Hardware fix for T8SG v2p voice + some other fixes

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28 Jan 2020 00:05 - 28 Jan 2020 00:08 #75830 by eried
Hi, I discovered that the problem with the voice in the T8SG v2 plus carbon is actually in the hardware itself. The PCB lacks two pulls up resistors so the people designing the remote did a small fuck up.

The problem is as kanamonoka user shows:


Here is how to fix it and how it works after the fix:


The fix looks like this:


Additionally, I soldered and straightened the antenna connector (because it always comes off):


Lubricated the gimbals (they made a faint squeaky sound) with www.tamiya.com/english/products/87099grease_hg/index.htm (perfect for plastic to plastic)


Printed a plan cover for the back:
www.thingiverse.com/thing:1259444

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Last edit: 28 Jan 2020 00:08 by eried.

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28 Jan 2020 08:27 #75832 by Ryou
Thanks for the great information.
I will take measures.

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28 Jan 2020 09:05 #75833 by eried
Great! It would be nice to find a way also to add another USB mode that connects the D+ and D- of the MP3 chip directly to the main usb :D maybe for pcb V4 :P

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28 Jan 2020 09:53 #75834 by Ryou
Wiring 47k ohms solved problem ①.
Thank you.

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05 Mar 2020 05:12 #76003 by sansjunk
@eried you had mentioned about fixing the voice queuing issue. Is this fix in the build yet?

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05 Mar 2020 18:48 #76018 by eried

sansjunk wrote: @eried you had mentioned about fixing the voice queuing issue. Is this fix in the build yet?


No, there is a small discussion about my implementation. You can join the discussion here:
github.com/DeviationTX/deviation/pull/961

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09 Mar 2020 11:57 #76057 by sansjunk

eried wrote: No, there is a small discussion about my implementation. You can join the discussion here:
github.com/DeviationTX/deviation/pull/961

Thanks. I don't have anything valuable to add there. Just a thought I had was that we can look at how other voice supported TX behave and may be get some ideas from there.

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09 Mar 2020 13:42 #76058 by eried
Well, basically I like voices being skipped, i.e. in the middle of a sound if you trigger another sound and TheRealMoeder does not. So I need to refactor it in a way that is flexible for both

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11 Apr 2020 20:08 #76179 by Enrique33
Hi eried. I'm fixing the hardware issue with your solution, thank you for your knowledge. Have you got a specific range for the two resistance we have to solder please?

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12 Apr 2020 07:49 #76180 by eried
Any will do but between 1k and 40k might be the best. The recommendation from the manufacturer is the one I used

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13 Apr 2020 01:15 #76182 by Enrique33
Thank you for quick answer

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