Re: [Paparazzi-devel] Rotorcraft Mixing Values for an Octocopter

[Felix Ruess]

See http://paparazzi.enac.fr/wiki/Subsystem/actuators#MKK

On Thu, Dec 8, 2011 at 3:05 PM, Simon Wilks <address@hidden> wrote:
> Hi Eduardo,
>
> As expected, I had the same problem with one of the eight motors not
> starting up with the Lisa/L. The solution you proposed fixed it. So it was
> nothing specific to your setup.
>
> Thanks very much!
>
> Simon
>
>
> On Mon, Dec 5, 2011 at 6:21 PM, Eduardo lavratti <address@hidden>
> wrote:
>>
>> Simon,
>> if you have problem with motor tell me .
>> I make a modification and solved the problem.
>>
>> i need know if it is a issue with my esc or with all i2c escs.
>>
>> ________________________________
>> Date: Mon, 5 Dec 2011 10:29:10 +0100
>> From: address@hidden
>> To: address@hidden
>> Subject: Re: [Paparazzi-devel] Rotorcraft Mixing Values for an Octocopter
>>
>>
>> Hi Eduardo,
>>
>> Thanks! I will give that a try.
>>
>> I have almost finished assembling everything. I have wired up two motors
>> and just need to solder the other six. I am using MKK controllers and a
>> Lisa/L board.
>>
>> I am expecting I am going to have a problem getting all motors started as
>> I have a Lisa/L like you but I hope to be able to be at the point of testing
>> the motors tonight or tomorrow night.
>>
>> Thanks
>>
>> Simon
>>
>> On Mon, Dec 5, 2011 at 3:36 AM, Eduardo lavratti <address@hidden>
>> wrote:
>>
>> Simon,
>> use this values for your airframe.
>> I am not sure about yaw signals.
>> If you have problem change the signals @ yaw line.
>>
>> have you assembled you aircraft ? all motors start ?
>> What kind of esc are you using ? i think you using MK esc right ?
>>
>>   <section name="ACTUATORS_MKK" prefix="ACTUATORS_MKK_">
>>     <define name="NB" value="8"/>
>>     <define name="ADDR" value="{ 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e,
>> 0x60 }"/>
>>   </section>
>>
>>    <section name="SUPERVISION" prefix="SUPERVISION_">
>>     <define name="MIN_MOTOR" value="11"/>
>>     <define name="MAX_MOTOR" value="220"/>
>>     <define name="TRIM_A" value="0"/>
>>     <define name="TRIM_E" value="0"/>
>>     <define name="TRIM_R" value="0"/>
>>     <define name="NB_MOTOR" value="8"/>
>>     <define name="SCALE" value="256"/>
>>     <define name="ROLL_COEF"  value="{ 256, -256, -256, -256, -256,  256,
>> 256,  256 }"/>
>>     <define name="PITCH_COEF" value="{  256,  256,  256, -256, -256, -256,
>> -256,  256 }"/>
>>     <define name="YAW_COEF"   value="{ -256,  256, -256,  256, -256,  256,
>> -256,  256 }"/>
>>     <define name="THRUST_COEF" value="{ 256,  256,  256,  256,  256,
>> 256,  256,  256 }"/>
>>   </section>
>>
>>
>> regards
>>
>>
>>
>>
>>
>> ________________________________
>> Date: Sun, 4 Dec 2011 21:56:32 +0100
>> From: address@hidden
>> To: address@hidden
>> Subject: [Paparazzi-devel] Rotorcraft Mixing Values for an Octocopter
>>
>>
>> Hi
>>
>> I am having some trouble working out how calculate the roll/pitch/yaw
>> coefficients for an octocopter. I have been following
>> the http://paparazzi.enac.fr/wiki/RotorcraftMixing guide but I am not
>> getting it (btw, I think the x,y axis labels in the diagram need to be
>> swapped).
>>
>> Given that the octo is configured as indicated in the attached image, what
>> values should I be using for the A matrix? All arms are of identical length.
>>
>> Thanks,
>>
>> Simon
>>
>>
>>
>> _______________________________________________ Paparazzi-devel mailing
>> list address@hidden
>> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>>
>> _______________________________________________
>> Paparazzi-devel mailing list
>> address@hidden
>> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>>
>>
>>
>> _______________________________________________ Paparazzi-devel mailing
>> list address@hidden
>> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>>
>> _______________________________________________
>> Paparazzi-devel mailing list
>> address@hidden
>> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>>
>
>
> _______________________________________________
> Paparazzi-devel mailing list
> address@hidden
> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>