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robbiethe1st | OK, guys, I need some help | 02:50 |
---|---|---|
robbiethe1st | I'm trying to use my USB barcode scanner with my N900. I've got HEN etc. | 02:50 |
robbiethe1st | I've been able to get it to connect, and when I scan a barcode, things /sort of/ work... but only letters, no numbers. (keymapping issue?) | 02:51 |
robbiethe1st | When plugged into my Debian PC, works fine. | 02:51 |
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DocScrutinizer05 | ugh | 03:45 |
DocScrutinizer05 | yeah, so it probably emulates a kbd, and your mapping is incorrect for the keyboard it emulates | 03:46 |
DocScrutinizer05 | robbiethe1st: ^^^ | 03:46 |
DocScrutinizer05 | check syslog or lsusb how it registers to system | 03:47 |
robbiethe1st | I know it emulates a kbd | 03:49 |
DocScrutinizer05 | would make quite a lot of sense. Try whatever apps are available to switch to external USB-attached kbd | 03:49 |
DocScrutinizer05 | I bet it emulates a standard 104-key PC USB kbd | 03:49 |
DocScrutinizer05 | so check/google for HEN+keyboard+maemo | 03:50 |
DocScrutinizer05 | and see how to conveniently switch to support for 104key | 03:50 |
robbiethe1st | extkbd. Lets see | 03:51 |
DocScrutinizer05 | :-) | 03:51 |
robbiethe1st | Good to go | 03:55 |
robbiethe1st | yay | 03:55 |
DocScrutinizer05 | :-) | 04:05 |
DocScrutinizer05 | robbiethe1st: you might want to disable the external 2keyboard" barcode reader for X11 and directly read from it in your barcode reader app | 04:07 |
robbiethe1st | Actually, I want to paste the codes into VIM... save em to a text file | 04:07 |
robbiethe1st | seems to work | 04:07 |
DocScrutinizer05 | otherwise input from barcode rader might end up in arbitrary apps running on N900, whatever just has focus | 04:07 |
robbiethe1st | Yup | 04:08 |
DocScrutinizer05 | ooh, VIM. Then this is exactly what you want | 04:08 |
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robbiethe1st | Yup. Plan is to save it to text, input a few hundred codes, then copy that file onto a PC for further processing | 04:08 |
DocScrutinizer05 | :nod: | 04:08 |
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* DocScrutinizer05 wonders if robbiethe1st just uses VIM because it seems like the easiest way. While maybe a 'readmybarcode >>mybarcodes.txt' would do same thing with better adapted function specs | 04:25 | |
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robbiethe1st | Maby. Though I can't imagine anything easier than open VIM, put in insert mode, and scan codes. | 04:26 |
robbiethe1st | The scanner adds a \n after each code, so... | 04:27 |
r00t|eeepc | damn, my scanner does not send a newline... it's damn annoying... | 04:27 |
robbiethe1st | This one's the cheapest USB one I could find on ebay | 04:28 |
robbiethe1st | Literally. | 04:28 |
r00t|eeepc | mine is a used one that cost like $700 back when it was now ;) | 04:28 |
r00t|eeepc | nice part is it has a motorized scanner that detects the code in any orientation, and ps/2 and rs232 output | 04:29 |
r00t|eeepc | (probably could be configured to add a newline if i had the manual) | 04:29 |
robbiethe1st | This is a cheap one. It just flashes a laser back and forth, and scans so long as you are somewhere near horizontal | 04:30 |
r00t|eeepc | i'd use a serial one and hook up a bluetooth module | 04:30 |
r00t|eeepc | much more convenient | 04:30 |
r00t|eeepc | also, mind your poor little micro-usb port | 04:31 |
robbiethe1st | Why? Ebay has bluetooth ones easily. | 04:31 |
robbiethe1st | also I tried one we had at work, and couldn't get it to pair | 04:31 |
r00t|eeepc | but the bluetooth module is $7 or so... while a scanner with bluetooth is... $50+? | 04:31 |
robbiethe1st | But I also didn't look for any special software | 04:31 |
r00t|eeepc | a bluetooth barcode reader should be either rfcomm or HID, no special software needed | 04:32 |
robbiethe1st | It just wouldn't pair 'pairing error' | 04:32 |
r00t|eeepc | btw, why not use camera + image processing? | 04:33 |
r00t|eeepc | no extra hw needed | 04:33 |
robbiethe1st | I'll try it with mbarcode, but for some reason I doubt it'll paste the code to a text file | 04:35 |
r00t|eeepc | we call it "open source" | 04:35 |
r00t|eeepc | personally i found mbarcode completely useless... it's so slow to start that in the time it takes you could just type in the contend of the code a few times... | 04:37 |
r00t|eeepc | *contents | 04:37 |
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robbiethe1st | what else is there? | 04:38 |
r00t|eeepc | i wonder how they managed to make it perform so badly... it's not written in java or anything | 04:38 |
r00t|eeepc | i dunno... i'd just go for v4l grabber + image processing | 04:39 |
robbiethe1st | lots of work | 04:39 |
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robbiethe1st | I mean, I've now got a good, easy solution | 04:39 |
r00t|eeepc | except it doesn't work ;) | 04:39 |
robbiethe1st | ? | 04:40 |
robbiethe1st | The only problem with it was the keymap | 04:40 |
robbiethe1st | extkbd did. | 04:40 |
r00t|eeepc | ah | 04:40 |
robbiethe1st | Now, all I need to do is plug it in, run HEN, start VIM, press i, and just start scanning codes. | 04:41 |
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r00t|eeepc | i still wonder how long the micro-usb port will last in mobile usage like that, if you use it regularly | 04:41 |
robbiethe1st | This is a one time thing. But I am slightly worried about it; one of these days, I'll open er up and solder it in place | 04:43 |
robbiethe1st | Actually, I'd be more worried about the times I've dropped my n900 while plugged in... thing hanging on the cord isn't so good | 04:44 |
robbiethe1st | Also, mind, I've already lost one N900 a couple of years ago. Broken USB port | 04:44 |
r00t|eeepc | i don't think hanging on the cord is a problem at all, but hitting the ground with the plugged-in connector first | 04:44 |
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robbiethe1st | heh | 04:46 |
r00t|eeepc | i had the port break in one... which was no problem (used external charger)... until it broke and needed to be re-flashed | 04:46 |
robbiethe1st | You didn't have backupmenu, did you? | 04:46 |
r00t|eeepc | in my current one the port work, but not 100% reliable... | 04:46 |
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r00t|eeepc | backupmenu is a useless piece of crap... beacuse it needss the rootfs to be still intact | 04:47 |
robbiethe1st | Partially intact, mind you | 04:47 |
robbiethe1st | But I've not seen rootfs corruption | 04:48 |
robbiethe1st | Optfs corruption, quite a bit | 04:48 |
r00t|eeepc | well, it just froze on the nokia logo screen, where it would normally display the kernel version (dev mode enabled) | 04:48 |
robbiethe1st | ...Though, actually, more that I think about it, even I've relied on flashing a rootfs image a few times | 04:48 |
robbiethe1st | Actually, have you looked at re-soldering the port? | 04:49 |
r00t|eeepc | yes, and in the process ripped off two of the five solder pads | 04:51 |
r00t|eeepc | i also tried on the debug connector with no luck | 04:51 |
robbiethe1st | I've done the same | 04:51 |
robbiethe1st | I'm going to have to try again, one of these days | 04:51 |
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r00t|eeepc | i have previously re-soldered the cardbus/pcmcia slot on a notebook... that has quire a few more contacts, but at a less insane pitch, and with more room to work in | 04:52 |
robbiethe1st | I'm thinking next time to try hot-air-rework on it, after heating the whole thing up a bit | 04:53 |
r00t|eeepc | (interestingly the issue was the exact same... bad design with too much stress on the solder joints) | 04:53 |
robbiethe1st | Of course, if I /do/ get a working USB port... I'm going to solder the top of the port to the metal cans on each side | 04:53 |
robbiethe1st | Because | 04:53 |
r00t|eeepc | don't assume soldering like that is easy... you need to apply a LOT of heat to the connector shield to solder it, which is likely to juse cause more damage | 04:54 |
r00t|eeepc | *just | 04:54 |
DocScrutinizer05 | you're soldering what? the top to the metal cans? | 04:56 |
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r00t|eeepc | i guess he means the connector shield to the shields on the pcb | 04:57 |
DocScrutinizer05 | soldering USB like ~usbfix needs a 60W or better 100W soldering iron | 04:57 |
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robbiethe1st | Seriously | 04:57 |
robbiethe1st | I've got a temp-controlled 60w + hot air rework station, and last I tried, I just managed to get cold joints | 04:58 |
robbiethe1st | things just solidified as soon as they touched the ground pad | 04:58 |
DocScrutinizer05 | heating up the ground pads is not easy | 04:58 |
DocScrutinizer05 | that's why you need the 100W | 04:58 |
DocScrutinizer05 | alternatively you use insanely high temperature, so copper of groundplane heats up faster locally than it can dissipate the heat to the wide area | 04:59 |
robbiethe1st | My thought is perhaps heating the entire board up to say 120F, slowly... let it sit there for a while, then shield the chips around it and just hot-air-melt it | 05:00 |
DocScrutinizer05 | sure heating up the whole thing to ~80°C before you start will help a lot | 05:00 |
DocScrutinizer05 | hot air is fine for the tiny electrical contacts, but for the huge groundplane stuff you want a old fashion monster iron | 05:01 |
robbiethe1st | I may have to grind myself a custom tip... my thin one couldn't get enough heat to it | 05:01 |
robbiethe1st | see if I can come up with something | 05:01 |
DocScrutinizer05 | yes | 05:01 |
DocScrutinizer05 | I'd use that one if I still had it: http://www.lidl.de/de/Loetwerkzeuge/PARKSIDE-Loetpistole-PLP-100-A1 | 05:03 |
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DocScrutinizer05 | ideal tip shape, ideal power | 05:04 |
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robbiethe1st | Or, maby I'll just get a NeoN900 | 05:04 |
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robbiethe1st | board for it | 05:04 |
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DocScrutinizer05 | good plan :-) | 05:35 |
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Tekk_ | anyone have issues with mumble not working? installing in app manager gives a dep failure because it wants like 1.2.4 when the repo has 1.2.6 | 06:07 |
Tekk_ | and if you decide to be naughty and just install it with apt-get, it fails to actually pick up anything audio related. It sees all the devices and everything fine but there's o output or input (presumably the mumble-11x package does something to fix this) | 06:08 |
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kwtm2 | Is the RX-51 the hardware part of the N900? (reading about the Neo900) | 06:48 |
robbiethe1st | Yeah | 06:51 |
robbiethe1st | RX-51 is the model | 06:51 |
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kwtm2 | wow, there are quite a few challenges to making the Neo900 a reality. | 06:58 |
kwtm2 | (just finished reading the "feasibility study"). I hope we find a big enough market for it. | 06:58 |
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Tekk_ | kwtm2: link? | 07:06 |
kwtm2 | Tekk_: http://projects.goldelico.com/p/neo900/downloads/get/neo900-feasibility.pdf | 07:09 |
kwtm2 | Tekk_: That's from http://neo900.org/specs | 07:09 |
Tekk_ | yeah, found it on the site | 07:10 |
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Tekk_ | hm, noticed an nfc in the best case specs. does that mean other half like functionality in that case? | 07:12 |
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DocScrutinizer05 | that's up to you to switch your profile or wallpaper or theme when NFC detects a certain tag | 13:58 |
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kerio | DocScrutinizer05: ooh, how will the neo900 support battery hotswap? | 14:45 |
kerio | will that also mean that we can have pure-hardware battery charging? | 14:47 |
DocScrutinizer05 | kerio: that's pretty much unrelated | 14:59 |
kerio | mh, fair enough | 15:00 |
DocScrutinizer05 | hotswap basically works like: connect all dispensable consumers directly to battery, buffer the rest from a huge buffer capacitor that we charge to a multiple of needed voltage and use as some sort of UPS | 15:02 |
DocScrutinizer05 | e.g. modem has 3 power supply pins, of which one is low-power and can keep the modem alive for a few secons from a pretty small buffer cap | 15:03 |
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kerio | i see | 15:03 |
kerio | that's neat | 15:03 |
kerio | so you'll still have to be quick with the hotswap | 15:03 |
DocScrutinizer05 | of course TX will fail and modem needs to resume after that | 15:04 |
DocScrutinizer05 | yes | 15:04 |
DocScrutinizer05 | that's the point about "ultrafast batteryswap procedure" | 15:04 |
DocScrutinizer05 | http://www.youtube.com/watch?v=1ta7Mh9a_y8 | 15:07 |
DocScrutinizer05 | the charging is planned to be exactly like TI reference in e.g. beagleboard, i.e. based on twl4030. Evaluation pending, we don't want to run into a true deadlock where device can't charge when battery deep discharged | 15:10 |
DocScrutinizer05 | in GTA04 it allegedly works flawlessly | 15:10 |
DocScrutinizer05 | I'm still not happy with the GTA04 circuitry since it uses a linear regulator which has a pretty poor efficiency | 15:11 |
kerio | like the n900 ahem ahema | 15:11 |
DocScrutinizer05 | what's wrong with Neo900? it charges from almost all situations except broken rootfs and already defect EOL battery | 15:12 |
DocScrutinizer05 | s/Neo9/N9/ | 15:13 |
infobot | DocScrutinizer05 meant: what's wrong with N900? it charges from almost all situations except broken rootfs and already defect EOL battery | 15:13 |
DocScrutinizer05 | it's a tad unfortunate that you will discharge your battery by bootlooping when rootfs broken, and you can't restore rootfs via simple normal flashing when battery is too low | 15:14 |
DocScrutinizer05 | you can recover even from that with rescueOS and similar RAM-based charger software | 15:16 |
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DocScrutinizer05 | Neo900 might not support classical flashing at all, and instead boot from uSD, so even less of a recovery hassle even when your NAND based rootfs is broken. You simply insert a uSD that has a sane working rootfs and you're good to go for charging and for flashing NAND | 15:18 |
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chem|st | script: read backscroll^^ | 16:10 |
DocScrutinizer05 | ??? | 16:20 |
DocScrutinizer05 | script didn't say anything the last few days, it seems | 16:21 |
DocScrutinizer05 | chem|st: I'm not able to join meeting tonight | 16:25 |
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chem|st | DocScrutinizer05: noted | 16:38 |
chem|st | I am talking with him in another channel about neo900 | 16:38 |
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SAiF | huh? where is the crontab? | 18:34 |
MMN-o | Have you installed a cron daemon? | 18:37 |
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SAiF | do you have to? | 18:42 |
SAiF | I cant find any.. | 18:42 |
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joga | well, opened up the n900 with broken usb and the port was just loose there, took a couple of pics http://joga.daug.net/n900-usb/ | 20:28 |
joga | (of pads on pcb and the connector itself) | 20:29 |
joga | I guess I at least need to get a spare port, only seem to have spare miniusbs now | 20:29 |
joga | also need to get some compressed air... | 20:31 |
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Sicelo | SAiF: alarmed might just have all you need.. unless you have 'special' need | 21:11 |
DocScrutinizer05 | right, since there is no cron on maemo | 21:11 |
DocScrutinizer05 | alarmd is as close as it gets to crond | 21:12 |
DocScrutinizer05 | and you could use alarmclient to manage alarmd "crontabs", but you don't want to go that bumpy road. Rather use alarmed | 21:13 |
DocScrutinizer05 | (somebody should port alarmed to default PC linux, as a decent frontend to cron) | 21:14 |
DocScrutinizer05 | joga: why? all looks pretty "easy", just solder port to PCB again | 21:15 |
DocScrutinizer05 | looks like you were extremely "lucky" with your usb breakage | 21:16 |
joga | yeah considering the pads are ok | 21:16 |
joga | it just looks a bit filthy but haven't cleaned it up really yet | 21:16 |
DocScrutinizer05 | that's the point | 21:16 |
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DocScrutinizer05 | first of all you need to clean port and PCB pads with solder iron and solder wick | 21:17 |
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DocScrutinizer05 | then go for: | 21:17 |
joga | yeah, got those | 21:17 |
DocScrutinizer05 | ~usbfix | 21:17 |
infobot | usbfix is probably http://talk.maemo.org/showthread.php?t=75920 - and **NEVER** use epoxy (unless you want to seal your device for underwater) | 21:17 |
joga | ye, glanced at that, I guess I'll do the scrape thing | 21:17 |
joga | after I get over this flu I'll try | 21:18 |
DocScrutinizer05 | you can remove/cut/bend the "roof" over contacts of port, to better reach them | 21:18 |
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DocScrutinizer05 | nevermind, not really | 21:19 |
joga | the spot looked a bit tight but I guess others have managed to do it nevertheless :) | 21:19 |
DocScrutinizer05 | the mech fix pads *under* the port are dead, bit that's not relevant | 21:19 |
DocScrutinizer05 | yeah, hot air might help | 21:20 |
DocScrutinizer05 | anyway just make sure you wetted pads and contacts properly with solder, and applied SMD(!)-flux to both. Then place USB in correct location and fix (sticky tape or tiny solder blob on one side) | 21:22 |
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DocScrutinizer05 | then either hot air or iron with thin tip, and just heat up the 5 contacts | 21:22 |
DocScrutinizer05 | then fix port thoroughly according to ~usbfix | 21:23 |
joga | DocScrutinizer05, thanks | 21:24 |
DocScrutinizer05 | if nothing of all that works for you - use 10mm thin wires to connect port to pads. Bend wires up to form inverted U while pushing port back into correct location, before fixing it on both sides | 21:24 |
DocScrutinizer05 | this is a botch, but should work "good enough" | 21:25 |
joga | yeah | 21:25 |
DocScrutinizer05 | if soldering the 5 contacts turns out to be too hard | 21:26 |
DocScrutinizer05 | wires must not be longer than 10mm | 21:26 |
joga | I don't have a hot air gun and just some basic flux pen but I think I can manage one way or another | 21:26 |
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joga | I guess I can just barely reach back there with the finest tip I got... besides the flex cable and some plastic beside it, are there any extra sensitive components near there I might screw up if I heat it too long? | 21:35 |
joga | the tip is pretty crap heat transfer wise | 21:35 |
joga | :) | 21:35 |
DocScrutinizer05 | lift off the uSD daughterboard | 21:42 |
DocScrutinizer05 | protect camera! | 21:42 |
DocScrutinizer05 | then you're basicaly fine | 21:42 |
DocScrutinizer05 | take care of the flex cable though, it's not really easily damanged but non-recoverable if you damage it | 21:43 |
DocScrutinizer05 | it won't break when you take care a bit about it | 21:44 |
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joga | ooooh it lifts off eh, didn't realize to try but figures | 21:47 |
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joga | scared to lift it though...should it just pop out if done right? | 21:53 |
joga | the service manual just mentions how to get the camera out but didn't find proper procedure for the uSD | 21:54 |
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r00t|home | i cut away the shield next to the usb connector when trying to solder it... | 21:57 |
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joga | r00t|home, did you succeed? | 22:05 |
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joga | ok this picture is useful... http://people.openmoko.org/joerg/n900/images/n900_12.jpeg | 22:12 |
joga | now to figure out how to achieve that without screwing up the flex.. | 22:13 |
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joga | ah, got it | 22:20 |
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