11:01 <Joerg-Neo900> houkime: interesting find about hackerbus conector and cover detect hall switch conflicting

11:02 <Joerg-Neo900> I can't check right now, but I guess we considered that some way when we defined HB

11:05 <houkime> rechecking hb.pdf Nope. You considered only camera cover sensor it looks like.

11:07 <houkime> joerg-neo900: I guess it is possible to make some space for it but it will likely be offset. Don't know magnetic fields parameters to calculate tolerance.

11:10 <Joerg-Neo900> it depends on the hall sensor component but is not very wide. Andway two people reviewed the design and we gave some toughts to the hall sensor for cover detection, but I can't check details right now

11:12 <houkime> where can i find these reviews? hb.pdf contains nothing. Also it calls camera lid detector a hall detector, but in our design it is an IR proximity sensor.

11:12 <Joerg-Neo900> are you sure the hall sensor collides with the drills for HB?

11:12 <Joerg-Neo900> find reviews?

11:13 <houkime> ok. let me check this once again. Sec.

11:13 <Joerg-Neo900> the hb.pdf is the result from two people reviewing and discussing the design

11:13 <houkime> yes it is conflicting. It is standing right where hb drills are supposed to be.

11:14 <houkime> next to sd holder

11:14 <houkime> at least according to cvt-v1

11:14 <Joerg-Neo900> I mean, the HB conn is 1.27mm spacing, right? so the drills are max 0.9mm diameter, prolly less. The halls sensor can get offset from ideal position a 0.9mm and still will work

11:15 <Joerg-Neo900> the magnet in lid is like 4mm wide

11:15 <Joerg-Neo900> and 2mm high

11:15 <houkime> do you have scans of the lid?

11:16 <Joerg-Neo900> I don't know

11:16 <houkime> If I know where exactly this magnet is mb it is possible to find an ok space.

11:22 <Joerg-Neo900> it is exactly where the hall sensor is located on original N900 'BOB'

11:23 <houkime> ok

11:23 <Joerg-Neo900> see the very precise highres N900 PCBA scans

11:23 <Joerg-Neo900> we considered this situation when we designed that stuff

11:23 <Joerg-Neo900> it's not like we forgot about the hall switch when we invented HB

11:24 <Joerg-Neo900> werner and I prolly discussed it two days back when

11:29 <Joerg-Neo900> and the rationale is we replace the uSD-card umount funvtion by the card holder switch but we want to keep the hall sensor for lid just for good measure and may trigger other action like a popup menu "suspend to disk, to enable battery swap?" or somesuch, when detecting battery lid removal. And the privacy LED is meant to give feedback about the s2d progress in such situation. Camera door reflective sensor can get used a HID input, covering it

11:29 <Joerg-Neo900> with finger is like a keypress, to e.g. trigger s2d after removing lid and privacy LED goes from red flashing to yellow flasshing when detecting "key press" and then goes off when s2d completed so user knows it's safe to swap battery

11:33 <Joerg-Neo900> or privacy LED starts red flashing when removing battery lid, until it completed `sync` to flush SD-card buffers, then LED turns green to signal "safe to remove SD card". When you trigger suspend2disk by covering cam door sensor with finger, LED starts flashing yellow until s2d complete

11:35 <Joerg-Neo900> when your system has swap on SD-card, the time span until LED redflashing->green may be quite a few dozen seconds

11:37 <Joerg-Neo900> note that hall switch is meant to get detected in software from arbitrary GPIO while the SD card switch replaces the HALL switch IO pin and hardware defined SD interface shutdown

11:38 <Joerg-Neo900> so worst case (HB in use) software will igrnore the hall switch

11:39 <Joerg-Neo900> makes sense?

11:44 <houkime> it is around 3 mm displacement if moving it towards the neck.

11:46 <Joerg-Neo900> why?

11:46 <Joerg-Neo900> also I don't understand "neck"

11:47 <houkime> mb it is possible to place it alongside hb but not really sure if there is place provided there's an sd holder

11:48 <houkime> neck is how i call the vertical start of the hook.

11:50 <Joerg-Neo900> hall is on outer surface, HB conn is on "inner" surface. The only thing hall can collide with are the drills themselves which are max 0.9mm diameter as stated above, so how can hall get displaced 3mm?

11:51 <houkime> Probably i need to make some screens and draw stuff

11:51 <houkime> sec

11:52 <Joerg-Neo900> unles hall chip itself was >4.2mm one dimenasion, which it isn't

12:05 <Joerg-Neo900> since 4.2mm/2 + 0.9mm = 3mm

12:07 <houkime> ok, if we expand bob a little bit more, it is possible to make it 1.2mm

12:08 <houkime> screen incoming

12:08 <Joerg-Neo900> which is within range that hall should work, proto_v2 to verify this

12:11 <Joerg-Neo900> the heck, where gone the link to highres scans of PCBA in resources page?

12:12 <houkime> http://susepaste.org/eab8ecea

12:13 <houkime> however I need to move hb iself and have hall from another side.

12:19 <Joerg-Neo900> hmmm, I can't make much sense from this thumbnail

12:21 <houkime> The rest of bob layout is not really informative since I'm trying some crazy placement schemes.)

12:21 <houkime> man, it's hell here.

12:22 <houkime> well, the circle is where the hall sensor is according to scans

12:22 <houkime> the drills are hb drills

12:22 <houkime> white line is the former bob edge that was expanded as soon as i checked case sonstraints

12:24 <houkime> and the green fpis hall

12:24 <houkime> and there's a yellow edge on the right.

12:24 <Joerg-Neo900> I realize HB is two rows, so the hall component might have to move a more than 1.27mm (distance between two holes)away from the card holder

12:25 <Joerg-Neo900> so yeah, I see how hall placement is challenging, sorry please do your best

12:25 <Joerg-Neo900> worst case extend BOB edge cut

12:25 <houkime> already extended

12:25 <Joerg-Neo900> :-)

12:26 <houkime> 0.3 mm till we're into metal edge

12:26 <Joerg-Neo900> sorry, have to go offline again

12:26 <Joerg-Neo900> HB conn position is not set in stone, if you can move it closer towards SD holder, do it

12:28 <houkime> ok

12:28 <Joerg-Neo900> I don't recall where from the 2.2mm distance from center of conn to edge of holder originate from. wpwrak ^^^ any comments on that one?

12:32 <Joerg-Neo900> disconnecting VNC, bbl

12:33 <houkime> bye

14:24 <houkime> irclog.whitequark stopped logging this channel

14:25 <houkime> or not

14:25 <houkime> nope,my glitches.

14:29 <DocScrutinizer51> hah, my ZNC buffer playback works