the Hearth @Felthry@awoo.space

why are we feeling all on edge today, small things are bothering us a lot

lb: still really proud of this joke

since mastodon is obsessed with jeans I feel like it should be pointed out that there is an astrophysical term, "Jeans instability"

Electrical engineering people on here, does anyone know of a really simple way to measure current of up to a few hundred mA that may be positive or negative on a rail that may be anywhere from +12V to -12V, and put it into a microcontroller with ADCs that only work up to 3V and can't go negative?

I'd prefer a simple integrated solution and the ACS70331 looks perfect except no one stocks it in SOIC and I don't want to hand-solder a WQFN, especially when the circuit needs four of them

okay seriously why is it having so much trouble, I can't get it to load at all

this website is poorly optimized for anything

why does Newark run so slow

fun activity: annoy physicists by using the wrong symbol for everything. "Let q be the speed of light", "f is used here to denote the velocity, or fastness, of the object", "given a sphere of total charge n and radius p,"

Some chips, like the LM741 and the NE555, are very popular among hobbyists but never used in professional design anymore.

Others, though, have retained their usefulness for a very, very long time. You still see 2222s and 3904s in transistor part numbers, the 1N4001 and 1N4148 are still some of the most common diodes around, the LM317 even finds its niche from time to time.

I don't know where I was going with this. Just some ponderances I suppose.

Ferrocerium!

I don't actually know what most of the settings mean in graphics options. What is pixel light count? What does it do when you change it? I couldn't say. I know what antialiasing is, but what are the options? TAA? SAA? 2xSAA + TAA? What does anisotropic filtering even _mean_, anyway?

ghhhh the ACS70331 is _available_ in an easy to use SOIC package, but no distributor sells it so you can only get it by buying in bulk from Allegro

I mean we can _do_ it, probably, but I prefer SOIC or something with a more reasonable pin pitch

why must all the things that fit all our other needs perfectly have a 0.5mm pin pitch

https://www.ti.com/ww/en/analog/power_management/microsip/images/SIP_new2B.gif

this gif just feels off somehow

web-1.0-ish or something

Got dicks on the brain today....

*opens up its head and takes out a couple dicks*

I was wondering where those had gotten to.

weird translations on datasheets are often amusing.

http://falstad.com/circuit/circuitjs.html?cct=$+1+0.000005+9.78399845368213+50+5+50%0AR+192+80+192+48+0+0+40+5+0+0+0.5%0Ar+192+80+192+128+0+4700%0At+192+128+288+128+0+1+0+0+100%0Ac+352+80+352+112+0+0.00009999999999999999+0.001%0Al+352+144+352+176+0+0.01+0%0Aw+192+176+192+128+0%0Aw+288+144+288+176+1%0Aw+288+176+352+176+0%0Aw+352+80+288+80+1%0Aw+288+80+288+112+0%0Aw+288+80+192+80+0%0At+160+192+192+192+0+1+0+0+100%0Ag+192+208+192+224+0%0Ar+160+192+96+192+0+4700%0AL+96+192+80+192+0+0+false+3.3+0%0Ad+288+176+192+176+1+0.805904783%0Ar+352+112+352+144+0+203%0Aw+400+176+352+176+0%0Aw+352+112+400+112+0%0Ap+400+112+400+176+1+0%0Ao+4+64+0+4353+80+0.00009765625+0+2+4+3%0Ao+19+64+0+4354+0.0000762939453125+0.1+1+1%0A this is such a fascinating little circuit. It converts a continuous digital signal into positive or negative current pulses through the resistor/inductor whenever it changes, meaning you can use it to drive a single-coil latching relay with a simple digital output. Also I really hope mastodon shortens that link.