|
| From: | Jochen Rieger |
| Subject: | Re: [Paparazzi-devel] Question about paparazzi and fixed wing autopilot system |
| Date: | Tue, 4 Oct 2011 08:06:29 +0200 |
Any special reason to use the (expensive) XSens? And with the MTi-G there is already a GPS. Using the normal XSens MTi with an external GPS requires a tiny bit of coding. Please note xsens has RS232 level serial port. That fits directly to yapa but for others you need a level converter.
>>>>>> **On Sep 29, 2011 10:16 PM, "Jochen Rieger" <address@hidden> wrote:
> Ah ok thank you very much. Then I need an PPM-encoder.
>
> I think my system will be this:
>
> Twog
> Xsense IMU
> Paparazzi GPS1.3
> Xbee 868Mhz perhaps an Wi.232EUR-R
>
> I hope it works :)
>
> Best regards.
> Jochen
>
>
> 2011/9/29 Christophe De Wagter <address@hidden>
>
>> Dear Jochem,
>>
>> Internally in all old FM receivers ALL the servo signals were first
>> combined in 1 single line, called the "summed signal" or "combined pulse".
>> This is ideal for autopilots because then only 1 signal wire is needed
>> (+ground+power) to the autopilot for ALL servos that your transmitter sends.
>>
>> There exits several receivers that provide this "combined signal" on some
>> pin (not a normal servo pin). Otherwise you need to either open your 35MHz
>> FM receiver and find this combined pulse or (with modern 2.4GHz) add a
>> PPM-encoder board that will read all your 7+ servo channels with 7+ wires to
>> your receiver and then give all together with 1 plug (3
>> wires:signal-power-ground) to the autopilots. Lisa/Twog/Yapa/Tiny are all
>> the same with this respect.
>>
>>
>> -Christophe
>>
>>
>>
>>
>> On Thu, Sep 29, 2011 at 8:54 PM, Jochen Rieger <address@hidden>wrote:
>>
>>> Hmm ok, but that receiver has 7 output channels each for one servo, but
>>> which channel do you connect with the Twog?
>>>
>>> 2011/9/29 Helge Walle <address@hidden>
>>>
>>>> Hi Jochen,
>>>>
>>>> I use this rc receiver which I connect directly to the ppm port on my
>>>> TWOG. No modifications needed.
>>>> http://sklep.rcconcept.pl/lang-en/aparatury-i-odbiorniki/84-r6107sp.html
>>>>
>>>> My TX is a Futaba 10CG, but it seems the receiver should work with your
>>>> TX as well.
>>>>
>>>> Yapa, Tiny and Twog should be the same in this respect.
>>>>
>>>> Helge.
>>>>
>>>>
>>>>
>>>>
>>>> 2011/9/29 Jochen Rieger <address@hidden>
>>>>
>>>>> Thank you very much, these information are very helpfully.
>>>>> But i have additional questions now.
>>>>>
>>>>> At Lisa/L, is it right that i need an encoder between servo output of
>>>>> rc-receiver and board?
>>>>>
>>>>> And at Yapa i dont understand how the rc control work. How can i connect
>>>>> the rc receiver with the board?
>>>>> Do i must modifie the receiver like at Tiny and Twog?(FM signal directly
>>>>> to board)
>>>>>
>>>>> Best regards.
>>>>> Jochen
>>>>>
>>>>>
>>>>> 2011/9/29 Prof. Dr.-Ing. Heinrich Warmers <address@hidden>
>>>>>
>>>>>> ------------------------------
>>>>>> Dear Jochen Rieger,
>>>>>> when you want low cost and a flexible solution you can use the Tworg, a
>>>>>> GPS for about 30 Euros, and a low cost imu (Razor) Spakrefun (analogue or
>>>>>> digital with i2c 60Euro) or
>>>>>> the new mini autopilot with the lpc2148.
>>>>>> For telemetry the xbeepro is a good solution.
>>>>>> This system needs a reset all 5 minutes.
>>>>>> The yapa (90$) has a interface for it on board.
>>>>>> The 868MHz band will become illegal in same EU states in 2013.
>>>>>> The LPC2148 autopilots needs a rc sum impulse signal.
>>>>>> The advantage for the lpc2148 is that you need only a usb wire. For the
>>>>>> stm32 there is currently no boot loader.
>>>>>> So you need the fossel JTAG (60$) adapter to flash.
>>>>>> In my opinion for 2.4Mhz only the graupner Hot and a jeti update set (
>>>>>> mikrokopter.de) has impulse interface direct available.
>>>>>> The STM32 autopilots can direct deal with uart signals for the rc
>>>>>> interface like spectrum satellite receivers.
>>>>>> To chance way points, when flying, is no problem.
>>>>>>
>>>>>> Regards
>>>>>> Heinrich Warmers
>>>>>>
>>>>>> Jochen Rieger schrieb:
>>>>>>
>>>>>> Hello paparazzi community,
>>>>>>
>>>>>> I am new in the world of autopilots and I have some questions.
>>>>>>
>>>>>> -I could read in the software wish list that it is impossible to change
>>>>>> individual waypoints while flying.
>>>>>> Will be this available in near future?
>>>>>>
>>>>>>
>>>>>> -I plan a fixed wing with autopilot with following configurations:
>>>>>>
>>>>>> Platform: Maja, two ailerons, two elevators, one rudder
>>>>>> RC-System: Futaba T6EXP FASST 7-channel
>>>>>> Camera live downlink
>>>>>> Fully telemetrie, include up-/downlink
>>>>>>
>>>>>> Now i need the right autopilot, and there is my question. Which one is
>>>>>> the most reliable? It should have an IMU, and of course work with the
>>>>>> rc-equipment.
>>>>>>
>>>>>> I thought about
>>>>>>
>>>>>> Tiny v2 + Xsense or antoher IMU?
>>>>>> Lisa/L + Aspirin IMU or Booz?
>>>>>> Twog + which IMU?
>>>>>>
>>>>>>
>>>>>> What do you think about these? What are the dis-/advantages?
>>>>>>
>>>>>> I hope you can help me.
>>>>>>
>>>>>> Best regards.
>>>>>> Jonny
>>>>>>
>>>>>>
>>>>>>
>>>>>>
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>>>>>>
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