Back
[03:59:27] <Jak_o_Shadows1> rue_bed - How were your ADC slave devices working agian?
[04:03:07] <Jak_o_Shadows1> It was chained SPI on a Atmega something?
[09:32:45] <rue_house> I'm only using 1 so far
[09:33:01] <rue_house> you signal you want a result and then shift it out
[09:33:28] <rue_house> its a bit strnage to get around the fact that the tiny26 dosn't have a proper spi system
[09:33:55] <rue_house> how about I post the code, remind me in 9 hours?
[12:23:48] <fishbulb> does anyone here use pixhawk for "robots" ?
[12:30:45] <fishbulb> a UAV is techncally a robot, right?
[12:32:27] <deshipu> depends
[12:38:04] <anniepoo> sure
[12:43:41] <fishbulb> is anyone here aware of "pixhawk"
[12:43:58] <fishbulb> the flight/driving/whatever controller for autonomous... things
[13:00:42] <anniepoo> I'm aware of it. that's the extent of what I know
[13:00:46] <anniepoo> 8cD
[13:01:15] <anniepoo> WHoot! order arrived from adafruit, I can wire up my treads
[13:09:51] <zhanx> fishbulb: wow 200 for that, thats expensive
[13:29:46] <z64555> That's a fair price, actually
[13:32:22] <z64555> RC electronics tends to be a bit pricey, as compared to mass produced electronics
[13:33:56] <robopal> why is that now
[13:34:05] <zhanx> z64555: yea but we can make one cheaper
[13:34:29] <robopal> I wonder if prices will drop now with the drones boosting the sales
[13:34:33] <anniepoo> takes roughly the same amount of time for an engineer to design a specialized board that's only used once or a consumer item made in the millions
[13:34:44] <zhanx> robopal: less demand, so the runs are smaller. they might sell 10,000 but in only 1,000 art runs
[13:35:00] <zhanx> part not art
[13:35:34] <anniepoo> I constantly get absurd requests to make 10 of something at a $2 price...
[13:35:43] <z64555> yeah, that aint habbenin
[13:36:38] <zhanx> 20 bucks and my screen saver doesn't even turn off
[13:36:59] <anniepoo> I had somebody ask me to duplicate a lock that sells for $5 for 3 of them on amazon... and wanted 100 of them, under $5 cost...
[13:37:08] <anniepoo> uh huh
[13:38:35] <anniepoo> ooh, just found a slightly nifty trick for soldering on components
[13:38:50] <z64555> SMD's?
[13:38:58] <anniepoo> in this case an extension header for a GPIO on a Pi HAT
[13:39:25] <z64555> hm, whats the trick?
[13:39:41] <anniepoo> it's always a nuisance to get the part mechanically held upright while you solder the first couple pins
[13:39:55] <z64555> right
[13:40:14] <anniepoo> I've wrapped a rubber band around the board. Holds the part against the board
[13:40:42] <zhanx> i use spring clamps
[13:41:16] <z64555> what about a few drops of water
[13:41:20] <anniepoo> thats what I was doing. And I made 4 wedges from hardwood, use those to prop the board's edges
[13:41:27] <zhanx> no worries about popping the rubber band with the soldering iron
[13:41:49] <anniepoo> the water's a good idea for tiny SMT
[13:41:55] <anniepoo> this is a big 2x20 header
[13:42:14] <z64555> ah
[13:42:42] <z64555> I guess you could make some stands out of a dupont connector
[13:43:02] <z64555> like if you have a 2x, use a 3x or 4x connector and fill the outside rows with a pin
[13:43:47] <anniepoo> I have a couple mini battery clamps that work well for some things
[13:44:19] <anniepoo> and a cross tweezer, intended as heat sink, I think, that works for some jobs
[13:44:30] <anniepoo> but didn't have a good solution for big parts like this
[13:44:56] <anniepoo> the wedges work, but are honestly kind of a PITA, it's easy to bump the setup
[13:45:46] <zhanx> anniepoo: harbor freight, like 5 bucks in clamps
[13:48:52] <anniepoo> oh, I'm in our engineering shop, we've got probably 400 clamps of various sorts
[13:49:45] <anniepoo> heck, if I was soldering lots of them, we'd CNC router a jig
[13:50:40] <anniepoo> Oooh, that's another possiblity though - take a wad of polycaprolactone and make a jig by squishing on the board
[13:51:01] <anniepoo> aybe with some al foil to keep it from mechanicially locking under something
[14:00:11] <z64555> that pink electrostatic foam stuff?
[14:01:27] <z64555> hm, says PLC softens at 60C, though
[15:16:24] <anniepoo> doh, that's true - polycaprolactone's going to remelt...
[15:16:55] <orlock> Of course it is!
[15:17:19] <orlock> Eurgh. Got home last night, got kids asleep, went to bed, wake up, rush to work..
[15:17:39] <orlock> Stocktake, and i'm the only IT systems person around to provide support
[15:18:00] <orlock> Gotta get all of the parts for the robots counted so they can get back to building
[15:20:00] <zhanx> orlock: is having a busy day
[15:20:35] <orlock> busy few days - some of the people in accounts have been sending me emails at 2:30am durning the holidays
[15:21:00] <zhanx> i am learning stm32 the hard way
[15:21:05] <orlock> happy new year zhanx
[15:21:07] <orlock> hows things?
[15:21:21] <zhanx> happy new year to you
[15:21:29] <zhanx> and busy with the kids etc
[15:23:10] <zhanx> ok digikey order is here!
[15:24:17] <orlock> fucking hell, i went to sleep at like, 9:30pm last night
[15:24:31] <orlock> managed to turn off my alarm without waking at 5am, got up at 6am
[15:24:35] <orlock> in the office by 7am
[15:24:41] <orlock> still tired
[15:30:00] <orlock> zhanx: what are you making with the stm?
[15:31:55] <zhanx> omnidirectional sound detection
[15:33:45] <orlock> ahh, funky - the sort with multiple microphones and the time difference calculation?
[15:34:59] <zhanx> yep
[15:49:30] <zhanx> well i can detect sounds (its not even close to being right)
[19:02:41] <anniepoo> 8cD treads wired up. I'm doing this between bouts of actual work, so I'll do the software in an hour or two
[20:05:41] <anniepoo> aaand... I just moved the left tread
[20:05:43] <anniepoo> 8cD
[22:29:35] <anniepoo> anybody know how to read a keypress on an RPi3 in python?
[22:30:42] <anniepoo> sys.stdin.fileno() doesn't exist
[22:30:46] <anniepoo> 8cP
[22:34:57] <zhanx> still dont have a rpi yet :(
[23:05:14] <Jak_o_Shadows1> input()?
[23:59:20] <rue_house> it works!
[23:59:51] <zhanx> rue lives