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🔪 Joel May-Kill 🔪

@jpm@aus.social

mastodon 4.7.2

I’m Joel, the WiFi whacker, network noodler, IoT idiot, Linux licker, and security spooner. Can C, a bit Rusty, also Bashing Pythons. Now contains at least 65% shitpost by weight. Meets or exceeds ISO3533:2021 standards. Not for human consumption. Not for animal consumption. Not for quality or training purposes. Best viewed with Netscape Navigator 4.0.

Geek for hire - if you’ve got a cool project let me know!

1194 Followers

1029 Following

50 Posts

Joined October 30, 2022

Pronouns:

he/him

Location:

Naarm (Melbourne) ’ish

Tindie Store:

https://www.tindie.com/stores/joelpmichael/

🔪 Joel May-Kill 🔪 @jpm@aus.social

· 14h ago

RE: https://infosec.exchange/@BleepingComputer/117399431102325226 NextGenerationFirewall *drink*

Quoting

BleepingComputer

@BleepingComputer@infosec.exchange

SonicWall has released hotfixes to address a maximum-severity server-side request forgery (SSRF) flaw in SMA1000 series appliances. https://www.bleepingcomputer.com/news/security/sonicwall-warns-of-max-severity-ssrf-flaw-in-sma1000-gateways/

Open quoted post

infosec.exchange

BleepingComputer: "SonicWall has released hotfixes to address a maxi…" - Infosec Exchange

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1d ago

Biblically accurate potentiometer #StraightOuttaShenzen https://www.aliexpress.com/item/1005007527146861.html

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2d ago

Replying to

At least, Random Friend should be almost bulletproof as a dev board: ESD diodes on every header, fuses on every power input and output. It’s kinda grown legs. And arms. And bells and whistles and gongs. And tentacles.

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2d ago

Replying to

@s0@cathode.church You're not far off!

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 6d ago

Replying to

@shlee@aus.social it’s only a MongoDB if it’s a RDBMS from the Steppes of Mongolia, otherwise it’s just sparkling data corruption

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Weird invertebrate behaviour

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

It is time, for re-work crime

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

Looks like a real thing now!

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

Yeeeeeeeee!

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

Trust the surface tension. Trust the surface tension. Trust the surface tension. Trust the surface tension. Trust the surface tension. Trust t

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 6d ago

Replying to

@backupbear@aus.social @shlee@aus.social or, as @abstractcode@eigenmagic.net so eloquently puts it: MongoDB is just short for “this data is unimportant”

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

PTH hand-soldering done

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

What, you reckon this 4x4mm MOSFET will conduct 80 amps for longer than like 1us?

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

… duh of course this will show continuity, it’s a goddamn fuse

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Thinking about doing horrible things to an ADC to generate random numbers.

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

Oopsiedoodle, I bought and put wrong resistors for the “precision enable” voltage divider. Enable voltage is 4.9V. Which a USB port and shitty cable might not reach…

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

No more tombstone

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

And fuse is nicely centered now

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

No more bridge

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

Yeah okay this works stupidly well. The smallest footprint on the board is this SOT-563, and I can’t see any green soldermask on the first position attempt

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to

Okay LCSC, show me the cheapest TO-92 N-channel MOSFETs you have

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to

Input Capacitance ** Output Capacitance ** Reverse Transfer Capacitance ** Turn-on Time ** Turn-off Time **

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Hey @lcamtuf@infosec.exchange it arrived in Australia!

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to

@azonenberg@ioc.exchange they retail chain does put particular emphasis on “THE Athlete’s Foot”

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to

@mike@social.chinwag.org I’m convinced that it’s the bread roll that makes the bánh mì

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

Getting there…

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to on eigenmagic.net

@NewtonMark@eigenmagic.net and Oracle gonna go splat: https://finance.yahoo.com/technology/ai/articles/oracles-ai-bet-just-sent-202854124.html

Oracle

Oracle shares fell about 4% as concerns over debt and a New Mexico data-center project weighed on sentiment.

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to

@lcamtuf@infosec.exchange UPS claims it landed in Australia, then went on an adventure in Singapore for a couple of days before returning

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Man Durphy’s

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to

On the other hand, 3.318V is only +0.5% from 3.30V, and is within the design goal of +/- 1.5% voltage regulation!

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

Only things left to do is test with 12-24V input, stick a big load across it, and measure output voltage ripple

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

@oxy@social.bsdlab.au look the answer “China” fits both.

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

@oxy@social.bsdlab.au but specifically I usually get PCBs made by JLCPCB. They’re fine for anything that’s not seriously high-speed or frighteningly high-density.

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

1 tombstone

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

1 bridge

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

Ugh done. Now bake at 250°C for 30 seconds

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

2 down, eleventy billion to go. 1mm division ruler for scale

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

Oh dear, I think this paste has turned to shit. I’ll give it a go anyway because there seems to be the correct amount there

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

Hand-placing time! I need a PNP machine

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

@oxy@social.bsdlab.au the… what?!

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to

@azonenberg@ioc.exchange they’re in .au as well, always struck me as a weird name

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1d ago

Replying to

@Unixbigot@aus.social pretty sure it is, yeah

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to

Okay, 24V input “works” - except for the 5-24V DC input power LED circuit. Whose stupid calculations came out to a 75ohm series resistor for the Zener circuit? Yeah of course the Zener diode is going to start smoking when it tries to dissipate 1.2W of heat.

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to

Oh of course, it's a 2N7000, for $0.045 each (MOQ 20) https://www.lcsc.com/product-detail/C2910414.html

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to

**These parameters have no way to verify

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 1w ago

Replying to

@azonenberg@ioc.exchange yep, but also a retail chain of athletic footwear

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🔪 Joel May-Kill 🔪 @jpm@aus.social

· 2w ago

Replying to

And possibly a movement, I’ll have to test this for continuity

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