 
>>> STM32f103 (M3 with 48 pins 128kB EPROM 20kB RAM):
>>> 
>>>  http://flyduino.net/Multikopter-FC_2  cost  47 Euro compatible with
>>>  
>>> http://abusemark.com/store/index.php?main_page=product_info&products_id=30  
>>> (cost 49,50 Euro) compatible with
>>>  
>>> http://abusemark.com/store/index.php?main_page=product_info&products_id=45  
>>> ( Cost 18,50 Euro without magnet and baron sensor).
>>> 
>>> The multirotor has the same performance, like my paparazzi multirotor.
>>> The software is a 32-bit MultiWii port.
>>> The hardware is full Paparazzi computable. 
>>> The board has a USB connection and sensors of the sate of the art.
>>> 
>>> It seems to be simple to port paparazzi on this hardware. The only 
>>> restriction is the 128KB EPROM space.
>>> 
>>> Is same one of the Paparazzi team willing to work with me to port paparazzi 
>>> on this hardware? 
>>> 
>>> Next time STM offer a processor with 265KB EPROM and 64 KB RAM in the same 
>>> housing with the f4 CPU (floating point unit, cost about 10 Euros).
>>> 
>>> I am locking for answers
>>> 
>>> Heinrich
>>> 
>>> 
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>> 
>> -- 
>> Héctor
>> Webpage: http://mathtronics.wordpress.com/
>> 
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