#avr Logs

Dec 27 2018

05:07 AM [1]MrMobius is now known as MrMobius
02:37 PM rue_mohr: I wonder if anyone is interested in the 30 min timer code
02:47 PM nohit: is it asm ?
02:52 PM rue_mohr: nope, C for t13
02:52 PM rue_mohr: input is a button, output is high for 30 mins after button does up
02:53 PM rue_mohr: and no, a 555 does not work reliably
02:53 PM rue_mohr: tho a 4040 might have
02:55 PM nohit: maybe you can start a 30min timer business
02:55 PM cehteh: whats so special about that? :)
02:57 PM rue_mohr: its already done
03:01 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/30mintimer/p1100867.jpg
03:01 PM rue_mohr: it installed quite nicely
03:02 PM rue_mohr: (yes, I added a pullup on the reset)
03:02 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/30mintimer/p1100870.jpg nice of them to seperate the power and control boards
03:02 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/30mintimer/p1100866.jpg
03:04 PM rue_mohr: http://ruemohr.org/~ircjunk/projects/30mintimer/p1100867.jpg
03:05 PM rue_mohr: i was amuzed that the whole circuit fit within the footprint of the button
03:05 PM rue_mohr: rue
03:05 PM rue_mohr: yes?
03:05 PM rue_mohr: your the only one here...
03:05 PM rue_mohr: damnit!
03:14 PM cehteh: :D
03:15 PM cehteh: i got the 1.20Eur stepper motor today, playing with that
03:20 PM rue_mohr: little round one?
03:20 PM cehteh: https://twitter.com/i/status/1078324011224969222
03:20 PM cehteh: w/ uln2003 driver
03:20 PM rue_mohr: yep
03:20 PM rue_mohr: unipolar
03:20 PM cehteh: yep
03:21 PM cehteh: have to adapt my code for that, well its just testing/playing .. the real thing later has big beefy 3Phase steppers and real drivers
03:21 PM cehteh: still fun to play and may have some use
03:22 PM rue_mohr: I have a t13 step generator
03:22 PM rue_mohr: iirc
03:22 PM rue_mohr: but its only forward
03:22 PM rue_mohr: cause, pincount
03:22 PM cehteh: huh?
03:22 PM rue_mohr: 4 pins for the phases, 1 for step, and one for reset
03:22 PM cehteh: you only need 4 pins
03:22 PM cehteh: ah
03:23 PM cehteh: abuse reset the way i always do
03:23 PM cehteh: whenever it wakes up from reset, check the 'step' pin and use it as direction for all futher steps
03:24 PM cehteh: so you need to reset for direction change
03:30 PM rue_mohr: I just leave reset alone, those things are tooo pricey to end up needing a high votlage programmer for
03:33 PM cehteh: did you read what i saied?
03:33 PM rue_mohr: yes
03:33 PM cehteh: .. no need to disable reset for that
03:34 PM rue_mohr: I know
03:34 PM rue_mohr: its like using square tires on your car
03:34 PM cehteh: besides t13 is less than 1 eur
03:34 PM rue_mohr: just get better shocks
03:34 PM rue_mohr: $0.5 for the t13, $58 shipping
03:34 PM cehteh: where do you live?
03:35 PM rue_mohr: actaully, the last few t13's I got were almost $1 ea
03:35 PM rue_mohr: canada
03:35 PM rue_mohr: (earth)
03:35 PM cehteh: tzz
03:35 PM rue_mohr: if you can get people to understand what your talking about, they can tell you they cant get it
03:36 PM cehteh: i meant 1Eur at worst ... with some luck you get them w/o shipping costs as well
03:36 PM rue_mohr: everything rom china is now $6 to $58 shipping
03:37 PM cehteh: shit :D
03:37 PM cehteh: this stepper was 1.20 Eur *with* shipping!
03:39 PM cehteh: tiny13 is 1.86 on amazon w/ shipping 5pcs
03:39 PM rue_mohr: http://ruemohr.org/~ircjunk/images/china-shipping-arg.png
03:39 PM cehteh: err 2.86
03:39 PM rue_mohr: just incase you dont beleive me
03:39 PM cehteh: you didnt even elect trump :D
03:39 PM rue_mohr: and, no there basically aren't any sellers with cheaper shipping options
03:40 PM rue_mohr: so ~$4 ea
03:40 PM cehteh: hey plan: i can send you some for $50 hahaha
03:41 PM rue_mohr: thanks, I got a bunch of stock when I saw things starting to slip
03:44 PM rue_mohr: ;) I sent the seller the image, said "sorry, I cannot buy today!"
03:45 PM cehteh: https://www.aliexpress.com/item/Discount-price-hand-jointer-machine-with-spiral-cutter-head/32921286940.html
03:45 PM cehteh: we had that yesterday in ##woodworking :D
03:45 PM cehteh: now *thats* shipping costs
03:48 PM nohit: you can get free shippin g if you order over 20$ worth of parts at Arrow
03:49 PM nohit: 50$ on mouser
03:50 PM vmt: cehteh: oh no, are you one of those bicycle-hifi-people?
03:52 PM cehteh: hifi?
04:05 PM vmt: well, bicycle enthusiasts, i.e. people heavily invested into... biking i figure
04:05 PM cehteh: well kinda, i have no car at least
04:05 PM vmt: you know, the slightest nuances are emphasized (and amplified)
04:06 PM cehteh: but i dont overdo it
04:06 PM vmt: i like that!
04:06 PM vmt: i have some negative vibes on the subject from a couple of friends, heh
04:06 PM cehteh: becasue of the roadbike on twitter?
04:07 PM cehteh: i am thinking about getting that, wouldbe my first one
04:08 PM cehteh: well i ride a lot as long its fun .. i have a cheap and an expensive bike .. so material just needs to be for the purpose thats all
04:09 PM vmt: cool, i used to know two dudes who were seemingly building their bikes constantly
04:09 PM cehteh: actually i was thinking about getting an ultra cheap trash roadbike just to drop the guys who have 5K Eur bikes for fun
04:09 PM vmt: and it seemed to me they spent ridiculous amounts of cash in it
04:10 PM cehteh: after all bike is only as good as its rider :D
04:10 PM vmt: hahah, maybe so :D
04:10 PM cehteh: well if someone can afford an expensive bike, his fun .. i wont argue, as long he doesnt shun others cheaper bikes
04:11 PM cehteh: and the better when he actually rides it competently
04:11 PM vmt: things taken to their extremes with minimal gains / diminishing returns, psychological effects seem to play a bigger part
04:12 PM cehteh: well the one you see on twitter is relative expensive, but also for sale 1000eur off because it was expensive ... and really nice otherwise
04:12 PM cehteh: for me that means 20kg less to carry up the mountains thats really something :D
04:13 PM vmt: is the body cf or something?
04:13 PM cehteh: yes
04:13 PM cehteh: thats about 7kg as is
04:13 PM vmt: wellp, i figure cf costs
04:13 PM cehteh: my other bike is 18kg .. kinda tank
04:13 PM cehteh: (w/ heavy lock)
04:14 PM cehteh: and then i ride with big backpack .. so easily have 20kg more to carry than on a roadbike
04:14 PM vmt: yeah, well it just seemed to me my buddies were more interested in building their bikes rather than riding them, but oh well. i guess there's fun in that, too
04:14 PM cehteh: yeah sure
04:14 PM vmt: speaking of, i really should get a bike for next summer
04:14 PM cehteh: well i do both, but i prefer riding
04:14 PM cehteh: 200km over the mountains on summer days
04:15 PM vmt: that sounds pretty hella.
04:15 PM cehteh: https://pbs.twimg.com/media/DmMzC5CX0AAG_mG.jpg ... that was Madeira vacation ... and its really steep there:
04:15 PM cehteh: https://pbs.twimg.com/media/DmcEg9JXgAEyUGH.jpg
04:16 PM cehteh: that road was 9km ... from almost sea level to 1600m
04:16 PM vmt: doesn't that say 1810
04:16 PM cehteh: yeah another tour
04:16 PM cehteh: just close by
04:17 PM vmt: i wonder how much air pressure drops at ~2 km asl, like 20%?
04:17 PM cehteh: dunno, but i notiuced ith when breathing
04:17 PM vmt: yeah, was just thinking
04:18 PM cehteh: here at home we have mountains only bit higher than 1km
04:18 PM vmt: where's home?
04:18 PM cehteh: germany karlsruhe ... black forrest is close by
04:20 PM vmt: mmm, well it's just a few 100s of km south to the swiss alps no?
04:20 PM cehteh: yeah
04:20 PM cehteh: well other side are the vosges as well
04:20 PM cehteh: and since the rhine valley is at 100m we have some passes which can compete with the alps
04:21 PM vmt: oh yeah
04:22 PM cehteh: https://www.google.de/maps/@48.5987149,8.2081078,273a,35y,295.15h,76.47t/data=!3m1!1e3
04:23 PM vmt: should do some kind of a central european tour, from up north over here, drive via baltica down to poland and germany from there
04:23 PM cehteh: well nohing competes with madeira :D steepest street was 39% iirc :) ... and no i didnt ride, i shoved the bike
04:23 PM vmt: haha
04:25 PM cehteh: you are where?
04:25 PM vmt: finland
04:25 PM vmt: no mountain ranges of mention around here...:)
04:26 PM cehteh: ok :D .. but mosqitos
04:26 PM cehteh: http://brouter.de/brouter-web/#map=15/32.7084/-16.9393/OpenStreetMap&lonlats=-16.949489,32.667135|-16.941766,32.723072
04:27 PM cehteh: thats where i took that steep photo
04:29 PM vmt: sure, do you travel a lot to bike?
04:29 PM cehteh: at least i try so
04:29 PM cehteh: on madeira we rented bikes
04:30 PM cehteh: otherwise if possible i take at least my bike with me
04:30 PM cehteh: being mobile on the destination w/o taxi fares, busses etc is a good thing
04:33 PM vmt: mm i guess so. i figure in some places you can get your bike in your hotel, however sometimes i figure you would have to leave it out
04:33 PM cehteh: usually i ask first, many hotels in germany even have locked rooms for bikes
04:34 PM vmt: well yeah germany, but places where tourists get hustled more :)
04:34 PM cehteh: otherwise its not overly dangerous to lock a bike in germany .. of course depends on the place/time/town/bike/moon phase ...
04:34 PM vmt: yeah
04:34 PM cehteh: i wont lock my expensvie bike at the train station
10:31 PM JanC_ is now known as JanC
11:20 PM day__ is now known as day