From: David Conger <address@hidden>
To: address@hidden
Sent: Fri, 5 November, 2010 5:00:06 AM
Subject: Re: [Paparazzi-devel] ArduIMU on Wiki
Awesome, thank you for clarifying. The Tiny211 I was not seeing GPS info but I was also indoors so I will try closer to a window. The TWOG I will connect a Paparazzi GPS to it.
Do you think the
delay in the GCS display for attitude is normal? I guess I'll soon find out. I'm trying hard to get this into a FunJet or Merlin. Prefer the Merlin but there is so little room in there.
-David
On Nov 3, 2010, at 10:59 PM, Martin Mueller wrote:
> Hi David,
>
> it is in (3) of
http://paparazzi.enac.fr/wiki/ArduIMU>
> "This Guide/Software is made to use the ArduIMU without separate GPS-Receiver and without Compass/Magnetometer. The GPS-Data is sent by the Tiny 2.11 over I2C to the IMU. "
>
> Martin
>
> On 04.11.2010 06:30, David Conger wrote:
>> All,
>>
>> Some more questions...and observations.
>>
>> What of the GPS? The ArduIMU has a connector for a GPS and the code in the AHRS uses GPS to do yaw corrections I believe. I have right now the GPS connected to the ArdduIMU
but do not see messages for GPS in the GCS.
>>
>> Are my observations correct that the ArduIMU is to be used without the GPS or do I need two GPS to fly with. One for ArduIMU and one for Paparazzi?
>>
>> I'll take a photo of my setup tomorrow. I have a YouTube video up of my current setup here:
http://www.youtube.com/watch?v=9EFXRy11O7k>>
>> It seems a bit slow. I'll be curious to see if this is not an issue in flight.
>>
>> -David
>> On Nov 2, 2010, at 9:16 AM, Martin Mueller wrote:
>>
>>> Hi David,
>>>
>>> with the Arduino debug plug pointing forward in flight and parts up the directions work ok for me. Maybe it is the earth horizon moving the other way than the aircraft?
>>>
>>> Martin
>>>
>>> On
02.11.2010 05:07, David Conger wrote:
>>>> Hi Martin,
>>>>
>>>> With your help I have a Tiny2.11 with an ArduIMU connected to the I2C port. I followed the Wiki and am using your airframe suggested with the exception that I also commented the ADC IR values and set the modem to transparent.
>>>>
>>>> Holding the IMU with the arrows on the IMU for X,Y,Z I see pitch in the PFD is shown correctly. However the roll is reversed. If this was an airframe with IR I would change the sign for: LATERAL_CORRECTION in the INFRARED section. As expected there is no INFRARED section. I sure could use a LATERAL_CORRECTION value to modify though :)
>>>>
>>>> Is there a way I do not see to reverse the roll? Before doing this I did upload the firmware in SVN for the arduIMU (as per the Wiki).
>>>>
>>>> BTW, very cool to see IMU data and
the PFD artificial horizon responding to the IMU movements. Thank you for all your help so far. I think I am close.
>>>>
>>>> -David
>>>> On Oct 30, 2010, at 11:26 PM, Martin Mueller wrote:
>>>>
>>>>> Hi David,
>>>>>
>>>>>> Thanks to the new notes I have a compiled airframe
>>>>>> I would like to try the ArduIMU and followed the steps from the Wiki. However there was no mention of this value:
>>>>>> <subsystem name="attitude" type="infrared"/>
>>>>>> ...and the IR_ values farther in..
>>>>>> Can someone help. If I do not have IR and am flying with ArduIMU what becomes of those values? Removing them all brings compile errors. Leaving them without any IR sensors won't cause
issues?
>>>>>> Would it be possible for someone who is flying with IMU to post their airframe to SVN or in a reply? vn100 or ArduIMU or even Booz IMU.
>>>>>
>>>>> you might try airframes/mm/fixed-wing/fw_ins_arduimu.xml. The infrared must be removed at the moment not to have two software parts update the estimator. Did you use settings/tuning_ins.xml as mentioned in (4)?
>>>>>
>>>>> Martin
>>>>>
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