Comment

Comment by Harry on June 17, 2012 at 6:35am

I took my plane out for some glide testing with the Ardupilot/IMU.  I found a hill and tossed it in manual and it was solid, needed some minor input.  I did that about 3 times and then the real test was in stabilize right from the toss and it was very solid.  I could hear the servos moving and yet I wasnt touching it, but it just looked solid.  I did have to nudge it as it kept the nose level and airspeed started to bleed which looked like a stall was coming.  I think this is expected in stabilize without a motor.  Time to get serious about building the motor mount and see how it does with power.

Comment by Dr Mike Black on June 15, 2012 at 12:16am

Hi Anwar,

Great to kbnow you are stucking with it.

ok GPS....this sounds a little odd, EM406 was rock solid (not very quick) but it worked well.

If you care to post your header, perhaps i can have a lok through it,

I still have a couple of 406's so can maybe replicate what youa re trying to do and see if there is anything glaringly wrong.

Also if you have a need, i have brand new Thermo optics, still in thier packs if you want to cross check the reliability of the ones you have.

SO post your setup, header file adn how you have it configured and i will attempt to help you guys.

Kind regards,

mike.

Comment by Anwar Ali Khan on June 15, 2012 at 12:10am

@Dr. Mile Black, Nice to be in contact after so long. I am planning to follow your setup but only after I succeed with my first UAV. My hardware combination is Board red 328 but without Shield, EM406 GPS, FMA XY but without Z sensor. I have not yet been able to lock the GPS, causing frustration. Would have left this activity long ago but Graham Dyre and particularly Harry is guiding me and this gives me a hope for success.

Comment by Anwar Ali Khan on June 14, 2012 at 11:53pm

@Harry, Yes sure, I have soldered the two jumper wires on the bottom of the board at the very beginnign but not GPS lock is indicated yet by the blue LED. Although the red LED on the GPS itself indicates a lock but its not yet in binary mode, so no use. In the same manual under the LED Display Behavior there is a Note mentioning that for programing the EM406 into binaty mode the bind plug or jumper has to be used once, but the pins on the Ardupilot to bind are not mentioned. However in the pictures it is D6 & GND for Shield but I am not using the Shield. In code 1.0 when the board was being used without a Sheld the binding pins were D6 & D7. I will try both at the weekend and let you know. If no success, I will try to bring it to binary mode using code 1.0.

Comment by Dr Mike Black on June 14, 2012 at 3:13pm

Hi all,

Its been nearly a year, wife, life, business and personall life getting in the way of doing this project. Illnes in this case was the cause, nearly killed me too..but hey here we are again! :)

I dont know if this helps anyone, but dug the AP Mk1's out the last few days and got them flying again.

If anyone needs any help, i have them flying and reliably (even though the 'remembering' curve was somewhat vertical once again)

After 6 flights, with mutiple WP's at varying heights, they are playing ball, and coming home (which is always good :) )

I think though there is tonnes of milage left these old girls yet.

My setups,

AP1 (red board)

IMU V2 & V3

Ublox

I do have MTK GPS's but not had a huge amount of succes on the Ardu1's, they seam (IMHO) way too easy to upset in terms of reception and dropouts.

Because all my Ublox's went flat i had to re-load the firmwares again (another vertical curve)

Anyway, I have data, setups, PID's, if anyone, needs any advice.

Kind regards,

Mike.

Comment by Harry on June 14, 2012 at 6:11am

Comment by Anwar Ali Khan on June 13, 2012 at 10:33pm

Dear all, Which two pins on the Ardupilot (328) should I use for bind plug (or field septup jumper) to put the EM406 GPS into binary mode with the code 2.7.1? Is it pin D6 & GND or D6 & D7? (I am not using the shield).

Harry this is what I understood from the manual but I am afraid that I will damage the board if I put the bind jumper on the wrong pins.

Comment by Harry on June 13, 2012 at 9:31am

Youre not in Sirf if youre seeing a bright LED.  Good Luck, keep messing with it.  It's all in the manual.

Comment by Anwar Ali Khan on June 13, 2012 at 3:35am

@Harry, Please read my previous two queries also. What I have come to know from the discussion that it is the GPS that should not be powered for a week or more so that when next time it is powered on by the Ardupilot it gets into SIRF mode. Am I wright? Thanks.

Comment by Anwar Ali Khan on June 13, 2012 at 1:25am

@Harry, In addition to my previous query, it is mentioned in the EM406 Product Guide about the LED on the GPS that:

LED ON: No fixed, Signal searching

LED Flashing: Position Fixed

So there is nothing wrong with the GPS and it gets fix within the minute?

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