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| 16:41.54 | CosmicPenguin | prpplague: ping |
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| 16:47.33 | prpplague | CosmicPenguin: pong |
| 16:48.34 | prpplague | CosmicPenguin: what up? |
| 16:50.22 | CosmicPenguin | never mind |
| 16:50.33 | prpplague | CosmicPenguin: hehe |
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| 18:31.53 | CosmicPenguin | prpplague: okay, this time for real I have a question |
| 18:32.09 | Spida | 42 |
| 18:32.27 | prpplague | CosmicPenguin: ok |
| 18:33.00 | CosmicPenguin | What would you use if you wanted to control these from a beaglebone: http://www.adafruit.com/products/357 |
| 18:33.43 | CosmicPenguin | It would be straight forward enough to connec them to an arduino, but then I would need to control the arduino from the beaglebone |
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| 18:35.10 | prpplague | CosmicPenguin: looking |
| 18:37.51 | prpplague | CosmicPenguin: should be able to connect it up basically in the same way as the arduino tutorial |
| 18:38.17 | prpplague | CosmicPenguin: http://www.ladyada.net/products/rgbledstrip/ |
| 18:38.22 | prpplague | CosmicPenguin: basically the same |
| 18:38.28 | CosmicPenguin | there are analog out pins on the beagle bone? |
| 18:38.34 | prpplague | CosmicPenguin: only difference is the bone is at 3.3V |
| 18:39.58 | prpplague | CosmicPenguin: iirc there are several on the pinmux |
| 18:40.06 | prpplague | looks |
| 18:40.15 | CosmicPenguin | I need a lot |
| 18:40.31 | prpplague | CosmicPenguin: or you can do pwm |
| 18:40.40 | prpplague | CosmicPenguin: how many? |
| 18:40.56 | CosmicPenguin | 6 probably |
| 18:41.11 | prpplague | hehe |
| 18:41.33 | prpplague | CosmicPenguin: what kind of timing are you looking at for changing the values? |
| 18:42.22 | CosmicPenguin | I would say maybe 50ms? |
| 18:42.54 | CosmicPenguin | I can't remember what the analog out delay is on the arduino |
| 18:45.55 | prpplague | CosmicPenguin: you could use the ws2801 chip with those lights or you could get a rgb chain with them integrated |
| 18:46.09 | prpplague | CosmicPenguin: http://www.sparkfun.com/products/10312 |
| 18:46.22 | prpplague | CosmicPenguin: a little more expensive, but a lot more versital |
| 18:47.26 | CosmicPenguin | I'm just looking for on and off at this point |
| 18:47.50 | prpplague | CosmicPenguin: oh |
| 18:48.03 | CosmicPenguin | Maybe in the future I'll get more jiggy wit it |
| 18:48.07 | prpplague | CosmicPenguin: then you don't need to worry about adc , just use it as gpio |
| 18:48.22 | prpplague | CosmicPenguin: the adc or pwm is to control brightness |
| 18:49.18 | CosmicPenguin | How do you handle the 3.3v vs 5v issue? |
| 18:49.33 | prpplague | CosmicPenguin: not really an issue, you are going through the mosfet |
| 18:49.42 | CosmicPenguin | the mosfet can handle it? |
| 18:50.29 | prpplague | CosmicPenguin: yea that is what it is designed for |
| 18:50.32 | CosmicPenguin | Okay, this is all good to know |
| 18:50.53 | CosmicPenguin | I could do an arduino with a ethernet shield - advantage is that it is more flexible where it can be put |
| 18:51.02 | CosmicPenguin | disadvantage is that the latency will be worse |
| 18:51.16 | prpplague | CosmicPenguin: think of a mosfet is kind of like a relay, use one voltage to turn it on/off, which keeping the switch portion seperate |
| 18:51.25 | CosmicPenguin | Okay |
| 18:51.31 | CosmicPenguin | Excellent, I'm excited to try this out |
| 18:51.38 | CosmicPenguin | stupid adafruit, get a beaglebone in stock |
| 18:51.59 | CosmicPenguin | you know much about playing with AC? |
| 18:52.41 | prpplague | CosmicPenguin: only that AC wires are fun to touch |
| 18:52.53 | prpplague | CosmicPenguin: brb, need to grab some lunch before the cafeteria closes |
| 18:52.59 | CosmicPenguin | I'm reading about how to do relays, and some tutorials hook up christmas lights directly |
| 18:53.22 | CosmicPenguin | but the relay manufactuer recommends a RC snubber, and I can't figure out if that is required, recommended or optional for the load I'm doing |
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| 19:35.35 | MonMotha | CosmicPenguin: AC is fun. If you're just playing around, I'd recommend sticking with off-the-shelf assemblies designed to safely switch it e.g. relays and monolithic SSRs |
| 19:35.50 | MonMotha | but if you want to blow some stuff up, you can play with Triacs and such |
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| 19:37.21 | MonMotha | if you wan to do phase angle control, you can get yourself a "non zero cross" SSR. Just feed the AC line into a transistor input optoisolator (with a big resistor, of course) to get the phase reference. |
| 19:37.57 | MonMotha | I've done tricks before on isolated AC or on devices that can float relative to AC ground using just a couple of 1Mohm resistors and letting the input diodes on the chip clamp it...not really recommended, though :) |
| 19:50.10 | CosmicPenguin | I'm using this: http://www.sparkfun.com/products/9526 |
| 19:50.13 | CosmicPenguin | so lots of relays |
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| 20:16.32 | MonMotha | CosmicPenguin: seems straightforward |
| 20:16.50 | MonMotha | mechanical relays don't generally need much in the way of snubber circuits and such except on exceptionally inductive loads |
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| 20:23.06 | CosmicPenguin | sweet |
| 20:23.59 | CosmicPenguin | no electric motors or anything...... yet |
| 21:48.19 | landley | prpplague: you around? |
| 21:49.09 | prpplague | landley: more like asquare |
| 21:53.35 | landley | I'm pondering relicensing toybox under a BSD/MIT style license. You contributed chvt so I have to either rewrite that or ask. Are you ok with the relicense? |
| 21:54.07 | landley | Basically Tim Bird poked me and went "there's interest in something better than toolbox among the android guys" and I went "well duh". |
| 21:54.52 | landley | But they're terrified of busybox both because they can't distinguish gplv3 from gplv2 (sigh) and because I enforced the license once using the same legal crew that went on to sue Cisco out of the Linux business entirely (sigh). |
| 21:55.11 | landley | Thank you, SFLC and FSF. Grrr. |
| 21:56.33 | landley | From my point of view, having an actual _reason_ to work on toybox is not a bad thing. |
| 21:57.16 | landley | I'm not a fan of BSD licensing but I can probably do some kind of trademark thing saying "to use the trademark, either use unmodified vanilla version or document your changes from it, otherwise rename your project"... |
| 21:58.05 | landley | Although to be honest, the Jar Jar Binks of licenses has made me less of a fan of the classic version. A bit like the second two matrix movies' impact on the first one. |
| 21:59.56 | landley | prpplague: poke. |
| 22:00.11 | prpplague | landley: sorry, let me read the scrool |
| 22:00.37 | prpplague | landley: fine with me |
| 22:00.48 | prpplague | landley: i am all for having toybox replace toolbox |
| 22:01.06 | kergoth | that would be interesting |
| 22:01.18 | prpplague | landley: busybox has gotten to be a nightmare |
| 22:02.37 | MonMotha | landley: you could always just make people credit the Regents of California for your work |
| 22:14.18 | CosmicPenguin | there is some hidden config that is automounting USB keys on my XFCE desktop and that makes me not happy |
| 22:14.30 | CosmicPenguin | I have all the visible configs unchecked and it still automounts |
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| 22:37.42 | landley | prpplague: yay! |
| 22:37.46 | landley | MonMotha: no. |
| 22:41.21 | prpplague | landley: you have my approval, let me know if you need an email |
| 22:41.31 | prpplague | landley: i'd love to hack on toybox again |
| 22:41.35 | prpplague | bbiab |
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