#garfield Logs

Nov 24 2013

00:27 rue_shop2 heh, 72W digital wall clock
00:27 rue_shop2 maybe I better rework the power supply
00:28 e_shop2 looks at kats computer power su
00:28 e_shop2 sees the glow of a light come on over his
00:29 rue_shop2 hah, 82W
00:29 rue_shop2 19.5V 3.3A
00:30 rue_shop2 4.75x current ratio
00:30 rue_shop2 .7A * 25 segments
00:30 rue_shop2 17.5A
00:30 rue_shop2 3.68A
00:30 rue_shop2 damn
00:30 rue_shop2 so close
00:32 rue_shop2 but its close if I dont turn up the brightness
00:32 rue_shop2 I wonder how the bacon is doing
00:32 katsmeow-afk ?
00:37 rue_shop2 "take care, it could be labeled backwards" "its not labeled at all!?" "yes, its better to be safe than sorry"
00:38 rue_shop2 "You two can shoot at each other if you like, its a nice day, and I'm gonna go for a walk."
00:39 katsmeow-afk yeas, 4164's have swapped vcc and gnd pins :-/
00:40 rue_shop2 ooo oh are those the static ones with seperate input and output pins?
00:40 katsmeow-afk no, 64kx1 drams
00:57 rue_shop2 hmm
00:57 rue_shop2 I need 25x 1A drivers
00:58 katsmeow-afk i need a programmed t13
00:58 rue_shop2 hmm 4x 74595
00:59 rue_shop2 kat, 16 bit shifted serial data values then?
00:59 katsmeow-afk it's a 10bit adc, why 16 bits?
01:00 rue_shop2 usually multiples of 8 are easier to work with
01:00 rue_shop2 but ok
01:00 katsmeow-afk is any avr tiny a 16bit adc?
01:00 rue_shop2 I suppose a 2808 cant push 4A
01:00 rue_shop2 no its 10
01:01 rue_shop2 usualy grouping bits in multiples of 8 in digital systems is easier
01:01 rue_shop2 it dosn't have to be in your project
01:02 rue_shop2 I must have something with big transistor arrays
01:02 rue_shop2 I do
01:02 rue_shop2 motor drivers, 4 channels ea
01:02 rue_shop2 aha
01:02 rue_shop2 I need 7 of them
01:03 tsmeow-afk ponders using a chopped dc and scrs instead of transistors or fets in h-bri
01:04 katsmeow-afk C122A - SCR 8 Amp / 100 Volt - Lot of 5 ; $2.70
01:07 katsmeow-afk (25) S4006L Littelfuse (Teccor) 400V 6A Isolated SCR RoHS Thyristor TO-220 400 V ; $8 free s&h
01:07 katsmeow-afk 25 PCS BT151-500R TO-220 Thyristor SCR 7.5A 500V ; $8.59 free s&h
01:08 katsmeow-afk 50 PCS BT151-500R TO-220 Thyristor SCR 7.5A 500V ; $10.19 free s&h
01:09 rue_shop2 I have enough STA401 to do this
01:09 katsmeow-afk (100) S4006L Littelfuse (Teccor) 400V 6A Isolated SCR RoHS Thyristor TO-220 ; $14 + $3 s&h
01:22 tsmeow-afk realises she will need to use 2 of her 50 cent heatsinks to charge 10amps into a 10v discharged battery from a 15v dc su
04:14 katsmeow-afk ...
04:17 katsmeow-afk rue, so you were just badgering me about the system design for what? when you weren't going to program the t13 anyhow, i mean
10:06 rue_bed I am
10:06 rue_bed I have to wait for a slot to do it
10:07 rue_bed I dont get many good slots
10:42 m_itx removes rue_bed's sleep slot as it can be set aside for l
13:36 katsmeow-afk somehow, i thought the small micros would be a great thing, for me, but every interaction i have with them and humans, leads to a bad taste in my mouth, it reminds me of the early 1980's, when any disccusion of dip40 cpu back then ends in fighting
13:36 katsmeow-afk over which was better, the 6809, 6502, or 8080
13:37 rue_house I dont know enough about the 6809
13:37 rue_house the 8088 had lots of registers, I always favored that
13:38 katsmeow-afk <me> i use the 6502 because it's less pricey, and it can do this and this, what have youlearned using the 6809? [very interested look]" "the 6502 is a piece of shit, and you're a dumbass for even touching one [distainful look down nose]"
13:40 katsmeow-afk yeas, but you paid for the internal registers in bad ways on the 8080, afaik, while the zero-page cpus used 256 bytes of external ram as pseudo-registers, and you could page thos registers, and the stack space, to respond to interrupts very fast
13:40 katsmeow-afk the z80 tried to emulate the zero-page by providing a complete duplicate register set inside
13:42 katsmeow-afk the 6510 tried to become the first microcontroller by putting a 6-bit i/o port on the cpu, i'd have voted for more sync pins (the 6502 had one), which Intel kept on the 80xx chips to add 8087/etc chips with
13:43 katsmeow-afk adding one measely port on the 6502 to make a 6510 , and then putting it into a general purpose computer? ouch
13:45 katsmeow-afk and it was a emasely port too, 6 bits, when they could have made some sorta piggyback arrangement with a 6522 and gotten 4 bidirectional 8-bit ports, some serial ports, and some scratchpad ram too,,, every cpu family had a selection of dip-40 io chips, the 6510 didn't need one
13:48 katsmeow-afk cpu tricks: i remember one 40-65-80-132 column adapter for the C64, every new line displayed caused the cpu to read/write build new fonts to display each pair of characters, it was merging the bitmap of 2 or 3 chars to one 8x8-ish font cell to use the oem display chip as the video output
13:49 katsmeow-afk while MOS Technology (the company) did make leapfrog advances, the best display chip above 40 columns was the intel chip
13:50 tsmeow-afk is inloading a pic for Tom's opi
13:54 katsmeow-afk twice too much sprocket : http://designerthinking.com/images/sprockets/DSCF6500m.jpg
13:55 katsmeow-afk home made, but how to mount on a hub ?? : http://designerthinking.com/images/sprockets/DSCF2005.jpg
13:55 katsmeow-afk afk a sec......
13:56 Tom_itx braze/weld it to a couplder
13:56 Tom_itx coupler*
14:03 katsmeow-afk not really enough room
14:04 Tom_itx drill a couple holes and fill them with weld
14:04 katsmeow-afk there's only 1/4 inch from the ID of the chainplate cirle to the shaft hole OD
14:04 Tom_itx sticking it to the coupler
14:04 Tom_itx or pin it and weld that
14:05 katsmeow-afk pin how?
14:05 Tom_itx thru side of gear, end of coupler
14:05 Tom_itx butt the coupler
14:05 katsmeow-afk if you drill a hole for a 1/8 roll pin yu have removed over half the material
14:06 tsmeow-afk hmms a mi
14:08 katsmeow-afk there's two ways to fasten it to the *end* of a shaft: 1) shove shaft thru and weld the other side, or 2) shove shaft thru, drill "keyways" and pound in roll pins ,,, is there a 3rd way that can also be used when not at the end of a shaft?
14:08 katsmeow-afk i keep coming back to : lathe it from one block of steel
14:09 katsmeow-afk or buy the bottom sprocket in http://designerthinking.com/images/sprockets/DSCF6500m.jpg and grind the teeth skinnier
14:10 Tom_itx probably an easier option
14:10 katsmeow-afk yeas, because for $7, they have cut a keyway and threaded 2 holes for grubscrews too
14:11 Tom_itx would not disturb the 'bearing' surface of the gear either
14:11 katsmeow-afk true
14:13 katsmeow-afk i was going to clamp the grinder in the vise on the big drill press, now that it's set up again, clamp the sprocket in the bit chuck, spin both in opposite directions, and lower the sprocket into the grinder
14:15 Tom_itx show me the results in 10 min
14:15 katsmeow-afk heh
14:15 tsmeow-afk is eating lunch
14:16 katsmeow-afk besides, that is an indoors task, gotta do outside atuff while the sun shines, however weakly
14:23 katsmeow-afk course, Intel later added the PORT cmd, extending the 6502's zero page use to also be address mapped io ports, which was a fantastic scheme imo, an example of what i mean by "add more sync pins"
14:25 katsmeow-afk you could directly hang 8 74LS374 off the lower 8addy pins, select using the PORT pin, and there wasn't an easier/faster way to do io straight into the cpu,, and dratted MOS Tech went the otehr direction with the 6510
14:27 katsmeow-afk each bit of the addy bus enabled a 74LS374 which laid across the data buss,, or add as many 74LS138's to decode more addys
14:33 tsmeow-afk sneezed so hard she blew a handfull of postit notes
17:21 katsmeow-afk couldn't find the chuck key for the floor drill press, found another key that would fit it tho
17:34 katsmeow-afk tv says the "tempachurs" will be low enough when the rain starts that "mini people" will see sleet and snow, but as usual it will feel colder because of the wind
17:36 katsmeow-afk "World War II U-Boat Found With Skeletons" ,,,,, that's wierd, i wonder why they were carrying skeletons
17:36 tsmeow-afk rolls her
17:41 katsmeow-afk State Farm Insurance reported that it had nearly 3,500 claims for dog bites nationally in 2010, and paid out more than $90 million in claims.
17:41 katsmeow-afk Medical expenses related to dog bites reportedly cost the Postal Service nearly $1.2 million last year.(2010)
18:00 tsmeow-afk checks to see if the paint is dry
19:23 katsmeow-afk woah : http://www.ebay.com/itm/LOT-of-6-9000-Ductless-Mini-Split-Air-Conditioner-A-C-Cool-Heat-Pump-KFTHP-09/121214805040
19:24 katsmeow-afk if no one bids on it because no one wants to pay s&h, pickup is $35, that's a system for a steal
19:25 katsmeow-afk This auction includes:
19:25 katsmeow-afk (6) Indoor Evaporator units
19:25 katsmeow-afk (6) Outdoor Condensing units
19:25 katsmeow-afk (6) Remote Controls
19:25 katsmeow-afk 1 Year Manufacturer Warranty
19:25 katsmeow-afk 6 Year Compressor Warranty
19:33 katsmeow-afk 968 miles to there plus back, callit an even 2000 miles, @ 30mpg = 67 gallons,c all it 70, @ 3.30/gal = $230 round trip for fuel, vs the ebay s&h of $600
19:35 katsmeow-afk so if the winning bid is $100 , plus the $230 gas for driving, plus the $35 pickup fee, is $365 for 6 9000btu 120vac heatpumps, or $60 each system
19:35 tsmeow-afk rephr
19:36 katsmeow-afk the $230 gas for driving, plus the $35 pickup fee, is $265 for 6 9000btu 120vac heatpumps, or $44 each system , plus whatever the winning bid/6 is
19:38 katsmeow-afk nice thing about baby systems is they can be run one at a time off a baby generator, and if started in sequence can be started and run by a big unit too
19:38 katsmeow-afk 6 9000btu is 54,000 btu, and these are heatpumps
19:39 katsmeow-afk my 18,000 btu *olde* unit is 14amps @ 240v, but pulls 60amps for ~3 sec to start it
19:40 katsmeow-afk my baby window units are ~5000btu, pull only a few amps, but stil take lots to crank them
19:49 katsmeow-afk hmm, there's an alphabet, but it's stuck with no updates, there's no betabet
19:55 katsmeow-afk i didn't loose only the chuck key, the jaws off the xy vise are missing too
19:55 katsmeow-afk the jaw faces, the vise is still there
21:42 katsmeow-afk well, no handles for the xy table on the floor drill press either
22:01 katsmeow-afk everyone on ebay wants money for them, i wonder what HF wants for them
22:03 katsmeow-afk http://news.discovery.com/tech/robotics/flying-robot-moves-like-a-jellyfish-131124.htm
22:47 tsmeow-afk ponders cutting a square slot in the end of key stock, then welding an end over the slot, making a square hole, to fit the xy table sc
22:50 katsmeow-afk 1/2 inch stock, to fit the 1/4 square end, and then i can drill the otehr end and use a 1/4 bolt for the handle
22:54 katsmeow-afk or just a slot, and pin the handle so it drops out of the way
23:05 katsmeow-afk [22:46] <un_useful> http://www.nydailynews.com/news/national/police-stop-man-258-times-charge-trespassing-work-article-1.1526422
23:05 katsmeow-afk [22:48] <un_useful> http://www.nydailynews.com/news/national/san-antonio-cuffed-raped-19-year-old-traffic-stop-police-article-1.1527459
23:53 katsmeow-afk In Free-Running mode the ADC is set up to start a new conversion immediately after the
23:53 katsmeow-afk previous conversion is complete. To enable this feature, the ADFR bit in the ADCSR
23:53 katsmeow-afk Register must be set. When this bit is set, the ADC will start a new conversion immediately
23:53 katsmeow-afk when the old conversion has finished.
23:54 TELunus So... my project team finaly realized on Friday that we don't really want to go with a stepper for our main spooling motor.
23:59 tsmeow-afk downloaded DESIGN
23:59 katsmeow-afk AUTHOR:
23:59 katsmeow-afk KEYWORDS: #021
23:59 katsmeow-afk from avrfreaks, and can not understand the program
23:59 katsmeow-afk freaks_DN_021.pdf