| 00:18.44 | ds2 | 9~ |
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| 00:27.58 | sunrunner20 | >_> |
| 00:27.59 | sunrunner20 | wtf |
| 00:39.51 | g1powermac_apl | wb prpplague and RobotGuy |
| 00:40.09 | RobotGuy | g1powermac_apl: Howdy |
| 00:41.34 | RobotGuy | g1powermac_apl: I got my magnifying light today. :) Had to return a broken (non routing) router and could only get store credit. |
| 00:42.27 | RobotGuy | Now I just need to get my panavice - maybe next month if my new router doesn't come in. |
| 00:43.52 | g1powermac_apl | nice |
| 00:44.25 | g1powermac_apl | found his old sega nomad, would be kinda interesting to figure out how to run homebrew code on it :-) |
| 00:49.53 | RobotGuy | g1powermac_apl: What processor and speed has it got? |
| 00:50.08 | g1powermac_apl | its got one of my favorite procs in it, a m68k |
| 00:50.17 | g1powermac_apl | http://en.wikipedia.org/wiki/Sega_Nomad |
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| 00:52.38 | sunrunner20 | ok |
| 00:52.38 | sunrunner20 | that was the most annoying thing i had to do today |
| 00:52.38 | sunrunner20 | I had to sand down the ground tab on my LDO |
| 00:53.01 | ds2 | what was wrong with it? |
| 00:53.23 | sunrunner20 | coulden't solder to it o.0 |
| 00:53.34 | ds2 | TO220? |
| 00:53.37 | sunrunner20 | yea |
| 00:53.59 | sunrunner20 | but |
| 00:54.01 | ds2 | thought you are suppose to use the middle terminal instead of the tab? |
| 00:54.08 | sunrunner20 | youcan |
| 00:54.13 | sunrunner20 | but the tab is ground too :) |
| 00:54.19 | sunrunner20 | and it was closer ^_^ |
| 00:54.35 | ds2 | I know. It is the reason for those mica insulators ;) |
| 00:55.24 | sunrunner20 | ok |
| 00:55.29 | sunrunner20 | that could have been bad |
| 00:55.41 | sunrunner20 | I almost held down the wire with the sharp end of the exact o blade |
| 00:55.42 | RobotGuy | g1powermac_apl: Interesting. Not very fast though. |
| 00:56.38 | g1powermac_apl | RobotGuy, speed is never a thing with me, its all about how useful it can be or just plain fun :-) |
| 00:56.46 | RobotGuy | Time to reboot to Windows and play WoW with a friend for awhile. :D |
| 00:57.00 | RobotGuy | g1powermac_apl: There is that, of course. Fun factor IS very important. :D |
| 00:57.08 | RobotGuy | Anyways, I'm out for a bit. |
| 00:57.15 | MonMotha | you're not really supposed to solder to the TO-220 tab |
| 00:57.25 | MonMotha | it's supposed to be used for heatsinking |
| 00:57.58 | MonMotha | in fact, most semi makers specifically say that surface mounting a TO-220 is not recommended, and instead suggest mechanical (screw and nut) mounting |
| 00:58.26 | sunrunner20 | but nothing against electrical current flow through the tab |
| 00:59.02 | sunrunner20 | MonMotha: i'm using 1/10 of the regulators capacity a good open space is all it needs |
| 01:00.42 | sunrunner20 | and its probally going to run close to 90% effichancy |
| 01:02.23 | MonMotha | no, it is in fact electrically connected to what it needs to be |
| 01:02.28 | MonMotha | that's why it's a good thermal conductor |
| 01:02.44 | MonMotha | but there's a reason those tabs aren't usually very solderable |
| 01:03.27 | sunrunner20 | some sort of coating... |
| 01:04.12 | sunrunner20 | plating if you wanna get anal |
| 01:33.39 | g1powermac_PB | well finally found the homebrew bit for my sega nomad: http://www.raphnet.net/electronique/genesis_cart/genesis_cart_en.php |
| 01:34.07 | g1powermac_PB | technically its for the standard genesis, but the nomad is basically a handheld genesis anyway, as it takes standard genesis cartridges |
| 01:34.55 | g1powermac_PB | it looks really simple |
| 02:00.32 | sunrunner20 | wth |
| 02:00.36 | sunrunner20 | its pink like cuppoer |
| 02:00.39 | sunrunner20 | but I can't solder too it |
| 02:00.49 | sunrunner20 | o.0 |
| 02:01.05 | sunrunner20 | *copper |
| 02:01.33 | sunrunner20 | must be some metal that doesn't like lead |
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| 04:45.57 | RobotGuy | ce_geek: Hi! |
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| 07:00.00 | metalfan_ | hi |
| 07:00.08 | metalfan_ | got some big resistors that can do 17W, does it mean that they can do this without extra cooling? they tend to get really hot even with less than 17w going through them |
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| 07:27.51 | magnetron | hi, i'm looking for introductory resources on PSK decoding, preferably using a PLL. the goal is to decode pager messages at ~169 MHz |
| 07:28.44 | [AD]Turbo | yo all |
| 07:29.08 | magnetron | hi [AD]Turbo |
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| 09:47.26 | magnetron | hi, i'm looking for introductory resources on PSK decoding, preferably using a PLL. the goal is to decode pager messages at ~169 MHz |
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| 09:49.01 | T0mW | phase shift keying, that would be RF digital mode |
| 09:49.16 | T0mW | a form of FM modulation |
| 09:49.28 | magnetron | yes |
| 09:50.14 | T0mW | so, do you want to build a radio or decode a datastream? |
| 09:51.28 | magnetron | i want to build a radio receiver. i know some about microprocessors, so decoding won't be the problem, but i don't know how to build a radio receiver |
| 09:53.01 | SpeedEvil | what frequency? |
| 09:53.10 | SpeedEvil | and what waveband |
| 09:53.14 | SpeedEvil | err |
| 09:53.18 | SpeedEvil | and what modulation |
| 09:53.24 | SpeedEvil | do you mean a broadcast reciever? |
| 09:53.43 | SpeedEvil | Oh |
| 09:54.30 | SpeedEvil | I'd first wander over google, looking for pager frontend chipses |
| 09:54.34 | SpeedEvil | see if tehre are any |
| 09:54.43 | T0mW | magnetron: you might look into some radio chipsets for that, if you really want to build your own radio. RF can be tricky to design + build |
| 09:55.50 | magnetron | PSK @ 169.800 MHz +- 4.5kHz, 1200 bits per second |
| 09:56.08 | T0mW | up around the 100+ MHz range, things start to get "interesting", component lead lengths suddenly behave as inductors, traces on circuitboards become transmission lines. |
| 09:56.10 | T0mW | etc. |
| 09:56.40 | magnetron | ok, i'll google some more. most of the stuff i find is pay-for PDFs from ieee and similar |
| 09:57.14 | T0mW | you have to use compositon resistors as some metal film / carbon film types become inductors. |
| 09:58.02 | T0mW | magnetron: no, you want to go the chip manufacturer websites and look for app-notes. |
| 09:58.22 | magnetron | T0mW: hmm, ok. |
| 09:58.40 | T0mW | app-notes general give a basic design you can start with. Some of their datasheets may have some sample circiut layouts for PCB. |
| 09:58.58 | T0mW | magnetron: you ever design an RF device? |
| 09:59.28 | magnetron | i checked the datasheets of the PLL my local store holds. nothing about FM receivers there. |
| 09:59.57 | magnetron | T0mW: no, this is sort of a hobby project to go with my EE studies |
| 10:00.48 | T0mW | yes, well, psk would be a similar modulation scheme resembling FM, but it is different in that its not really receivable with an FM radio. You could hear something, but it wouldn't truly be the data content. |
| 10:01.54 | magnetron | i've seen multiple setups where they've hooked up a FM scanner to a sound card to decode pager datat |
| 10:02.05 | T0mW | magnetron: Ham Radio uses a technique called BPSK, you may want to look into the spec on that an maybe get some ideas. the electronics of the decoder is very simple. The radio is the complex part. |
| 10:02.17 | magnetron | T0mW: this is BPSK. |
| 10:02.18 | T0mW | they call it PSK31 |
| 10:02.28 | magnetron | ok |
| 10:02.39 | T0mW | err |
| 10:02.55 | T0mW | I meant QBSK, not BPSK |
| 10:03.03 | T0mW | Hams use QPSK |
| 10:03.12 | magnetron | oh, that's totally different |
| 10:03.13 | T0mW | cannot spell this morning |
| 10:03.57 | T0mW | the decoder itself should be fairly simple, after all, they have to sell those pagers as cheap as they can. |
| 10:05.17 | T0mW | a friend of mine is into QPSK, he (N3AOI) has been trying to me (WN3L) into that for the past few years. |
| 10:05.36 | magnetron | ok |
| 10:05.37 | T0mW | a friend of mine is into QPSK, he (N3AOI) has been trying to interest me (WN3L) into that for the past few years. |
| 10:06.38 | T0mW | If you build the radio, you will need an RF signal generator to align it. keep that in mind. |
| 10:07.14 | magnetron | like an oscillator tuned to the carrier frequency? |
| 10:07.19 | T0mW | spectrum analyzer would also be helpful, but not necessary. |
| 10:08.15 | T0mW | RF Signal Generator is a piece of test equipment. You can use it to generate a specific RF frequency at a specific dBm level. |
| 10:08.49 | T0mW | Most modern generators can send data bursts |
| 10:09.04 | T0mW | or have an external modulation input of some kind. |
| 10:09.05 | magnetron | oh. there's a local electronics club here, they have some nice equipment. |
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| 10:10.07 | T0mW | yeah, go find a ham radio club in your area and ask them. Beware, there are hams that know little about RF and just have the license becuase it is easy to get the entry level licenses. |
| 10:10.17 | SpeedEvil | magnetron: google is good - but you have to know how to work it. |
| 10:10.36 | T0mW | You will find that many electronics engineers have an FCC Amateur Radio License. |
| 10:11.15 | T0mW | my callsign is WN3L |
| 10:11.25 | SpeedEvil | http://www.google.co.uk/search?hl=en&safe=off&client=firefox-a&channel=s&rls=org.mozilla%3Aen-US%3Aofficial&hs=sVC&q=pager+frontend+volt*&btnG=Search&meta= |
| 10:12.53 | SpeedEvil | Or http://www.google.co.uk/search?hl=en&safe=off&client=firefox-a&channel=s&rls=org.mozilla%3Aen-US%3Aofficial&hs=Lsr&q=pager+chipset&btnG=Search&meta= |
| 10:13.23 | magnetron | thx SpeedEvil |
| 10:13.52 | SpeedEvil | Then you work out what the name of the pager standard in your area is, and add that to search terms |
| 10:14.06 | magnetron | it's POCSAG |
| 10:15.00 | T0mW | yeah, you are going to need a quadrature detector, correct? |
| 10:15.11 | magnetron | the thing is, there's a very limited set of parts i can buy here. living in Sweden and all. |
| 10:15.14 | magnetron | T0mW: no |
| 10:15.18 | SpeedEvil | magnetron: no you don't |
| 10:15.41 | magnetron | T0mW: since this is BPSK, there are only two states |
| 10:16.22 | T0mW | well, it would be phase detection technique of some kind |
| 10:16.23 | SpeedEvil | magnetron: farnell.com sell to sweden, as do digikey.com - but those have expensive |
| 10:16.29 | SpeedEvil | minimum orders |
| 10:16.37 | magnetron | yep. |
| 10:16.53 | T0mW | SpeedEvil: define "expensive" |
| 10:17.01 | T0mW | ;) |
| 10:17.13 | SpeedEvil | 50 quid to the UK effectively |
| 10:17.17 | SpeedEvil | Well... |
| 10:17.28 | SpeedEvil | IIRC a 1p order will cost you 24 quid or so. |
| 10:17.42 | T0mW | that is with shipping, right? |
| 10:17.49 | SpeedEvil | Due to small order charges and shipping. |
| 10:17.57 | SpeedEvil | 50 quid now has free shipping. |
| 10:18.00 | SpeedEvil | yes. |
| 10:18.16 | T0mW | yeah, Digikey has a $5 small order charge. |
| 10:18.47 | T0mW | I generally can find "something else" that I "need" to make the minimum order, heh. |
| 10:19.07 | SpeedEvil | tom: horribly more than that to the UK :( |
| 10:20.01 | T0mW | SpeedEvil: agreed. I get my parts from them via USPS (United State Postal Service) Priority Mail and it is cheaper AND faster than UPS |
| 10:20.24 | T0mW | SpeedEvil: but, I am in Pennsylvania |
| 10:21.25 | T0mW | SpeedEvil: with all the interesting stuff now becoming available in China, soon I will have to learn to speak Chinglish |
| 10:21.58 | T0mW | Chinese-English |
| 10:22.06 | magnetron | ok, googling for "PLL FM receiver" gave me some better links, since i can ignore the fact that it's PSK and just interpret the signal as FM |
| 10:23.07 | T0mW | magnetron: the problem with an FM receiver is the pre-emphasis / de-emphasis circuitry. You would have to pick off the signal at the detector. |
| 10:23.35 | T0mW | before it goes into any audio circuitry when it gets de-emphasised |
| 10:24.37 | T0mW | IIRC, analog devices makes receivers on a chip. Programmable via SPI as to frequency. |
| 10:25.14 | T0mW | Philips (NXP) used to do some also. But, it has been *years* since I was looking at that stuff. |
| 10:31.22 | T0mW | magnetron: http://www.standardics.nxp.com/products/rfif/ |
| 10:32.32 | magnetron | T0mW: nice, ty |
| 10:33.07 | T0mW | they are building blocks |
| 10:34.07 | T0mW | magnetron: the web makes life sooooo much easier now. I threw out all my data books about 6..7 years ago. |
| 10:35.01 | T0mW | maybe longer, don't recall. It is so nice to pull this stuff up on the computer from the web than it was to spend time on the phone calling companies. |
| 10:36.07 | SpeedEvil | tom: and how wonderful is progress! It means that companies can just pull datasheets of old parts, and it's like they never existed! |
| 10:38.50 | T0mW | yeah |
| 10:39.42 | T0mW | SpeedEvil: I'm finding that out with LCD displays. You can get some older TFT displays at a reasonable price, but you cannot find data sheets on them. |
| 10:40.06 | SpeedEvil | what size are you looking at? |
| 10:40.18 | T0mW | 6..8" |
| 10:40.21 | SpeedEvil | ah |
| 10:40.41 | magnetron | archive.org is handy |
| 10:40.48 | T0mW | I would like to find a 7" TFT display with touchpanel for around $100 |
| 10:58.10 | SpeedEvil | 2.5-4" is easy and chap |
| 10:58.13 | SpeedEvil | cheap |
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| 10:59.49 | T0mW | I want something large enough that you aren't required to use a stylus |
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| 11:10.59 | ce_geek | Hello all. |
| 11:11.09 | ce_geek | I exist, but I'm at work most of the time lately. |
| 11:11.19 | ce_geek | heads to work |
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| 11:37.52 | g1powermac_PB | morning GPSFan |
| 11:38.03 | GPSFan | g1powermac_PB: morning.. |
| 11:40.12 | g1powermac_PB | has a new project while I'm waiting for either my zipit or the soldering iron tip so I can solder those cc2341s to my schmartboards |
| 11:40.59 | g1powermac_PB | I found my old Sega Genesis Nomad last night, and it would be a neat little platform to run a bit of custom code :-) |
| 11:43.16 | GPSFan | has an endless list of projects |
| 11:43.45 | g1powermac_PB | it seems that making a custom cartridge should be really simple |
| 11:44.14 | g1powermac_PB | it seems the cartridges are just rom chips and thats about it |
| 11:44.42 | g1powermac_PB | and I got some really nice nvram I could use as rom chips which would make testing really simple |
| 11:51.57 | g1powermac_PB | heh, actually the nvram I got is too big |
| 11:52.09 | g1powermac_PB | I got a batch of these: http://www.maxim-ic.com/quick_view2.cfm/qv_pk/2677 |
| 11:52.38 | g1powermac_PB | and I only need 2x 512kx8 chips |
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| 12:02.47 | g1powermac_PB | figures, I do have some of maxim's smaller nvrams, but they're too small |
| 12:02.53 | g1powermac_PB | its like the one size I never got |
| 12:19.11 | g1powermac_PB | well, lets see if I can get two samples of the proper sized chips |
| 12:22.28 | g1powermac_PB | hmm, the nvram chips are a bit slower than the flash chips used here: http://www.raphnet.net/electronique/genesis_cart/genesis_cart_en.php |
| 12:24.24 | g1powermac_PB | anyone know if going from 55ns to 70ns would cause a problem on such a slow m68k (clocked at 8mhz)? |
| 12:47.02 | SpeedEvil | what does thge stock rom have? |
| 12:47.22 | SpeedEvil | It's probably much, much slower |
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| 12:57.13 | g1powermac_PB | SpeedEvil: good question, I'll have to crack open a game |
| 13:03.01 | SpeedEvil | I'd expect anything up to 200, or even 300ns to work just fine. |
| 13:03.07 | SpeedEvil | Probably 500. |
| 13:06.04 | g1powermac_PB | man, I never seen such a simple pcb before |
| 13:06.16 | g1powermac_PB | it just a 40 pin dip and two caps |
| 13:06.27 | SpeedEvil | typical of older game carts |
| 13:06.54 | g1powermac_PB | not sure how much info I can get off the numbers on the chip |
| 13:07.01 | g1powermac_PB | its got custom stuff on it |
| 13:08.22 | g1powermac_PB | hmm, nothing |
| 13:08.31 | g1powermac_PB | lemme go crack open some other games |
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| 13:11.53 | SpeedEvil | Go look at a 6502 datasheet. |
| 13:12.18 | g1powermac_PB | why would I look at a 6502 datasheet? the nomad has a m68k in it |
| 13:12.30 | SpeedEvil | sorry - I thought you said 6502 |
| 13:12.38 | SpeedEvil | look at that datasheet then. |
| 13:12.57 | g1powermac_PB | yea, I'm going to later today |
| 13:13.04 | SpeedEvil | See the maximum cs to data ready delay. |
| 13:13.24 | SpeedEvil | In practice, it's unlikely to be under 1/8/MHz |
| 13:13.27 | SpeedEvil | In practice, it's unlikely to be under 1/8MHz |
| 13:13.39 | SpeedEvil | and very unlikely to be under 1/16MHz |
| 13:15.04 | g1powermac_PB | should crack open his nomad too |
| 13:15.22 | g1powermac_PB | need to fix the power plug on it anyway |
| 13:15.30 | magnetron | g1powermac_PB: you won't be able to assemble it :D |
| 13:15.35 | g1powermac_PB | looks like it needs to be resoldered, it resets itself if you move it |
| 13:15.52 | magnetron | g1powermac_PB: "i'll just fix this too"... then it's 100 pieces |
| 13:15.57 | g1powermac_PB | magnetron: ehh? hah |
| 13:16.33 | magnetron | btw i'm about to buy a G4 ibook |
| 13:16.48 | magnetron | PPC cpus are nice |
| 13:31.00 | g1powermac_PB | is on a powerbook G4 right now :-) |
| 13:31.16 | g1powermac_PB | the dreaded rev A 12" aluminum one though |
| 13:31.31 | g1powermac_PB | the thing constantly runs very hot |
| 13:32.14 | g1powermac_PB | though minus the battery and power brick, everything is still original in it |
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| 13:42.06 | g1powermac_PB | mornin prpplague |
| 13:42.12 | prpplague | greetings |
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| 13:47.27 | RobotGuy | Good Morning |
| 13:49.26 | g1powermac_PB | hey RobotGuy |
| 13:49.31 | prpplague | RobotGuy: greetings |
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| 13:50.12 | g1powermac_PB | needs to find a protoboard with an edge connector that is 32 tabs wide |
| 13:50.31 | RobotGuy | I can now finish my wiring for the compass (I2C) and serial Bluetooth modules - got my magnifying light yesterday. :D |
| 13:50.40 | SpeedEvil | g1powermac_PB: naah |
| 13:50.53 | SpeedEvil | g1powermac_PB: cut a bit 32 rows wide |
| 13:51.05 | g1powermac_PB | heh, guess I could |
| 13:51.10 | RobotGuy | I tried to buy some 2N7000 and 74AHC245 but my local source didn't have any. |
| 13:51.11 | SpeedEvil | or is it double sided? |
| 13:51.14 | sjhill | good moroning all |
| 13:51.26 | g1powermac_PB | SpeedEvil: double sided |
| 13:51.32 | RobotGuy | sjhill: Greetings |
| 13:52.00 | SpeedEvil | 1: ah - need the ds stuff then I guess, which is rarer |
| 13:53.41 | g1powermac_PB | needs to see what digikey has |
| 13:53.50 | g1powermac_PB | jameco doesn't seem to have any |
| 13:54.00 | RobotGuy | g1powermac_PB: I can't look at Digikey right now. :) Too many things I want. |
| 13:54.07 | g1powermac_PB | hehe |
| 13:54.38 | g1powermac_PB | oh RobotGuy, I don't think I showed you this link: http://www.raphnet.net/electronique/genesis_cart/genesis_cart_en.php |
| 13:54.51 | RobotGuy | Between Lynxmotion, Spark Fun, and Trossen Robotics, I am gonna be broke for a very long time when I have money to spend again. |
| 13:55.02 | g1powermac_PB | since my sega nomad is really just a handheld genesis, that'll work to get homebrew code on it :-) |
| 13:56.16 | g1powermac_PB | prpplague: I decided to hack my old sega nomad I found yesterday in the interim while I wait for my zipit and/or soldering iron tip from circuitspecialists :-) |
| 13:56.28 | prpplague | g1powermac_PB: ahh |
| 13:58.11 | RobotGuy | g1powermac_PB: Interesting.. What processor is on that console? |
| 14:00.15 | RobotGuy | prpplague: How is everything today? |
| 14:00.30 | prpplague | breaks his on rule |
| 14:00.43 | prpplague | pretty shitty, but other wise just dandy |
| 14:02.08 | RobotGuy | prpplague: Durn, that sucks. Hopefully things will get better soon. |
| 14:02.38 | prpplague | RobotGuy: i'm sure they will be better in another 45-60 days |
| 14:05.09 | RobotGuy | Now I have to clean off my work table to I can finish my circuits for Hammer. I also have some of the TI I2C level shifter chips, so I can wire up a dual voltage I2C bus. I got some samples from Samtec yesterday (http://www.samtec.com) |
| 14:06.10 | RobotGuy | They make all kinds of connectors and pin headers. I got some single row long (usable on my solderless breadboard), some double row right angle and triple row right angle headers. |
| 14:07.39 | g1powermac_PB | RobotGuy: a m68k |
| 14:08.08 | RobotGuy | g1powermac_PB: Hmmmmmmmmm. There are possibilities then. |
| 14:08.21 | g1powermac_PB | yupper |
| 14:09.08 | prpplague | solar: ping |
| 14:09.14 | g1powermac_PB | its also got a z80 in it as the sound controller |
| 14:10.25 | g1powermac_PB | RobotGuy: I'm going to try to get two nvram chips from maxim and use one of their ds89c450's to program the chips from the computer via the serial port |
| 14:10.52 | g1powermac_PB | unfortunately none of my already pretty large collection of nvram chips from maxim are the right size |
| 14:10.59 | RobotGuy | Oh wow, that should be interesting if it works the way you want it to. :) |
| 14:11.33 | RobotGuy | I don't think I have any NVRAM chips. I have some flash chips though. |
| 14:11.52 | g1powermac_PB | (maxim gets a little stingy when giving out their nvram chips, they accidentally sent me a large batch after telling me they weren't going to send them) |
| 14:32.29 | *** join/#edev g1powermac (n=g1powerm@unaffiliated/g1powermac) |
| 14:33.29 | *** join/#edev CosmicPenguin (n=nobody@163.181.251.103) |
| 14:33.30 | *** mode/#edev [+o CosmicPenguin] by ChanServ |
| 14:34.05 | g1powermac | prpplague, just got the stuff from ya |
| 14:34.11 | g1powermac | prpplague, very nice :-) |
| 14:34.22 | prpplague | g1powermac: good deal |
| 14:34.35 | g1powermac | prpplague, btw, what recharges those battery packs, that power brick with the alligator clips? |
| 14:34.50 | prpplague | g1powermac: or the small recarger board |
| 14:35.05 | prpplague | g1powermac: the schematic is up on the wiki |
| 14:35.08 | g1powermac | hmm, which is the recharger board? |
| 14:36.01 | g1powermac | is there a recharger board in this lot? |
| 14:36.14 | prpplague | the one with usb slave port and a barrel jack |
| 14:36.20 | g1powermac | ahh |
| 14:36.45 | g1powermac | nice |
| 14:37.00 | g1powermac | love the framethrower you included :-) |
| 14:37.03 | prpplague | you can charge from either a 1.5A +5v wall wart or via the usb slave port at 500mA |
| 14:37.33 | prpplague | g1powermac: http://www.elinux.org/Lithium_Ion_Charger |
| 14:38.54 | g1powermac | k |
| 14:41.18 | *** join/#edev chouimat|work (n=dieu@209.217.106.98) |
| 14:41.22 | prpplague | hmm, now what is poky doing |
| 14:47.57 | g1powermac | prpplague, very nice lot :-) |
| 14:48.20 | g1powermac | prpplague, guess you'll use your own box to ship my zipit back though |
| 14:48.35 | prpplague | yea |
| 14:48.42 | prpplague | g1powermac: that one was just handy at my desk |
| 14:49.40 | g1powermac | gonna have to replace the headers coming off that bluetooth module |
| 14:49.46 | g1powermac | they're messed up pretty badly |
| 14:49.58 | *** part/#edev T0mW (n=Tom@24.115.218.135.res-cmts.sth.ptd.net) |
| 14:51.35 | *** join/#edev sunrunner20 (n=jamesdoe@pool-71-170-40-118.dllstx.fios.verizon.net) |
| 14:53.41 | g1powermac | can't even really get the foam off of it |
| 14:54.24 | prpplague | g1powermac: oh? |
| 14:54.34 | prpplague | g1powermac: what happened? |
| 14:55.13 | g1powermac | prpplague, the leads coming off the headers are bent pretty badly |
| 14:55.21 | prpplague | ahh darn |
| 14:55.40 | *** join/#edev ico2__ (n=ico2@modem-673.cheetah.dialup.pol.co.uk) |
| 14:55.54 | g1powermac | not sure how in the world that happened when the headers are in antistatic foam |
| 15:00.33 | SpeedEvil | Parcel delivery operatives have Skillz! |
| 15:00.51 | g1powermac | prpplague, I got the headers somewhat back into shape |
| 15:01.07 | prpplague | g1powermac: ahh good |
| 15:01.48 | g1powermac | prpplague, its really strange though, I really don't see how that happened during shipping |
| 15:02.03 | g1powermac | unless it happened on your side |
| 15:02.56 | prpplague | g1powermac: anything is possible when it comes to our shipping department |
| 15:03.32 | g1powermac | the top of the module has a few dents in it too |
| 15:04.29 | g1powermac | prpplague, but yea, besides that, everything looks good |
| 15:05.24 | prpplague | g1powermac: i'll include an additional one when i send your z2 cpu board back |
| 15:05.32 | g1powermac | aww, thanks |
| 15:05.57 | g1powermac | prpplague, I tell ya, it looks like maybe someone stepped on it |
| 15:06.37 | prpplague | g1powermac: hmm |
| 15:06.50 | prpplague | g1powermac: i'll send an extra one, sorry about that |
| 15:07.20 | g1powermac | aww, its alright |
| 15:07.52 | *** join/#edev MothaWork (n=monmotha@mail.forwardengineering.com) |
| 15:09.15 | g1powermac | really wants to fire up one of these backlit char lcds |
| 15:11.49 | g1powermac | prpplague, those char lcds are standard interface, right? |
| 15:11.56 | prpplague | g1powermac: yea |
| 15:12.09 | g1powermac | neat |
| 15:12.10 | prpplague | g1powermac: i;'ve got some datsheets somewhere, let me dig those upf or ya |
| 15:12.53 | g1powermac | kewl, thanks |
| 15:14.23 | *** join/#edev Crofton (n=balister@63.164.30.120) |
| 15:15.00 | prpplague | CosmicPenguin: is there an easy way to list the dependencies that lead to the requirement of a package? |
| 15:17.31 | CosmicPenguin | you can generate graphviz files.. :) |
| 15:22.42 | prpplague | CosmicPenguin: graphviz files? |
| 15:22.45 | prpplague | googles |
| 15:24.21 | prpplague | CosmicPenguin: great 2341 of 2342, failed |
| 15:24.35 | g1powermac | dang: http://hardware.slashdot.org/hardware/08/06/05/1247249.shtml |
| 15:27.15 | CosmicPenguin | what failed - the rootfs? |
| 15:27.19 | prpplague | CosmicPenguin: yea |
| 15:27.35 | CosmicPenguin | heh - long live x86 |
| 15:27.39 | CosmicPenguin | that is a clueless person |
| 15:28.22 | prpplague | CosmicPenguin: index out of range error |
| 15:28.29 | g1powermac | this says it all: http://hardware.slashdot.org/comments.pl?sid=574705&cid=23667789 ;-) |
| 15:29.01 | CosmicPenguin | prpplague: index out of range? cool! |
| 15:29.11 | CosmicPenguin | is it a python error or an error in teh script? |
| 15:29.13 | prpplague | yea thats exactly what i thought |
| 15:29.18 | prpplague | CosmicPenguin: looking now |
| 15:29.26 | CosmicPenguin | g1powermac: cute |
| 15:34.34 | prpplague | CosmicPenguin: http://pastebin.ca/1039574 |
| 15:36.55 | g1powermac | ooo, rc2 of firefox 3 has been released, time to update |
| 15:38.00 | CosmicPenguin | prpplague: ah cool - thats a crash in ipkg-make-index |
| 15:38.03 | CosmicPenguin | you rule! |
| 15:38.11 | prpplague | gee thanks |
| 15:38.14 | g1powermac | heh |
| 15:44.47 | g1powermac | these graphical lcds are pretty neat, prolly not easy to interface to though |
| 15:45.44 | prpplague | g1powermac: yea, they need a controller and some power supplies |
| 15:45.56 | prpplague | g1powermac: most of the newer models have all the power supplies onboard |
| 15:46.47 | g1powermac | might make a pcb that'll let me interface with them over a serial port one day |
| 15:48.07 | g1powermac | prpplague, do you have a suggestion for a controller? |
| 15:49.09 | prpplague | g1powermac: the hammer supports those, but there are a wide range of SoC's with tft support |
| 15:49.19 | g1powermac | k |
| 15:52.32 | *** join/#edev bbradley (n=bbradley@92-235-133-146.cable.ubr17.azte.blueyonder.co.uk) |
| 15:56.07 | prpplague | bangs head on desk |
| 16:01.43 | prpplague | holy freaking !@#!@#, poky completed |
| 16:06.30 | sunrunner20 | wow |
| 16:06.30 | sunrunner20 | http://www.mikeindustries.com/blog/archive/2006/07/wither-the-halogen-torchiere#comment-12894 |
| 16:06.32 | sunrunner20 | hands the man a sign |
| 16:06.53 | sunrunner20 | know what sucks |
| 16:07.04 | sunrunner20 | is the thermal trip on my holagen torch is going bad |
| 16:07.59 | sunrunner20 | don't know where get a new one |
| 16:08.00 | sunrunner20 | :\ |
| 16:08.18 | sunrunner20 | and I REALLY don't think its a good idea to hotwire it to the "on" posistion lol |
| 16:09.12 | SpeedEvil | Hola! |
| 16:09.22 | SpeedEvil | what is the thermal trip? |
| 16:09.28 | SpeedEvil | I mean, polyfuse or what. |
| 16:10.04 | sunrunner20 | dunno |
| 16:10.09 | sunrunner20 | its encased in a metal housing |
| 16:10.24 | sunrunner20 | haven't drilled out the rivets yet |
| 16:10.35 | sunrunner20 | noticed the bulb was dead first :) |
| 16:11.02 | sunrunner20 | but i'll check |
| 16:11.08 | sunrunner20 | my next project |
| 16:11.10 | sunrunner20 | in the mean while |
| 16:11.15 | sunrunner20 | turns down the dimmer a bit |
| 16:12.33 | sunrunner20 | what I would lvoe to do is find a bunch of white LEDs ;) |
| 16:33.32 | *** join/#edev cbrake (n=cbrake@oh-69-34-21-229.sta.embarqhsd.net) |
| 16:33.40 | prpplague | solar: ping |
| 16:43.57 | RobotGuy | Wow, it sure got quiet. |
| 16:45.14 | RobotGuy | sunrunner20: Spark Fun and SuperBrightLEDs are places you should look. They both offer white LEDs. I like the RGB LEDs Spark Fun offers. |
| 16:49.09 | ohsix | the 3w luxeon modules for the maglites are going to blow away anything you could wire up |
| 16:49.49 | sunrunner20 | RobotGuy: i don't need RGB, I need a few hunred bright whites to turn my holgoen torche into a led torch :) |
| 16:51.11 | sunrunner20 | so |
| 16:51.22 | sunrunner20 | cheaper less intense white leds would probally be better |
| 16:54.21 | RobotGuy | g1powermac_PB: Have you seen my RSR designs? |
| 16:54.33 | SpeedEvil | Cree are ratehr brighter than luxeon |
| 16:56.16 | sunrunner20 | cree? |
| 16:56.28 | *** join/#edev ico2__ (n=ico2@modem-673.cheetah.dialup.pol.co.uk) |
| 16:56.53 | SpeedEvil | http://www.cree.com |
| 16:57.00 | SpeedEvil | They make 100lm@1W LEDs |
| 16:57.27 | SpeedEvil | I think 220lm@3W |
| 17:02.31 | sunrunner20 | yea |
| 17:02.35 | sunrunner20 | all of the leds are like |
| 17:02.42 | sunrunner20 | $5 ea |
| 17:04.29 | SpeedEvil | They put out lots more light than normal LEDs though. |
| 17:08.01 | sunrunner20 | Guess I should get a sample of one from somebody |
| 17:08.55 | SpeedEvil | cree send samples |
| 17:09.18 | SpeedEvil | http://www.cree.com/products/xlamp7090_xre.asp#xresalessheets |
| 17:10.11 | ohsix | be ready to close your ups account, because if you ask for one they'll send you 6, billing your account 6 times :] |
| 17:10.36 | sunrunner20 | lol |
| 17:11.13 | SpeedEvil | I got them free. |
| 17:11.26 | ohsix | and they ask you if you need a driver and mount, but they dont provide either |
| 17:11.49 | SpeedEvil | mount is trivial. |
| 17:11.53 | SpeedEvil | Some thermal epoxy |
| 17:11.56 | SpeedEvil | job done |
| 17:12.43 | ohsix | hm they do it differently now |
| 17:13.02 | ohsix | they said they would provide it, thats my only beef |
| 17:13.17 | sunrunner20 | hrm |
| 17:13.21 | sunrunner20 | warm vs cool white |
| 17:13.41 | ohsix | the royal blue ones are insane |
| 17:14.52 | SpeedEvil | Indeed - 45% efficient. |
| 17:15.44 | SpeedEvil | If green were that good, it'd be 250lm/w |
| 17:16.02 | SpeedEvil | Which'd be the most photometrically efficient light source. |
| 17:17.29 | *** join/#edev redb1ue (i=star@ppp131.108-253-207.mtl.mt.videotron.ca) |
| 17:18.12 | sunrunner20 | um |
| 17:18.25 | sunrunner20 | does polarity particularly matter on capacitros |
| 17:18.55 | SpeedEvil | Not on non-polar ones |
| 17:19.04 | SpeedEvil | otherwise, they may hexplode. |
| 17:19.15 | sunrunner20 | >_> |
| 17:19.26 | sunrunner20 | nope, these are tantulum, with clear polarity |
| 17:19.26 | SpeedEvil | (into sixteen little bits) |
| 17:19.38 | sunrunner20 | which I clearly forgot about untill now |
| 17:19.39 | SpeedEvil | In that case, yes. Absolutely. |
| 17:19.43 | sunrunner20 | -_- |
| 17:19.53 | sunrunner20 | and their glued |
| 17:20.00 | sunrunner20 | fun |
| 17:21.14 | SpeedEvil | glued? |
| 17:23.09 | sunrunner20 | yea |
| 17:23.20 | sunrunner20 | in order to get them to stay to solder i glued them in place ^_^ |
| 17:23.24 | sunrunner20 | good idea at the time |
| 17:26.37 | sunrunner20 | PING! |
| 17:26.50 | sunrunner20 | watching the cap fly accros the desk |
| 17:27.25 | sunrunner20 | glues it back on in the CORRECT posistion |
| 17:28.03 | sunrunner20 | no |
| 17:28.04 | sunrunner20 | i throw it out |
| 17:28.29 | sunrunner20 | i soldred both caps neg to pos lol |
| 17:30.01 | prpplague | CosmicPenguin: that parallel/threads option really makes it run faster |
| 17:30.05 | *** join/#edev jdav_gone (n=james@d75-157-13-250.bchsia.telus.net) |
| 17:31.11 | CosmicPenguin | prpplague: yes it does |
| 17:34.19 | prpplague | CosmicPenguin: 323 of 3066 |
| 17:34.31 | prpplague | CosmicPenguin: hopefully this one won't take 3 days |
| 17:35.28 | prpplague | CosmicPenguin: gotta get the m8050 kernel in poky so that it builds |
| 17:36.05 | prpplague | <PROTECTED> |
| 17:39.11 | prpplague | hmm, is there a proc or sys entry to check cpu temp? |
| 17:39.17 | prpplague | for x86 boxes that is |
| 17:39.27 | CosmicPenguin | sure |
| 17:39.53 | agaffney | it'd be under /proc/bus/acpi/... I think |
| 17:39.54 | CosmicPenguin | assuming you have your temperature sensor driver installed |
| 17:40.00 | CosmicPenguin | oh, yeah - ACPI could do it too |
| 17:40.09 | *** join/#edev roxfan2 (n=dunno@202.11-200-80.adsl-dyn.isp.belgacom.be) |
| 17:40.12 | agaffney | ah, just /proc/acpi/... |
| 17:40.59 | agaffney | would the other way be /proc/bus/i2c/... ? |
| 17:41.09 | CosmicPenguin | /sys/class/hwmon |
| 17:42.12 | prpplague | hmm,, i don't see anything under /proc/acpi, probably don't have it enabled |
| 17:45.08 | prpplague | running at 0.0% idle |
| 17:53.09 | RobotGuy | I'll be out for a bit. |
| 17:54.29 | prpplague | wonder what it would sound like if i piped the build log stuff to some audio filter |
| 17:55.48 | prpplague | 556 of 3066 |
| 17:55.56 | prpplague | CosmicPenguin: zipping right along |
| 17:56.20 | CosmicPenguin | it will be better this time because you'll have a lot of the sources |
| 17:56.28 | prpplague | CosmicPenguin: yea |
| 17:57.35 | prpplague | i guess i should have a taball'd the poky trunk before using it |
| 17:59.46 | sunrunner20 | ok |
| 17:59.51 | sunrunner20 | caps fixed |
| 17:59.56 | sunrunner20 | I found better caps anyway |
| 18:03.00 | sunrunner20 | 20v instead of 60 |
| 18:03.04 | *** join/#edev Redhatter (n=vk4fsjl@2001:388:f000:0:0:0:0:279) |
| 18:03.10 | sunrunner20 | so |
| 18:03.13 | sunrunner20 | 22uf |
| 18:03.20 | sunrunner20 | same size |
| 18:03.58 | sunrunner20 | smaller than the otherones acctually |
| 18:04.01 | sunrunner20 | when combined |
| 18:08.55 | prpplague | CosmicPenguin: 848 of 3066 |
| 18:09.01 | prpplague | CosmicPenguin: much faster this time |
| 18:09.44 | prpplague | CosmicPenguin: is there an option to run thru the dependencies and download all needed files without doing any building? |
| 18:12.30 | sunrunner20 | um |
| 18:12.32 | sunrunner20 | i wonder |
| 18:13.17 | sunrunner20 | do any of ya'll ever use the soldering iron to burn off a section of inuslator so you can solder to the middle of a wire? |
| 18:13.35 | prpplague | no |
| 18:13.41 | prpplague | i always strip it |
| 18:13.48 | prpplague | with wire strippers |
| 18:14.21 | sunrunner20 | how can you get it off? its in the middle of the lenght of wire? |
| 18:15.22 | prpplague | sunrunner20: ahh missed the "middle" part |
| 18:15.39 | sunrunner20 | if its the end, I always strip it :) |
| 18:15.43 | sunrunner20 | simpler |
| 18:16.04 | sunrunner20 | I spent 5 minuets trying to figure out how to strip the insulator off |
| 18:16.06 | sunrunner20 | then realized |
| 18:16.07 | prpplague | sunrunner20: i usually use a razor blade to scribe a circle around the wire, then pull the insulation towards the shorted end |
| 18:16.09 | sunrunner20 | its PLASTIC |
| 18:16.14 | prpplague | sunrunner20: then trim |
| 18:16.25 | sunrunner20 | and its REALLY small |
| 18:16.35 | sunrunner20 | and grabed the soldering iron and made the joint as usual |
| 18:16.47 | sunrunner20 | there wasn't enough insulation to pose too much of a problem |
| 18:16.56 | sunrunner20 | it just melted |
| 18:17.11 | prpplague | nasa and it's contractors use all thermal strippers for removing insulation |
| 18:17.25 | sunrunner20 | o.0 |
| 18:18.03 | sunrunner20 | can't have nicks? |
| 18:18.42 | prpplague | nope |
| 18:19.21 | prpplague | CosmicPenguin: over 1/2 way done already |
| 18:20.39 | *** join/#edev Crofton (n=balister@63.164.30.120) |
| 18:36.46 | sunrunner20 | that was |
| 18:36.51 | sunrunner20 | suprisingly unentertaining |
| 18:37.07 | sunrunner20 | killing a bug w/ a soldering iron |
| 18:37.26 | ohsix | that will foul your tip heh |
| 18:37.35 | sunrunner20 | i never acctually touched the bug lol |
| 18:38.04 | sunrunner20 | it died of exposure |
| 18:38.08 | *** join/#edev redb1ue (i=star@ppp239.108-253-207.mtl.mt.videotron.ca) |
| 18:38.09 | *** join/#edev ico2 (n=ico2@modem-673.cheetah.dialup.pol.co.uk) |
| 18:38.39 | sunrunner20 | you would die too if something at >300C and twice your size was that close to you :P |
| 18:39.01 | sunrunner20 | just |
| 18:39.03 | sunrunner20 | not that quickly |
| 18:42.49 | prpplague | ds2: your package shows delivered |
| 18:42.56 | sunrunner20 | cross thow fingers |
| 18:43.02 | sunrunner20 | por favor |
| 18:44.49 | sunrunner20 | woot |
| 18:45.42 | sunrunner20 | although |
| 18:45.50 | sunrunner20 | the voltage is ossilating a little bit |
| 18:45.55 | sunrunner20 | I wonder if thats my fault |
| 18:48.22 | ds2 | prpplague: I saw that. getting it tomorrow morning |
| 18:48.32 | prpplague | ds2: okie dokie |
| 18:48.51 | prpplague | sjhill: you get an email from tincantools about your shipment? |
| 18:48.57 | prpplague | solar: ping |
| 18:49.03 | ds2 | i wish ups didn't require registering to for them to send out email on status change |
| 18:49.05 | prpplague | ~seen solar |
| 18:49.24 | purl | solar is currently on #edev #uclibc. Has said a total of 44 messages. Is idling for 5d 22h 16m 3s, last said: 'Xfbdev with kdrive/minimal support is about 1.2M on arm. Using upx and a few other trick you could probably get it back to the 5-600k range.'. |
| 18:50.47 | *** join/#edev g1powermac_ (n=g1powerm@unaffiliated/g1powermac) |
| 18:51.45 | sjhill | prpplague: nope |
| 18:51.58 | prpplague | sjhill: ok, let me check on it |
| 18:52.08 | prpplague | sjhill: it was suppose to have gone out on monday |
| 18:53.45 | sjhill | prpplague: yikes |
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| 19:16.10 | *** join/#edev steliosk (n=Stelios@85.72.106.75) |
| 19:22.15 | sunrunner20 | um |
| 19:22.16 | sunrunner20 | wth |
| 19:41.28 | sunrunner20 | question |
| 19:41.49 | sunrunner20 | what could be the reason the LDO's output would be above what the voltage devider's output sets it to be? |
| 19:42.38 | sunrunner20 | (default is 1.2, output should be 2.85<something> was reaching 3.25 0.0 ) |
| 20:04.11 | prpplague | hmm,anyone know a quick way to check if a binary was compiled with eabi or oabi? |
| 20:05.05 | sunrunner20 | will acatone destory a chip? |
| 20:05.29 | prpplague | sunrunner20: depends on the chip |
| 20:07.02 | ds2 | rarely unless it is a special sensor |
| 20:07.26 | sunrunner20 | nope |
| 20:07.29 | sunrunner20 | just my LDO |
| 20:07.37 | sunrunner20 | need to clean the glue off of it |
| 20:07.39 | ds2 | should be harmless |
| 20:07.45 | sunrunner20 | ok |
| 20:07.49 | sunrunner20 | into a bath of acatone |
| 20:08.01 | ds2 | now if you got MEK or fuming nitric.... :) |
| 20:08.13 | ds2 | think that's used to open up chips for other purposes |
| 20:08.14 | sunrunner20 | i have MEK :) |
| 20:08.39 | sunrunner20 | that shits awful |
| 20:08.53 | sunrunner20 | instant migraine |
| 20:21.06 | sunrunner20 | 5 minuets in acetone |
| 20:21.15 | sunrunner20 | then pigh purity isopropyl |
| 20:21.19 | sunrunner20 | then dry |
| 20:22.16 | sunrunner20 | then scratch head if still reach 3.5v |
| 20:49.55 | MothaWork | has anybody here happened to use the at91sam7xc (with crypto) series ARM7TDMI uCs? |
| 20:50.21 | prpplague | MonMotha: iirc tomw is using them on a production system |
| 20:50.40 | MothaWork | prpplague: I presume he is using the crypto stuff, then |
| 20:50.53 | prpplague | MonMotha: sorry don't know |
| 20:51.28 | MothaWork | t0mw in #oe, I presume? |
| 21:05.22 | prpplague | MothaWork: he's usually here as well |
| 21:05.23 | *** join/#edev ico2_ (n=ico2@modem-4077.cougar.dialup.pol.co.uk) |
| 21:08.20 | MothaWork | yeah, I found it odd that he wasn't |
| 21:08.23 | MothaWork | he isn't responding to privmsg |
| 21:09.08 | prpplague | MonMotha: probably asleep, he tends to work at night |
| 21:14.39 | MothaWork | perhaps |
| 21:20.48 | MothaWork | I'm having trouble getting an onboard peripheral to work, and google is yielding zero relevant hits |
| 21:23.54 | chouimat|work | bye time to go home |
| 21:26.32 | *** join/#edev sunrunner20|prom (n=jamesdoe@pool-96-226-131-86.dllstx.fios.verizon.net) |
| 21:28.30 | sunrunner20|prom | well |
| 21:28.33 | sunrunner20|prom | that was weird |
| 21:28.51 | sunrunner20 | power outtage |
| 21:29.03 | sunrunner20 | UPS FTW ^_^ |
| 21:43.07 | g1powermac_PB | well, that was fun |
| 21:43.23 | g1powermac_PB | as the final rap up of getting out of the old house, we had to do some painting |
| 21:43.30 | g1powermac_PB | my old lab |
| 21:44.00 | sunrunner20 | and |
| 21:44.03 | *** part/#edev sunrunner20 (n=jamesdoe@pool-96-226-131-86.dllstx.fios.verizon.net) |
| 21:44.04 | *** join/#edev sunrunner20 (n=jamesdoe@pool-96-226-131-86.dllstx.fios.verizon.net) |
| 21:44.06 | sunrunner20 | lol |
| 21:44.14 | sunrunner20 | power went out for a slpit second lol |
| 21:44.17 | sunrunner20 | ^_^ |
| 21:44.26 | SpeedEvil | Do you have a UIPS? |
| 21:45.02 | sunrunner20 | on my desktop :) |
| 21:45.14 | SpeedEvil | Put the modem on it too |
| 21:46.31 | sunrunner20 | this |
| 21:46.33 | sunrunner20 | is annoying |
| 21:46.36 | sunrunner20 | there is a slow |
| 21:46.38 | sunrunner20 | but steady |
| 21:46.44 | sunrunner20 | voltage gain on the regulator |
| 21:48.31 | sunrunner20 | now its ramping up |
| 21:52.08 | *** join/#edev CosmicPenguin (n=nobody@163.181.251.103) |
| 21:52.09 | *** mode/#edev [+o CosmicPenguin] by ChanServ |
| 21:53.08 | sunrunner20 | any ideas people? |
| 21:56.05 | MothaWork | this is an LDO? |
| 21:56.43 | MothaWork | LDOs can get unstable if you don't follow the guidelines for capacitors on input and output. ESR matters more than capacitance in many cases. |
| 21:56.49 | MothaWork | (most in fact) |
| 22:01.31 | sunrunner20 | MonMotha: they say less than 3, and the spec sheet says I have .8 |
| 22:04.09 | sunrunner20 | maby it needs more of a load than just the meter |
| 22:05.01 | sunrunner20 | goes and gets a megaresistor |
| 22:05.47 | sunrunner20 | and, they say "as low as 10uF |
| 22:05.53 | sunrunner20 | i'm using 22uF |
| 22:19.47 | sunrunner20 | hey |
| 22:19.50 | sunrunner20 | instead of a diode |
| 22:20.18 | sunrunner20 | I can use a silicon um |
| 22:20.21 | sunrunner20 | i forgot what their called |
| 22:20.28 | SpeedEvil | breast implant? |
| 22:21.07 | sunrunner20 | no |
| 22:21.11 | sunrunner20 | they go CLICK clak |
| 22:21.21 | SpeedEvil | woodpecker? |
| 22:21.25 | sunrunner20 | no |
| 22:21.43 | SpeedEvil | relay. |
| 22:21.50 | sunrunner20 | yea |
| 22:21.52 | sunrunner20 | relay |
| 22:22.03 | sunrunner20 | it cuts the power from the batteries |
| 22:22.16 | sunrunner20 | and sends in power from LDO |
| 22:33.25 | *** join/#edev sunrunner20|prom (n=jamesdoe@pool-71-170-248-168.dllstx.fios.verizon.net) |
| 22:48.59 | MothaWork | sunrunner20: most LDOs, but not all, are capable of regulating to 0 output current. Try putting a moderate load (a few mA) on it |
| 22:49.07 | *** join/#edev RobotGuy (n=robotguy@dsl093-038-072.pdx1.dsl.speakeasy.net) |
| 22:49.45 | MothaWork | if you're operating it within specs, it shouldn't drift noticeably |
| 22:49.54 | MothaWork | it'll drift a tiny bit due to tempco |
| 22:52.12 | sunrunner20|prom | kk |
| 22:52.17 | sunrunner20 | ok |
| 22:52.49 | sunrunner20 | how close to ground do the caps need to be? |
| 22:52.53 | sunrunner20 | not very? |
| 22:53.32 | MothaWork | the input and output caps should be as close to the regulator as possible and should have very good connections to your power and ground planes/busses |
| 22:53.54 | MothaWork | now, "as close as possible" doesn't necessarily mean it won't work if you have some inches in there, but try to avoid inductance |
| 22:55.28 | sunrunner20 | how do you avoid inductance |
| 22:56.10 | SpeedEvil | You use non-inductive wire. |
| 22:56.20 | SpeedEvil | It's on the shelf next to the perpetual motion machines. |
| 22:56.30 | sunrunner20 | da da chhhh |
| 22:56.35 | SpeedEvil | However. |
| 22:56.45 | MothaWork | basically try to avoid loops |
| 22:56.53 | SpeedEvil | The concern is that an LDO is an amplifier. |
| 22:57.02 | MothaWork | yes, yes it is |
| 22:57.12 | MothaWork | that's why they can oscillate |
| 22:57.20 | MothaWork | amplifiers oscillate and oscillators amplify |
| 22:57.44 | MothaWork | an oscillator is nothing more than an amplifier with 180 degree positive feedback applied |
| 22:57.52 | SpeedEvil | If you manage to get the external circuit setup so that it provides enough inductance/capacitance in it - 'enough' varies with the bandwidth of the LDO - it can oscillate. |
| 22:58.28 | MothaWork | modern LDOs are pretty stable, though |
| 22:58.31 | MothaWork | and well documented, too |
| 22:58.34 | SpeedEvil | Yeah. |
| 22:58.39 | SpeedEvil | You can do it if you try. |
| 22:58.46 | SpeedEvil | Or if you have the skills :) |
| 22:58.51 | MothaWork | well sure |
| 23:01.27 | ds2 | what LDO is this? and is this known as a well behaved LDO |
| 23:04.23 | SpeedEvil | And now on HBO - LDOs behaving badly. |
| 23:06.30 | ds2 | 'a whiny little thing' |
| 23:07.43 | MothaWork | I've never had an LDO audibly whine on me |
| 23:07.48 | MothaWork | switchers yes, but not LDOs |
| 23:07.57 | sunrunner20 | LT1965 |
| 23:08.24 | MothaWork | hum, lots of LT's parts need pretty careful compensation |
| 23:08.31 | sunrunner20 | compensation? |
| 23:08.53 | MothaWork | picking your input and output caps |
| 23:09.04 | MothaWork | capacitance, ESR, parallel resistance, and such |
| 23:09.33 | ds2 | FWIW, I have had NSC LDO's that are as well behaved as a 78L05 (both in TO92) |
| 23:11.26 | MothaWork | I've had some from TI and ON that are very well behaved as well |
| 23:11.48 | sunrunner20 | can you breadboard LDO's? |
| 23:12.34 | MothaWork | with some care, yes |
| 23:13.02 | MothaWork | breadboards have lots of stray inductance and capacitance, and relatively high connections resistance compared to soldered joins |
| 23:17.49 | MothaWork | going home |
| 23:18.51 | sunrunner20 | maby |
| 23:20.41 | sunrunner20 | they really want 10uf |
| 23:20.42 | sunrunner20 | so |
| 23:20.45 | sunrunner20 | i'll do 10uf |
| 23:20.54 | sunrunner20 | grabs his reel of 10uf |
| 23:21.14 | sunrunner20 | ya'll think thats it |
| 23:21.26 | sunrunner20 | they have an esr of 1.8 instead of .8 |
| 23:21.27 | *** join/#edev ico2_ (n=ico2@modem-4077.cougar.dialup.pol.co.uk) |
| 23:22.41 | sunrunner20 | also |
| 23:22.51 | sunrunner20 | for the resistor devider |
| 23:23.00 | sunrunner20 | should I be in the K range? |
| 23:23.09 | sunrunner20 | or sub k-ohm range? |
| 23:24.00 | sunrunner20 | my understanding is "less is better" because Linear Technology recommends that |
| 23:24.00 | sunrunner20 | R1s value be less than 12.1k to minimize output voltage |
| 23:24.00 | sunrunner20 | errors due to the ADJ pin bias current |
| 23:37.58 | MonMotha | sunrunner20: generally "about 1k" is good for feedback dividers like that |
| 23:38.16 | sunrunner20 | :\ |
| 23:38.17 | MonMotha | you don't normally want to go much less, but going about 5k or so can lead to bias error |
| 23:38.38 | sunrunner20 | i've got a 330 and a 240 ohm resistor lol |
| 23:39.02 | MonMotha | those are a bit small. They'll work, but watch the power dissipation |
| 23:39.25 | sunrunner20 | I did |
| 23:39.36 | sunrunner20 | the current was something like 1.3uA |
| 23:39.43 | sunrunner20 | and they are 1/16watt |
| 23:43.06 | sunrunner20 | though |
| 23:43.16 | sunrunner20 | they are 5% and not 1% :\ |
| 23:44.34 | *** join/#edev sunrunner20|prom (n=jamesdoe@pool-71-170-10-48.dllstx.fios.verizon.net) |
| 23:44.36 | *** join/#edev seaship (i=seaship@12.174.138.44) |
| 23:44.42 | *** join/#edev seaship1 (i=seaship@12.174.138.44) |
| 23:45.06 | sunrunner20|prom | btw |
| 23:45.08 | sunrunner20|prom | I would put the modem on ups |
| 23:45.10 | sunrunner20|prom | but I can't |
| 23:45.17 | seaship | hellow |
| 23:46.24 | seaship | i want to understand how to use satelites with out paying |
| 23:46.57 | seaship | wanting free TV and internet |
| 23:48.17 | SpeedEvil | Find someone nearby with service. |
| 23:48.27 | SpeedEvil | Kill them and steal their equipment. |
| 23:48.32 | seaship1 | how |
| 23:48.40 | seaship1 | cant do that |
| 23:48.47 | SpeedEvil | Why not? |
| 23:48.55 | seaship1 | want free but not that bad |
| 23:49.12 | seaship1 | i was looking at free to air |
| 23:49.17 | SpeedEvil | You're really undecided about this whole legality thing aren't you. |
| 23:49.23 | SpeedEvil | Ah. |
| 23:49.34 | SpeedEvil | Where are you? |
| 23:49.58 | seaship1 | well its one thing to screw a big company but the small guy |
| 23:49.59 | SpeedEvil | there are no free internet satellite providers, owing to the fact that satellites are bloody expensive. |
| 23:50.12 | CosmicPenguin | also, they are hard to install |
| 23:50.20 | seaship1 | very expensive |
| 23:50.29 | seaship1 | well how about free to air |
| 23:50.35 | SpeedEvil | What country are you in? |
| 23:50.41 | seaship1 | usa |
| 23:50.57 | seaship1 | how about u |
| 23:51.03 | SpeedEvil | UK. |
| 23:51.16 | SpeedEvil | freesat would be appropriate in the UK |
| 23:51.20 | SpeedEvil | but not USA |
| 23:51.43 | seaship1 | god damn freinds tell me uk has it wores then us |
| 23:51.59 | MonMotha | in general, there is more FTA satellite TV in europe than the USA |
| 23:52.09 | MonMotha | and non-FTA can be done with any equipment using the proper CAMs |
| 23:52.20 | MonMotha | in the USA, for-pay sat TV pretty much ties you to the set-top of the provider |
| 23:52.32 | MonMotha | and FTA is limited and requires a large C-band dish |
| 23:52.48 | seaship1 | well that is because the usa is slipping at everything |
| 23:53.01 | seaship1 | c band is old sat right |
| 23:53.20 | MonMotha | the older satellite TV systems did use C-band, yes |
| 23:53.26 | MonMotha | most of the newer "small dish" ones are Ku |
| 23:53.32 | sunrunner20 | any recomendations on how to ground the connections to the single leg package? |
| 23:53.54 | sunrunner20 | small twist them all together and solder at once? |
| 23:54.00 | seaship1 | will they work in the usa |
| 23:54.10 | seaship1 | hell no |
| 23:54.26 | SpeedEvil | seaship1: see |
| 23:54.27 | SpeedEvil | http://www.tech-faq.com/free-to-air-satellite.shtml |
| 23:54.35 | sunrunner20 | *singlel leg of the package |
| 23:54.48 | MonMotha | also lyngsat |
| 23:54.52 | seaship1 | one minute i write it down |
| 23:54.53 | MonMotha | or lingsat, whichever it is |
| 23:55.12 | MonMotha | I should point out that this is all very off-topic for this channel |
| 23:55.22 | SpeedEvil | Yeah |
| 23:55.31 | CosmicPenguin | To the Nth degree |
| 23:55.32 | CosmicPenguin | plus 1 |
| 23:55.41 | SpeedEvil | This is for repurposing small devices with microprocessors |
| 23:55.51 | SpeedEvil | I don't like the topic. |
| 23:56.08 | SpeedEvil | Or is this for hacking kettles too? |
| 23:56.17 | seaship1 | well sorry won't ask no more |
| 23:56.45 | seaship1 | any chat room that do this kind of chat |
| 23:56.49 | SpeedEvil | I don't jow of a consumer electronics channel. |
| 23:56.56 | SpeedEvil | know |
| 23:58.05 | seaship1 | what would be the reason for messing with small microprocessors |
| 23:58.30 | CosmicPenguin | why not? |
| 23:58.34 | SpeedEvil | To make robotic vacuum cleaners into small robots for example, with webcams. |
| 23:58.53 | seaship1 | i see that makes sence |
| 23:58.54 | MonMotha | because small microprocessors are in freaking everything these days |
| 23:59.27 | seaship1 | that is true i, i just don't know nothing on how to tamper with them |
| 23:59.48 | SpeedEvil | The very cheapest stuff is usually impossible. |
| 23:59.58 | seaship1 | they do run the world |