#garfield Logs

Jan 07 2021

12:15 AM rue_mohr: I wonder if the order of a FIR filter can be adjusted
12:21 AM rue_mohr: well yea, but you have to know a lot about what your doing
12:21 AM rue_mohr: I dont know that yet
12:21 AM rue_mohr: then I guess your stuck with its natural order
12:21 AM rue_mohr: but
12:21 AM rue_mohr: ok so, I need to adjust this filter
12:21 AM rue_mohr: do tell
12:21 AM rue_mohr: I need it up and over more
12:21 AM rue_mohr: up is easy, I think
12:23 AM rue_mohr: so today a plotter pen knife arrived from amazon
12:24 AM rue_mohr: a local fellow pointed out that one of the plotters I have, has a variable force unit for cutting
12:24 AM rue_mohr: gnight Rue
12:24 AM rue_mohr: oh :( I wanna play
12:25 AM rue_mohr: shops off, ok
12:25 AM rue_mohr: how we gonna do this filter
12:26 AM rue_mohr: we COULD simulate an analog circuit
12:26 AM rue_mohr: maybe we can figure out how to bend it to 30db/decade
01:14 AM rue_bed2: ok, well, that circuit challenge was a good one
01:14 AM rue_bed2: I might finish that up
01:14 AM rue_bed2: we could do code now
01:14 AM rue_bed2: meh
01:14 AM rue_bed2: serial plus adc
01:14 AM rue_bed2: on t13
01:14 AM rue_bed2: and pwm
01:14 AM rue_bed2: yea but its fixed
05:11 AM polprog: i should do the 2x8 lcd footprint
05:12 AM polprog: i wanted to do that when they come and use calipers but i looked up the part # and found a technical drawing with all dimensions on other sellers site
05:13 AM polprog: ordered more kit from ali, i went for these AD712-s and also got a 100 pack of pogo pins and a nice plastic clip that an adapter PCB can be screwed to
09:49 AM rue_mohr: hmm whats with AD712?
10:05 AM polprog: just a precision high speed opamp, we talked about it
03:39 PM polprog: hmm, that common mode choke with a PNP does not work for me :(
03:46 PM polprog: i know its supposed to work
03:46 PM polprog: dont have the brainpower to debug it
06:39 PM rue_mohr: hu?
06:39 PM rue_mohr: the -10V thing>?
06:40 PM rue_mohr: it needs a freq input eh?
06:57 PM rue_mohr: polprog, ! I need to know what didn't work now
06:58 PM rue_mohr: that fancy -10V circuit needs a good sized inductor, 1 - 2mH
07:06 PM aandrew: le sigh
07:28 PM rue_mohr: you might have caught french, would you life me to shoot you before it gets too bad?
07:32 PM aandrew: lol
07:32 PM aandrew: I am awfully close to Quebec and that shit is airborne
07:32 PM aandrew: nevermind the fact that I tend to pick up accents VERY fast. I always thought I'd die because some Texan woudl think I was mocking him and shoot me
07:33 PM darkrose: canada is having a french-prevention lockdown?
07:33 PM aandrew: not with a liberal in power, no
07:44 PM rue_shop1: wow I dont get much done when I'm working, toooo exhausted
07:44 PM rue_shop1: darkrose, any progress on a home?
07:48 PM darkrose: no, not seeing much at the moment
07:48 PM darkrose: could get a houseboat on the murray river
07:49 PM darkrose: also, lockdown starting in a few hours for added fun
07:50 PM aandrew: yeah Ontario's looking at doing a nightly curfew, not sure what that'll solve exactly
07:50 PM aandrew: darkrose: I have a friend who did the houseboat thing
07:50 PM aandrew: (australian too, actually)
07:51 PM aandrew: knew nothing about boats, kind of went all-in and did quite well. sailed around tasmania and australia
07:51 PM aandrew: now I think he's more or less semipermanently moored
07:52 PM aandrew: https://www.newsweek.com/study-shows-having-no-friends-deadly-smoking-493053
07:52 PM aandrew: thank god for IRC
07:55 PM darkrose: for seaworthy I could only afford a monohull, and I don't have knees good enough for getting in/out of the cabin... but I could do a river boat, there's a few thousand km's of navigable river
07:57 PM darkrose: other options include: hoping something good comes available and pouncing on it; renting for 6 months, build a couple of biggish steam loco's, and sell them to increase my budget; or move to canada, but, well
07:57 PM * darkrose points at the neighbours
08:03 PM aandrew: yeah I might be looking for a place soon
08:04 PM aandrew: trying to see if there's any way I can buy the place I'm in now (basically buy out my wife) - I like the location, I like the house, I like everything and don't want to move
08:04 PM aandrew: but I'm not sure if it's financially possible
08:04 PM aandrew: kind of playing things by ear it's all quite volatile atm
09:22 PM rue_mohr: oh dear
09:23 PM rue_mohr: darkrose, what I'v seen trying to live on a boat is a dead end street
09:25 PM rue_mohr: darkrose, do you have a passport?
09:26 PM rue_mohr: I wonder how I can do gain shaping on an FIR filter
09:26 PM rue_mohr: aandrew, how many taps were you working with?
09:26 PM rue_mohr: 3? 5? 11? 38?
11:25 PM rue_mohr: :S
11:25 PM rue_mohr: the tek scope will NOT save a screenshot, it keeps crashing
11:42 PM rue_mohr: I found a system log, there are a few errors
11:42 PM rue_mohr: like, serial timeout