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Old Dec 23, 2012, 05:46 AM
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Almost done, but I have to alter the development due to instability in opendiyAT software/hardware, which lead me to invest the time available in to opendiyAT.
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Old Dec 23, 2012, 01:24 PM
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Originally Posted by jalves View Post
Almost done, but I have to alter the development due to instability in opendiyAT software/hardware, which lead me to invest the time available in to opendiyAT.
Thanks for the report!
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Old Dec 23, 2012, 03:49 PM
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@Grzechu

I would like to know what you did to invert or get a usable audio link with your Video tx/rx for opendiyAT.

Can you share the details with us?
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Old Dec 27, 2012, 05:57 AM
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Yes of course, I was in home on Christmas, today I back.

Today or tommorow I'll show pictures and schematic
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Old Dec 27, 2012, 06:23 AM
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Ok, we are waiting...
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Old Dec 27, 2012, 09:21 AM
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Can I use it?

http://www.robotistan.com/Arduino-Micro,PR-1380.html (memory is enough?)
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Old Dec 27, 2012, 09:32 AM
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I can't say for sure, but I think it is usable.
Can someone else confirm this?
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Old Dec 27, 2012, 12:15 PM
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Atmega32U4 is pretty much an updated version of the Atmega328.

It have some extra timer functions, USB-support and better support for hardware PWM and a few other things.

You need to check the timer-registers etc. as they might be a bit different on the Atmega32U4.

So if you don't mind to change the register settings etc. it should be fine, otherwise pick one with Atmega328
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Old Dec 27, 2012, 02:03 PM
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Originally Posted by jalves View Post
Almost done, but I have to alter the development due to instability in opendiyAT software/hardware, which lead me to invest the time available in to opendiyAT.
So have you found the "bugs" which caused instability? How was this instability seen in practice?
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Old Dec 27, 2012, 03:36 PM
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Well, in accordance with my last tests (today went to the field and the tracker failed completely ) the problem was the 2nd batch of LM1881 chips I bought, they are unstable and change the bits from the right line to one or two lines above or below the pretended line.

Of course, the arduino Rx can not find any bits in the line it seeks for...

Tomorrow will try again in the rc field, but this time with the lm1881 chips from the batch#1.

Dennis, this could also explain why there are so many problems with the lm1881 version of opendiyosd.

I did change the Rset of the N(ational) Lm1881 without any good results.
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Old Dec 27, 2012, 09:57 PM
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considering the AAT prices, I was looking for some DYI project and found it. What i like is you are working in both RX/TX using cheap arduino, after read all posts i can see the evolution.

I can not understand what is the deal using video or audio, I mean both are signals using the same equipment video transmitter, the error checking makes the difference when using the audio.

I have dragonOSD i read that video has telemetry already, however after years no development in this matter so It will be great use this one and use the power for directional antennas. Thanks for sharing..
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Old Dec 27, 2012, 10:11 PM
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jalves, would you please share some pics for mechanical part? what servos are you using? thanks a lot,
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Old Dec 28, 2012, 03:21 AM
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aquintero,

One winch servo for PAN and a regular Futaba or equivalent 60g for TILT.
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Old Dec 28, 2012, 01:10 PM
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Jalves so was the other batch of lm1881's better?
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Old Dec 28, 2012, 01:13 PM
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Quote:
Originally Posted by jalves View Post
Dennis, this could also explain why there are so many problems with the lm1881 version of opendiyosd.
So many problems with the LM1881 version? I haven't really noticed any problems posted regarding the LM1881, but I must admit that I've been kinda busy lately and only been around now and then...
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