#garfield Logs
Apr 10 2018
#garfield Calendar
12:00 AM rue_mohr: kat, do you have 1000pcs of sliding potentiometers?
12:07 AM katsmeow: seller i just got the $11.50 psu from, canceled his other auction on aother psu, and put it up as buy-now $29
12:07 AM katsmeow: no
12:10 AM katsmeow: he's pissed
12:10 AM katsmeow: you can alwasy use some string to make alinear motion turn the regular pot
12:10 AM rue_mohr: https://www.aliexpress.com/item/Freeshipping-Original-Behringer-Soundcraft-7-5-cm-75MM-A10KX2-double-straight-slide-potentiometer-A10K-10PCS-LOT/32503513283.html
12:10 AM rue_mohr: I suppose their nice for $1.30ea
12:10 AM rue_mohr: I'm wondering how much I need to diy to get the pricepoint right
12:10 AM katsmeow: <cough> thing about linear pots: cannot keep the dirt out of them without making them hard to slide
12:10 AM rue_mohr: everything is over $1ea
12:21 AM rue_mohr: https://www.aliexpress.com/item/10PCS-LOT-3362P-103-3362P-10K-ohm-High-Precision-Variable-Resistor-Potentiometer-Hot-Sale/32685457702.html
12:21 AM rue_mohr: I'm guessing after the first 300 degrees, the multiturn-ability dosn't work as expected
12:22 AM katsmeow: it's not a Bournes
12:22 AM rue_mohr: or maybe they mean you can turn it more than once between its 300 degree range
12:23 AM rue_mohr: kat! are you suggesting its a knockoff!??!
12:23 AM katsmeow: but it is a burnes number
12:23 AM katsmeow: no, China doesn;t do that
12:24 AM katsmeow: https://duckduckgo.com/?q=3362P-103&t=ffsb&ia=web
12:24 AM rue_mohr: yea, no magic, single turn
12:25 AM katsmeow: says on page "Multiturn Trimmer Potentiometer" ?
12:25 AM rue_mohr: yea,
12:25 AM rue_mohr: so, ^^
12:25 AM katsmeow: same price : https://www.ebay.com/p/10-Pcs-Potentiometer-Trimmer-Variable-Resistor-3362p-103-10k-Ohm-J1l8/2113651162?rmvSB=true
12:26 AM katsmeow: canbe cheaper
12:26 AM rue_mohr: looking for a multiturn with a bit of a shaft in that same formfactor
12:26 AM rue_mohr: https://www.aliexpress.com/item/Free-shipping-100pc-big-head-potentiometer-3296W-100K-104-multiturn-trimming-potentiometer/32828920957.html
12:26 AM rue_mohr: hello moto
12:26 AM katsmeow: dijikey says: 10 kOhms 0.5W, 1/2W PC Pins Through Hole Trimmer Potentiometer Cermet 1 Turn Top Adjustment
12:27 AM rue_mohr: $41, but I get 100pcs
12:28 AM katsmeow: Bournes refused to send me the pdf on it
12:30 AM rue_mohr: sweet talk russia, their good about that kinda thing
12:31 AM * katsmeow wonders what if i sign the electronic pad by drawing a pic of a cat's paw onit
12:32 AM rue_mohr: its a mark, I dont think anyone cares
12:32 AM rue_mohr: I sign at the electricians store with about 40-50 dots over i's in my name
12:33 AM rue_mohr: anyone who asks "whos signature is this" isn't a problem for me
12:33 AM * katsmeow puts more blue goop on her paws
12:33 AM rue_mohr: tap tap tap tap tap tap tap tap tap
12:33 AM katsmeow: hmm?
12:34 AM katsmeow: oh, dots
12:34 AM rue_mohr: :)
12:35 AM rue_mohr: I cant find the pots they use in the hobby servos
12:35 AM katsmeow: are theycheap open frame metal?
12:36 AM rue_mohr: https://www.aliexpress.com/item/Free-Shipping-Mini-Servo-motor-potentiometer/1855177392.html
12:36 AM rue_mohr: no, they are small
12:36 AM rue_mohr: (the joke being that a finished servos is $1.50)
12:38 AM katsmeow: https://www.ebay.com/sch/i.html?_odkw=miniature+trim+pot&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.Xminiature+trim+potentiometer.TRS1&_nkw=miniature+trim+potentiometer&_sacat=0
12:39 AM rue_mohr: yes and no, they have a really long shaft
12:39 AM katsmeow: https://www.parts-express.com/data/default/images/catalog/240/028-500_HR_0.jpg
12:39 AM rue_mohr: prolyl 10mm dia
12:40 AM rue_mohr: huh, funny, I ahve a bag of like 200 of those...
12:40 AM rue_mohr: hmm
12:40 AM rue_mohr: gangable too
12:42 AM katsmeow: these are 10 turn : https://www.ebay.com/itm/10PCS-3296W-503-3296-W-50K-ohm-Trim-Pot-Trimmer-Potentiometer/132482003291
12:42 AM rue_mohr: yes, but hooking to those tiny heads has beena challange
12:42 AM rue_mohr: https://www.aliexpress.com/item/Free-shipping-100pc-big-head-potentiometer-3296W-100K-104-multiturn-trimming-potentiometer/32828920957.html
12:42 AM rue_mohr: thats the only seller of those
12:44 AM * katsmeow need to go lay down and sleep
12:44 AM rue_mohr: gnight
12:45 AM katsmeow: gnites
12:49 AM rue_mohr: ok, how about two analog hall sensors at 90degree phase
12:50 AM rue_mohr: and then every time it goes near anything magnetic, everything goes to hell
12:50 AM rue_mohr: how about a vdlt?
08:05 PM zhanx: well my parts came in for the the printer frame today
08:06 PM zhanx: rue_mohr:
09:21 PM katsmeow is now known as katsmeow-afk
10:55 PM rue_mohr: ok
10:55 PM rue_mohr: so, want the rod lengths?
11:00 PM zhanx: got them
11:17 PM rue_mohr: 13 pcs right?
11:17 PM rue_mohr: 6, 4, and 3
11:18 PM rue_mohr: 3 loong, 6 shorter, and 4 shortest
11:19 PM Tom_L: papa bear, mama bear, baby bear
11:28 PM rue_mohr: I lost him
11:28 PM rue_mohr: hey kat
11:29 PM Tom_L: messin with xilinx all evening
11:29 PM rue_mohr: yep
11:29 PM katsmeow: hey rue
11:30 PM rue_mohr: katsmeow, so, you have a dragon, and you have avrdude installed
11:30 PM rue_mohr: I cant seem to work out how to get avrdude to operate a dragon in spi mode
11:30 PM katsmeow: and i had a tooth pulled this morning and am on sleeping pills and pain scription
11:30 PM rue_mohr: ah
11:30 PM rue_mohr: this avr stuff sure is a challange!
11:31 PM katsmeow: i agree, and i have never programemdone!
11:31 PM rue_mohr: go ahead kat, say "I'm not in the mood tonight" :/
11:31 PM katsmeow: looked at the assy instructions, there's no bytecode, i cannot poke "ADD"
11:31 PM rue_mohr: we get to that later
11:32 PM rue_mohr: we have to make you a working platform first
11:32 PM * rue_mohr is half waitng for kat to say she's not in the mood tonight
11:32 PM rue_mohr: ok, I should send kat a parallel programmer
11:33 PM rue_mohr: thats what I should do
11:33 PM * katsmeow seems to be not in the mood tonite
11:33 PM rue_mohr: kat, do you have a PC with a parallel port?
11:33 PM rue_mohr: I also need to send tom $10
11:33 PM Tom_L: dragon_isp
11:33 PM katsmeow: why? you need a par port programmer crushed? clamp it in the vise and use a sledge on it, or just run over it tomorrow on the way to work, that's how the usps does it
11:33 PM rue_mohr: maybe $20... usd -> cad thats like... $65
11:33 PM Tom_L: is what you want
11:34 PM Tom_L: P.10 avrdude manual
11:34 PM rue_mohr: no thats jtag
11:34 PM rue_mohr: all they say about the dragon is jtag
11:34 PM Tom_L: no, jtag is dragon_jtag
11:34 PM Tom_L: you need a new book
11:35 PM * katsmeow grabs a flashlite and looks at the hineys of all Tiggr's puters
11:35 PM rue_mohr: what manual were you reading that I wasn't
11:35 PM Tom_L: 5.10
11:35 PM Tom_L: dude
11:35 PM rue_mohr: avrdude version 6.3, URL: <http://savannah.nongnu.org/projects/avrdude/>
11:36 PM rue_mohr: ok
11:36 PM rue_mohr: the ONLY mention of the dragon in mine is the jtag stuff
11:36 PM rue_mohr: I wonder what it is I have, it was free
11:36 PM rue_mohr: I think its an ice II
11:36 PM rue_mohr: hmm
11:37 PM Tom_L: http://tom-itx.no-ip.biz:81/~webpage/avr/avrdude/avrdude-doc-5.10.pdf
11:37 PM rue_mohr: Tom_L, ok, what is the programmer code for a dragon
11:37 PM Tom_L: P.10
11:38 PM rue_mohr: huh
11:38 PM Tom_L: iirc you use the jtag header for the signals
11:38 PM Tom_L: been too long...
11:39 PM katsmeow: all got parport and cerial ports
11:39 PM Tom_L: going for system shutdown here
11:39 PM rue_mohr: avrdude -c dragon_isp -P usb -p tiny-whatever-kat-has -e -U flash:w:binaryfromrue.hex
11:40 PM katsmeow: "yea, there';s a guy in canada on ebay, he sells avr chips programmed to do things you need"
11:40 PM rue_mohr: ok, kat, help me out here, what is the avr you have a bunch of?
11:40 PM rue_mohr: tiny4414?
11:41 PM rue_mohr: (were not doing things now, I'm trying to figure out how we do them later)
11:41 PM rue_mohr: ... you... are ok with doing things with me, ... right?
11:41 PM katsmeow: i have 20 pcs of tiny44
11:41 PM katsmeow: in dip
11:42 PM rue_mohr: tiny44, ok
11:42 PM katsmeow: i have 200 os that big dip-40 avr
11:42 PM rue_mohr: do you have a ~solderless breadboard~ ?
11:42 PM katsmeow: somewhere
11:42 PM rue_mohr: ok, what do you want to use, you call it
11:43 PM katsmeow: rue, i ate sleeping pills a while ago, and the narcotic pain med, on a scale of 1-10 , how pissed will you be at me for falling asleep?
11:43 PM rue_mohr: 0%
11:43 PM rue_mohr: there is a 6 pin conenctor in the "middle" of the dragon
11:44 PM rue_mohr: its the isp connector
11:44 PM katsmeow: Tom, avrdude-doc-5.10.pdf came with ... something
11:45 PM katsmeow: or not, maybe
11:46 PM katsmeow: rue, there is a isp next to the jtag
11:46 PM rue_mohr: https://maclabsengineering.files.wordpress.com/2014/04/20140405_074155.jpg
11:46 PM rue_mohr: the main one that guy is using
11:47 PM katsmeow: we used it to try programming a tiny2313 years ago
11:47 PM rue_mohr: ok! you have located the isp
11:47 PM rue_mohr: yes, and we failed
11:47 PM rue_mohr: whatever failed, your avr would not run standalone
11:47 PM rue_mohr: thats why I want to do this again
11:47 PM rue_mohr: my way,
11:47 PM rue_mohr: I wasn't leading last time and the problem was never solved
11:48 PM rue_mohr: I'll design around the tiny44
11:48 PM rue_mohr: iirc
11:48 PM * katsmeow sends rue a truth table of what the pins should do, and includes $20 for shipping
11:48 PM rue_mohr: if I knew when, we could look up the logs
11:49 PM rue_mohr: np
11:49 PM rue_mohr: I'm collecting facts
11:49 PM rue_mohr: we have establishes that the dragon is operable from avrude and where its isp is
11:49 PM rue_mohr: that were using the tiny44 (unless you issue a change request)
11:50 PM rue_mohr: and that we indeed cannot pin down WHY the sky is 0000FF
11:51 PM rue_mohr: we also dont have a confirm if kat has a solderless breadknife
11:51 PM rue_mohr: board
11:51 PM rue_mohr: hu?
11:51 PM rue_mohr: breadboard
11:51 PM rue_mohr: sure, whatever.
11:51 PM katsmeow: Sunday 2/3/2013 at 19:30 oclock
11:51 PM rue_mohr: http://tom-itx.no-ip.biz:81/~tom-itx/irc/logs/%23garfield/2013-03-02.html
11:52 PM katsmeow: [19:47] <rue_house> it'll be a 6 or 10 pin header
11:52 PM katsmeow: [19:47] <useless2> there's usb, 6pin ISP, 10pin JTAG, 6pin power (if the usb is not used, 20 holes for a HV header, and no sockets to put in the avr to program
11:53 PM rue_mohr: ok, a simple month/day reversal and I found it, thanks kat
11:54 PM rue_mohr: ah, still no breadboard?
11:55 PM katsmeow: pretty sure the breadboard convo went: do you have one, yeas, it's been sitting here for weeks why haven;t you used it? you never said for what. Why did you get ut? you told me to.
11:55 PM katsmeow: you have never ever used one? nope.
11:56 PM rue_mohr: "19:52 useless2 i have no breadboard or 5v psu "
11:56 PM rue_mohr: so, you have a breadboard now?
11:56 PM rue_mohr: yes?
11:57 PM rue_mohr: the dragon gets its power from the usb
11:57 PM rue_mohr: and the dragon makes that usb 5V available on some of the connections for the device
11:58 PM katsmeow: i just looked for the breadboard, i do not see it
11:59 PM rue_mohr: oh
11:59 PM rue_mohr: have some spare protoboard?
11:59 PM katsmeow: perfboard? lots
11:59 PM katsmeow: and i know where it is
11:59 PM rue_mohr: ok, hmm got enough dip sockets to fake whats needed for an avr chip?