omfg OMFG the fucking instructors solution manual cant differentiate correctly WTF
Posted by renesis at 17:42 | permalink | 0 comments
lordpil's blog
mars has no beaches
300 miles from beach is bad enough
Posted by renesis at 08:08 | permalink | 0 comments
fuck a grave you gonna let them put exyou in a box?
i dont see how the location of the dirt is relavent
Posted by renesis at 07:22 | permalink | 0 comments
i dont think anyone knows who you are talking to
also you cant prove that
also, you know you cant prove that
Posted by renesis at 05:48 | permalink | 0 comments
my pi zero has one day uptime and hasnt disconnected ssh the entire time
Posted by renesis at 04:32 | permalink | 0 comments
...because you build computers
kids with google do this all the time
you repair modern electronics at a component level for business and wonder why you dont make money?
software fixes are temporary and unreliable
i dunno man i consider operating systems temporary and unreliable for the most part
unless its a lunix server that does one thing
i had crazy uptime on gentoo built from sources
that shit was either like, reboot 20 times a day, or once in two years
Posted by renesis at 04:26 | permalink | 0 comments
visually satisfying
and in many cases better for feedback
you can look at a panel meter and tell whats going on faster than a panel meter
this is why digital speedometers mostly died
right but few have just the digital gauge
unless sportscar and the tach is higher priority
jero32: no
jero32: basically its for boutique style gear
so like, expensive studio outboard gear or audiophool tube amps
audiophile is an ambiguous enough term thats its basically useless
^
they require trimpots, trimpots mean skilled labor, skilled labor = $$$$$
eh you build computers
Posted by renesis at 04:21 | permalink | 0 comments
http://www.uchobby.com/index.php/2008/02/12/arduino-analog-gauge/
heh, this guy did it for PC stats
https://www.adafruit.com/product/252
damn that seems spendy
right, im just saying because i seen boxes of that shit unused in warehouses
pretty much
tho im not sure if there is a ham swapmeet within 100mi of here
hmm i think sac just goes to the bay
Posted by renesis at 04:16 | permalink | 0 comments
haha, or the army of routing switches
yeah 10b adc and good ref is prob comparable accuracy for $3-5
and you get a whole uC along with it
my fav panel meter setup was tube job, boss had pots on all the analog uA current meter
i guess switches broke all his panel meter needles
so you would have to like, ease the current in with the pots
i wonder if uC controlled panel meters are a thing
like, analog ones
Posted by renesis at 04:11 | permalink | 0 comments
http://www.testequipmentdepot.com/lascar/panel-meters/3.5-digit-digital-panel-voltmeter-dpm-950s-fpsi.htm?ref=gbase&gclid=CjwKEAiAoaXFBRCNhautiPvnqzoSJABzHd6h4EA4TSS0_8u_8c_pl-v15h9AHc92f8k9hUUN4KyHBxoCZ7Dw_wcB
that was the cheapest at grainger, $130 there
jero32: if price is an issue but design and debug time arent, making your own is maybe a better solution
heh, alot of panel meter applications ive worked with required more than one
Posted by renesis at 04:06 | permalink | 0 comments
and the price kind of aligns with my price guesses
https://www.grainger.com/product/GRAINGER-APPROVED-Digital-Panel-Meter-12G505?breadcrumbCatId=2177&s_pp=false&picUrl=//static.grainger.com/rp/s/is/image/Grainger/12G472_AS01?$smthumb$
5x more accuracy, 10x the price
i trust the specs that include the +/- LSD more, tho
Posted by renesis at 04:00 | permalink | 0 comments
if the velleman accuracy is refencing full scale its like +/- 50mV
so yeah, only good for about .1V
oh wait its 200mV not 9V
so its like +/- 1mV, sounds like a noise floor based spec to me
100uV?
who knows, too early for maths
today is all about thing flys through the air, what speed does it smash into a thing
racecar which is lame because it needs banking is going fast, what banking angle so it doesnt fall off
rab: thats matches my 9V calculation exactly
which is neat because i trust velleman docs
Posted by renesis at 03:55 | permalink | 0 comments
if it even comes with one
if its not an epoxy dot
i tent to trust the giant DMM dip ones more
jero32: depends on $$$ and time
if you needed an accurater panel meter you could probably buy one from digikey/mouser/mcmaster/grainger
if you dont, ebay or surplus electronics works
the documented ones are probably $20-100
Posted by renesis at 03:34 | permalink | 0 comments
ha @ panel meter accuracy
answer: completely fucking random
Posted by renesis at 03:29 | permalink | 0 comments
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