#neo900 on 2018-04-22 — irc logs at freenode.irclog.whitequark.org

2018-03-03 10:58 Joerg-Neo900 changed the topic of #neo900 to: http://neo900.org | CCCAMP15 lightning talks at http://neo900.org/stuff/cccamp15/ - major: http://neo900.org/stuff/cccamp15/ccc2015talk/neo900-wpwrak_CCC2015.webm | conversations are logged to http://infobot.rikers.org/%23neo900/ and http://irclog.whitequark.org/neo900 | Latest news: http://neo900.org/news/joerg-pia-2018-03-01

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20:48 <DocScrutinizer05> enyc: alas this came to a hold, for quite unexpected reasons and completely unclear perspective. Might continue next week or be a red herring all together

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20:52 <enyc> DocScrutinizer05: ;-( be nice to know whats going on hehe

20:53 <DocScrutinizer05> since I've put more debit on my already massively overdrawn individual health account to push this "jump ahead thing" as long as it was urgent and active, I'm now on a 2 weeks of health recovery mode. Alas it turns out 2 weeks are way too short to really restore my health I ruined during the last 3 years

20:54 <DocScrutinizer05> (know what's going on) a pity I must not talk about details

20:55 <enyc> fair enoughs

20:55 <DocScrutinizer05> I still hope this will revive eventually and mature to a state where I may announce something

20:55 <enyc> good luck

20:56 <enyc> hows' houkime hgetting on with layout?

20:56 <DocScrutinizer05> but for now I'm wasted, busted, at a medical and mental dead end

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20:57 <DocScrutinizer05> for houkime layout, please ask houkime. I don't even have the application to open his stuff right now

20:58 <DocScrutinizer05> maybe he can provide screenshots or somesuch

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21:11 <houkime> About layout: Looks like it is possible to do things without a connector in the neck at the cost of one esd being moved to LOWER.

21:11 <houkime> Hall detector also fits if the HB is moved lower

21:12 <houkime> which is sort of possible however it is hard to predict the end usability.

21:13 <houkime> I was a little bit carried away recently though because I kind of need to evacuate from country.

21:14 <DocScrutinizer05> "HB moved lower"? what exactly do you mean by this?

21:14 <houkime> Sorry, not lower, "south", away from neck

21:15 <DocScrutinizer05> hackerbus connector position is fixed, it can't move

21:16 <DocScrutinizer05> at least I'm not aware of a reasonable option to move it to any other position than the one described in hb.pdf

21:17 <atk> now comes the impossible task of putting two things in the same place

21:17 <atk> solved many times before by many an engineer

21:18 <DocScrutinizer05> hmm?

21:19 <DocScrutinizer05> http://neo900.org/stuff/papers/hb.pdf p.7

21:19 <DocScrutinizer05> and p.8

21:21 <DocScrutinizer05> the distance from memory card holder is defined by the plastic shroud(?) of a possible HB plug connecting to the HB jack

21:21 <houkime> No, joerg, I move HB parralel to sd holder

21:22 <DocScrutinizer05> this is limited by case IIRC

21:22 <DocScrutinizer05> you need to cut out case to access the HB jack, and you can do this only on a few locations, at least reasonably

21:23 <houkime> I have measured case scans many times

21:23 <houkime> old and new place are eaquivalent

21:25 <houkime> They both requre cuts in plastic, but away from metal

21:25 <DocScrutinizer05> LTE and thus my VNC going down here, lightning storm (though no idea why and how this is related). BBL, maybe tomorrow

21:26 <houkime> ok then

21:27 <DocScrutinizer51> houkime: you need a real N900 for reference, let me know whan and where you could receive a parcel

21:29 <DocScrutinizer51> ~ping

21:29 <infobot> ~pong

21:38 <houkime> In the original there are two plastic shrouds that need to be taken into account. One is the postament between LOWER and BOB

21:39 <houkime> and the second one is the cover which shrouds both LOWER and BOB

21:39 <houkime> with orifice for SD card and such.

21:40 <houkime> As I understood, there will be no postament in neo900

21:40 <houkime> And mechanical coupling between LOWER and BOB will be done via 2 connectors.

21:42 <houkime> the shroud with an sd holder orifice doe snot allow for HB in vanilla and this orifice should be extended.

21:42 <houkime> the limiter for this extention is the edge of a metal battery holder thing

21:43 <houkime> which is simultaneously the limiter for BOB as a whole

21:45 <houkime> we can't cut this edge because this edge is there for coupling between metal and plastic parts of a shroud.

21:47 <houkime> it separates BOB from the part where plastic fingers are going through metal holes

21:47 <houkime> and keeping the thing together.

21:48 <houkime> When I extended the BOB I kept 0.3 mm from this edge.

21:50 <houkime> So as long as HB doesn't conflict with BOB edges everything should be fine. You will still need to cut a hole in the plastic, but that's it.

21:55 <houkime> https://neo900.org/git/scans/plain/pics/large/n900-bottom-inside-top.jpg

21:55 <houkime> this is the shroud that has an sd holder orifice in the bottom left

21:56 <houkime> to the right of the sd orifice is the metal edge.

21:56 <houkime> between this orifice and metal edge is the plastic field which has a recycling triangle on one of its sections.

21:57 <houkime> This plactic ares will be cut to shape to accomodate hb

21:57 <houkime> *plastic area

21:59 <houkime> it will retain around 0.3+1.2=1.5 mm of its width.

22:04 <houkime> the whole width of it is around 5.7 mm.

22:09 <houkime> This is a postament thing. https://neo900.org/git/scans/plain/pics/large/n900-daughter-bottom.jpg

22:10 <houkime> And as far as I can reasonably suggest from dialogs with joerg this cannot be and won't be included in neo900.

22:11 <houkime> in the original postament holds bob in place, because bob is connected only by flex-pcb in vanilla

22:14 <houkime> also there's no indication of it in stacking in hb.pdf, so I assume it is not included.

22:15 <houkime> I can't realistically see any other constraints on bob.

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22:23 <houkime> however there might be some constraints on hb based on usability requirement and ergonomics of it as a connector. This is a little bit hard to tackle since userboards are arbitrary.

22:24 <houkime> For example that plastic thing the will be cut is elevated above bob

22:25 <houkime> This obviously sets constraints on the male hackerbus connector, because it will need to elevate userboard above the plastic is the shroud is not removed.

22:26 <houkime> *if the shroud

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22:37 <houkime> The biggest problem with bob is esd protection right now. One additional concern of mine is that since neo900 is a tinkerphone, user can remove and plug bob back.

22:38 <houkime> and he does it obviously in unprotected environment.

22:45 <houkime> and also he might plug his userboard into bob while it is disconnected from LOWER.

22:45 <houkime> Aaand in any case it will be bad if sth fries

22:48 <houkime> You won't believe how my head is driving me crazy right now because of these things.

23:27 <houkime> gonna sleep.

23:29 <DocScrutinizer51> good night :)

23:32 <DocScrutinizer51> off topic: witnessed a nice mega lightning thunderbolt here, was like 3km distance and still made the windows vibrate and rumble

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23:32 <Sveta2> i suppose it destroyed something

23:32 <DocScrutinizer51> prolly

23:33 <DocScrutinizer51> sounded like a bomb

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