Jeff Rowberg

Director of Engineering for BioMech Sensor, #OSHW enthusiast, embedded systems developer. I love learning new stuff and spreading knowledge.

[Jeff Rowberg @jrowberg]

Here's a link to the relevant part of the member guide: https://t.co/b9Rt8CcZb5

From the page: "A health event is any unique health scenario that comes up for a Member and includes all the expenses related to it. It could be something big, like a knee surgery (which might entail doctor’s visits; the surgery itself including physician’s fees, facility, and anesthesia; physical therapy; and pain meds) or something minor, like one of your kids needing to see the pediatrician for a sore throat."

[Jeff Rowberg @jrowberg]

@asphaltwife @RepMTG MTG's screenshot missed the column headings. The orange-tinted left half is the standard membership where you're responsible for the first $500 of each health event. The gray-tinted right half is the "black swan" membership, much cheaper per month but you're responsible for $15k.

[Jeff Rowberg @jrowberg]

Been a long time since I did a Blinky project on a new platform. I’ve never played with @ST_World STM32 before, so I thought it was time to broaden my horizons. Super easy to jump in with the Nucleo G0B1RE using @PlatformIO_Org on Linux. Even got OpenOCD debugging going!

[Jeff Rowberg @jrowberg]

@Promethean @FlexiSpot @Beelinkofficial Sure, that would be great. Thanks!

[Jeff Rowberg @jrowberg]

What do you get when you mount a @Promethean ActivPanel to a @FlexiSpot standing desk frame and drive it with a little @Beelinkofficial N150 mini PC running Linux? The world’s biggest open-source 4K touch table! The possibilities are endless!

[Jeff Rowberg @jrowberg]

“Socialism, like the ancient ideas from which it springs, confuses the distinction between government and society. As a result of this, every time we object to a thing being done by government, the socialists conclude that we object to its being done at all. We disapprove of state education. Then the socialists say that we are opposed to any education. We object to a state religion. Then the socialists say that we want no religion at all. We object to a state-enforced equality. Then they say that we are against equality. And so on, and so on. It is as if the socialists were to accuse us of not wanting persons to eat because we do not want the state to raise grain.”

—Frederic Bastiat, The Law (1850)

Exhibit A.

[Jeff Rowberg @jrowberg]

@VazeKshitij Yes, that’s basically what happened. A bunch of different slave devices on the same bus tried to reply at once. It didn’t work.

[Jeff Rowberg @jrowberg]

Ever had one of those troubleshooting facepalm moments where you finally figure out the problem and then giggle at the absurdly stupid and obvious fix?
If you have 12 peripherals on one SPI bus, make sure you properly configure all CS pins *before* you try to communicate. 🤦🏻‍♂️

[Jeff Rowberg @jrowberg]

PCB engineers: I have a Black & Decker TO1750SB toaster halfway modded to an IR reflow oven. (It works, but I needed more internal volume.) I’d rather send it to someone than throw it out. Anyone interested for the cost of shipping? Relays+controller+thermocouple not included.

[Jeff Rowberg @jrowberg]

I have this extremely specialized custom 3-axis rotation platform full of @Actobotics parts, stepper motors, 6-wire slip rings, etc. I don’t need it anymore, but trashing it feels shameful. Anyone here have some project that could make good use of it?

[Jeff Rowberg @jrowberg]

Once again, I see why the @saleae Logic is my absolute favorite bench tool. Writing a high-level protocol analyzer in Python to decode @MicrochipTech MCP251836 CAN controller+transceiver SPI transactions is about as painless as it could possibly be.

[Jeff Rowberg @jrowberg]

I’ve ordered Digi-reels from @digikey lots of times, but this is the first time I’ve seen this. I didn’t even notice until after I’d loaded it into my PnP machine (which uses simple feeder arrays, or I would have noticed sooner). Do you see it? HINT: this picture is not mirrored.

[Tidy Bytes @tidybytes]

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[Jeff Rowberg @jrowberg]

I decided to implement Chutes and Ladders in Python, which took all of 10 minutes while my kids played it at the kitchen table. Interesting: the average number of spins to win always settles at 39 after a few thousand runs.

[Jeff Rowberg @jrowberg]

@posthamster @ZachWeiner You may be correct, BUT THAT WILL NOT SAVE YOU IN THE FINAL SHOWDOWN

[Jeff Rowberg @jrowberg]

@Chesschick01 @elonmusk @TheBabylonBee Apropos: https://t.co/VYhMSeUj6Y

[Jeff Rowberg @jrowberg]

@BobMurphyEcon Seems to be due mostly to how you interpret the setup (or, less charitably, how good your reading comprehension is). The MythBusters experiment gives one definitive answer, but doesn't accurately follow the setup, because it's physically impossible to do so.

[Jeff Rowberg @jrowberg]

@MiketaMarek @BobMurphyEcon Ah, you're right. The "designed to exactly match the speed of the wheels" clause makes it impossible to run the experiment accurately, like trying to find a frictionless plane for a physics experiment.
10 internet points for @MiketaMarek! https://t.co/63IYOMSthf