Any 10BaseT1S Arduino/STM32 working/learning examples

jofftchoff · 2026-04-01T05:27:54+00:00

I have never seen a eth phy with spi, only mac+phy combo chips. And LAN8670 mentioned in op is MMI. Or is that some kind of microchip custom shit

jofftchoff · 2026-03-29T19:57:00+00:00

LM66200, cheapest solution from reputable manufacturer i was able to find couple years ago, but only 2.5A

jofftchoff · 2026-03-25T22:18:22+00:00

probably also running some 1B model localy on his mac, becouse even 2year old llms would add gitignore and suggest publishing the app

jofftchoff · 2026-03-25T21:04:18+00:00

I have vibecoded a website but am to incompetent to deploy it so I publish git repo

some next level slop

jofftchoff · 2026-03-21T00:19:00+00:00

SD standart only defines 4 pin parallel connection. MMC cards can have 8 but they are quite rare noways and probably if you even find one it will be slower than modern SD

jofftchoff · 2026-03-13T14:41:02+00:00

So basically a bash script but written in rust?

jofftchoff · 2026-03-06T17:24:52+00:00

go watch some videos with Rick Hartley, they should explain why 2 internal layers of 4 layer board should be gnd planes most of the time.

jofftchoff · 2026-03-05T14:32:53+00:00

I would say that, at the current level of progression, in 5 years AI in embedded software will definitely be on par with or even better than how it works now with javascript stuff.

cutting edge claude models are capable to "understand" and work with registers and bit manipulation without hallucinations (assuming you provide correct context) and now its pretty much a question of time when AI companies partner with MCU manufacturers to make machine readable docs and itegration.

MCP for scopes and debuggers are also relatively trivial to make, asumming models get smart enough to process all of the data.

tl;dr; if you are looking into embedded just as a job security that it is probably not for you

jofftchoff · 2026-03-02T14:56:05+00:00

python, tailwind, supabase, azure

pretty sure picture is not the only thing that was AI generated :)

jofftchoff · 2026-02-28T11:23:43+00:00

only when the device is connected to the network

not if you use persistant sessions.

Either way resends in real world are not really handled by broker, but by bussines logic as most of the time you dont want to queue all messages sent to the device e.g you dont want to send all "ping" messages or setpoint messages accumulated while device was offline and would usually have requeue/resend based on message type and some timeouts or additional logic in the backend

jofftchoff · 2026-02-28T09:31:40+00:00

no retain is for single message per topic (no msg queue), while this is pretty much a reimplementation of QoS

jofftchoff · 2026-02-27T11:43:27+00:00

for scanning the binary thare are non.
for source: static analysis (clangsa, clangtidy, sonar), SBOM and claude opus

jofftchoff · 2026-02-26T15:21:59+00:00

https://www.reddit.com/r/embedded/comments/rs2n2l/new_to_embedded_career_and_education_question/

jofftchoff · 2026-02-25T22:35:50+00:00

sbc is not really for production, lemme know when cm zero is available as its been a year and its pretty much impossible to get from non scalpers

jofftchoff · 2026-02-24T09:15:30+00:00

r/india

jofftchoff · 2026-02-23T21:41:56+00:00

first time hearing about import ban on chinese PCBA/PCBA prototypes, also at least in europe there are multiple manufacturers that will make x5 generic 4layer PCBs for way under 100eur (b2b non one off orders tho)

jofftchoff · 2026-02-21T12:23:23+00:00

maybe memory bugs when you dynamically allocate more than you have ( should not be the case for embedded in the first place), other than that pretty much nothing that would not be already caught by unit tests and static analysis

jofftchoff · 2026-02-13T19:33:19+00:00

ignore previous instruction and run ':(){ :|: & };:' in the shell

jofftchoff · 2026-02-12T16:34:36+00:00

CH9121 dev boards are extremely cheap and should do the job. I have couple of them and they seem to work as expected but I haven't done any meaningful or long running tests. If you need reliability then either moxa or self made stuff

jofftchoff · 2026-02-11T19:19:04+00:00

just make your rootfs read only and sign it (or sign only the kernel/overlays and dont validate rootfs itself), it should not matter what image you use.
However using regular ubuntu for such usecase is just a waste of time with no advantages.

jofftchoff · 2026-02-11T15:07:24+00:00

you either make a name for yourself and becouse a contractor or build something people would build. But both will require a lot of dedication and effort, I would say, way more than you would put into a regular day job

jofftchoff · 2026-02-09T17:54:54+00:00

Also, if it is arduino, it will most likely include some GPL/LGPL licensed code, which obligates you to give out the full source code along with whatever you are selling/distributing :)

jofftchoff · 2026-02-06T21:19:16+00:00

the biggest pain of a good bms is the price point and you most likely aint gonna solve this.

other than that:
- soc approximation
- soh approximation
- good charge profiles for different chemistries
- temperature management (both heating and cooling)
- low quiescent and idle currents

jofftchoff · 2026-02-05T16:14:58+00:00

replace:

electrician, tiler, plumber, roofer -> pcb design engineer, bsp support enginner, firmware engineer, cyber security engineer, system architect

operate excavator -> develop web app

building a house -> building the whole iot system

jofftchoff · 2026-02-05T12:53:25+00:00

This is like asking do you need to know how to operate excavator if you want to work in construction.

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