Dima

@freya.bsky.social 's latest video inspired me to finally release a very personal article I've cooked for a while. I considered using some slop as the cover image initially. But that would taint the personal nature, and after her speech at the end I for the first time decided to hand draw something.

oscillators don't, but amplifiers always seem to 😖

Time to revive my SoM project. This is such an idiotic way to shoot yourself in the foot it's insane. Perfectly reasonable alternatives exist, but they decided to be HP...

anyone see the problem here?

Maker Faire Hannover Post 2: @dmytroengineering.com helped me unbrick an MSO-X 3034A! NAND flash corruption is a known issue and repairs are well-documented, but we came up with a method that uses ethernet to load the flash, plus this gives us an opportunity to bypass future NAND degradation!

They can if you think about the architecture of the underlying computer a bit harder 🧌

just like the render (jumped the gun on the inductances)

ThinkPad durability test

bodges are inevitable 😖

I had a vision

E-ink is so cool

Waiter! Waiter! There is an 8051 in my 10Gbit Ethernet SFP+ module!

Least over engineered pointing device

attoamperes?

today I'm testing the dielectric absorption test stand

Forgot to post the rack update www.printables.com/model/170182...

I just realized that my new signal generator has adjustable rise and fall times, so here's a demonstration of I/C = dV/dt using a 10 nF / 1 kΩ highpass filter

RIP Marvell 10Gbit NIC... At least you gave us the ball pinout in return for your sacrifice... Another sacrificial 10Gbit card (Realtek this time) has been ordered, why can't they just make the datasheet public smh...

the HMC8043 completes my all-LAN all-SCPI setup! to celebrate, I wrote a script that loads a few useful voltage/current configurations without having to fiddle with the front panel controls

okay so now I have like a very expensive clock

JFETs are underrated

Just connecting a client with a 10Gbit NIC to my router's 10Gbit Ethernet interface causes the average power draw of the entire rack to jump up by 3-4W. Not even routing traffic, just having a 10Gbit link in general.

My secret to cooking? Even temperature control.

it's this circuit: www.radiolocman.com/shem/schemat... but much faster! delay is adjustable between 0 and 1 μs and the output pulse is 10 ns (available in both polarities) a 12-bit DAC controls the delay, so the delay should be adjustable in steps of 250 ps

yep... 4 gigasamples per second with "6.5 digit" resolution... it took 33 minutes to capture 1.2 μs worth of waveform (timebase not calibrated yet)

Reminder to configure earlyOOM and or watchdog on your servers... In case some fuckass service decides to leak memory at GBytes per minute and lock up a remote machine with no kvm 💀

Thank you ST.

age verification? I used IR ports to send java apps and ringtones around.

shoutout to Coilcraft Inc. for their insane generosity in this age of corporate stinginess

Wanted to disable my rack cooling fans when the HDDs are spun down but I forgot about the toasty PSU that also needs cooling in there.

the reason the current source looks so small and weird is because I want to cheap out on shipping when I send this out for characterization

🤔

Is hashing every single metric I have in home assistant a good source of entropy?

Global warming is out of hand. Got like 10 mosquito bites in mid December 💀

What it feels like to program an RP series MCU.

Dear dumb Realtek crab spirit, why are you waking my laptop back up the moment I close the lid?