Electrical Engineering

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abdullah kahraman

08:24

@JRE hey thanks for your advice!

Asmyldof

08:37

Anyone want to have a stab at how many nanoseconds of Google would have been required for this guy to find that ethernet is not unidirectional on protocol and below layers?

Q: Implement send-only(oneway) Ethernet port

I want to build a Data Diode. In transportation layer of this device, it needs a one-way media as port to send data from side A to side B. All commercial product use SFP. I test some SFP device but they have negotiation between two side and cutting RX fiber is not possible. Is it possible ti imp...

2 hours later…

PlasmaHH

10:52

@Asmyldof that guy must work at siemens, until the early 2000s they had no idea that tcp/ip was two way. their protocol logged in into one side, sent ip:port where that side had to connect back to send replies.

Asmyldof

@PlasmaHH People don't have to work in a specific place to be dumb about stuff. I know this for a fact.

PlasmaHH

11:26

@JRE nurnatur.ch/download/online/0_350_triofanheuschnupfenaugen.jpg ?

2 hours later…

Mast

13:24

Does anyone here have experience with PCB mounted hermaphroditic connectors?

Example, counterpart.

Except those aren't PCB mounted.

Asmyldof

Nor are they hermaphroditic, which you should have known when you posted a "example" and "counterpart" link.

codinginsane

I'm currently using an optical IR sensor for a custom made encoder wheel TCRT5000 but it's too big for my use case. Anyone aware of a smaller IR sensor ?

PlasmaHH

13:42

Its a really good idea to not specify the size that it needs to be smaller than...

codinginsane

13:55

@PlasmaHH smaller than TCRT5000. possibly the smallest that you can find

a size that is idea for 28mm encoder wheel to add two of these IR sensors for speed & direction

PlasmaHH

@codinginsane get some sandpaper

codinginsane

ideal*

with 20 black & white counts

The tcrt1000 is nice but i can't find it on ebay or amazon

Mast

14:12

@Asmyldof Strictly, that's true. What's the correct term for connectors like that where there's both male and female parts but not exactly mirrored?

Asmyldof

Mixed Gender most commonly

Mast

Note to self: those are not the same.

Giskard42

14:43

@codinginsane Something like the QRE1113?

They're tiny, but smd

@codinginsane Oh, here's a through hole version : digikey.ca/product-detail/en/fairchild-on-semiconductor/QRE1113/…

@codinginsane I've also had luck with the QRD series: digikey.ca/product-detail/en/fairchild-on-semiconductor/QRD1113/…

All of which are tiny

codinginsane

15:38

@Giskard42 great! thank you

1 hour later…

Asmyldof

16:38

Making a universal stepper driver can get quite complex, if you try to interpret universal linguistically correctly

PlasmaHH

Explains why my table is moving up and down all the time

Giskard42

@codinginsane NP

@Asmyldof I'd imagine making a linguistically correct stepper motor driver would be quite difficult

Asmyldof

17:09

Main problem lies in autodetection of the motor parameters and how it's connected (randomly allowed)

PlasmaHH

18:02

What is the better question? "What alcohol goes best with painkillers?" Or " what painkiller goes best with alcohol?"?

Asmyldof

@PlasmaHH The latter, as there are painkillers with high and low liver involvement, whereas all alcoholic beverages have the same per ml of alcohol

Whether you want high or low, depends on your mission

Concisely put:
Minimise Cirrhosis/Cancer-Risk vs Cheaper Drunk

Asmyldof

18:20

It's all Tycho's Fault!

Germans Trying To Speak French | Part 1 | Get Germanized /w Melle Athalee & VlogDave

►

PlasmaHH

18:55

Who in their right mind would want to speak French?

Asmyldof

There is no good answer to that

If this motor driver ever gets to working as I envision......

I'll have another product that should sell well, but I can't seem to market properly

PlasmaHH

19:46

I think thats some mutually exclusive features. Either oyu can build stuff. Or market it. Never both.

Asmyldof

20:15

@PlasmaHH You always say you suck at building stuff.... Teamz?

PlasmaHH

@Asmyldof Did I mention the part where I suck at marketing?

Asmyldof

So you're basically just placeholderperson

PlasmaHH

I have great ideas that people then fill in the details. sometimes. occassionally

Giskard42

The adventures of placeholderperson!

Insert adventure here!

He has many amazing abilities, like _____

Daniel Tork

@Asmyldof,that video is good at turning your brain into spaghetti.But I've heard worse.

Giskard42

20:18

and can even ____________

New, from Untitled Comics

Asmyldof

PlaceholderComics Ltd Inc

Daniel Tork

Don't forget about the copyright

Giskard42

He must face off against a deadly villain, $villian, from $ENVIRONMENT_VARIABLE

printf("With a laser death ray that can explode %i houses !", (int) houses)

Daniel Tork

And ability to teleport.Now you make the code for that plz.

Giskard42

cat villian_abilities.txt > comic_script.rtf

Asmyldof

20:26

All too specific

And @Giskard42, your code needs work

Giskard42

@Asmyldof How so?

@Asmyldof Of course it needs work, it's just placeholder psudocode

Ahahaha

@RobertAtkins Howdy! Get the circuit working?

Asmyldof

First and foremost, you have an ENV_VAR that's called ENV_VAR. To make it worse it contains highly specific information

And you only allow for customisation of a number. Should not take more than a few hours to make that just a random sentence

Giskard42

@Asmyldof I had a python example for a library tell me to put a secret key in an env var

Asmyldof

@Giskard42 [esc][esc][esc]ggdG

Giskard42

@Asmyldof I naturally didn't follow their advice, I hardcoded it

Asmyldof

20:38

fmmmnnh

Stepper Motor Driver..... How many bipolar capable outputs?

PlasmaHH

8**8 ? a nice number

Asmyldof

....

Giskard42

I would say about one insane asylum worth of bipolars

PlasmaHH

Giskard42

@PlasmaHH 2 if it's arkham asylum

Asmyldof

20:49

@PlasmaHH How many conductive plastic reel racks would you like to also buy? >.< :-D

Asmyldof