tech general - /g/

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>>57395675
best impulse purchase in awhile, sorry for shit pic, only have webcam atm

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computers are not technology, as they are only a misapplication of science.

>>57395707
>>57395691
>>57395675

>Technology's a trap to distract you
>This shit will suck the soul out your ass like a vacuum

https://www.youtube.com/watch?v=EN1owxFCrgs

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get on my level

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>>57395765
OP here.
Reposting old shit

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>>57395790

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>>57395798

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>>57395818
>have so many fucking webms
>never finished anything of it

>>57395818
pretty nice, what did you use for that?

>>57395862
Motocross.
I acctually wanted to build a laptiming system since professional solutions are fucking expensive and my club has not that much spare money. Still not really finished.
Stuff lies in my shed for like 6 months now. Gotta keep working on it some day

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>>57395675

Neat, is this a uC thread?

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>>57395846

What are you controlling that with? I'm using an Atmel 328.

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intresting thread. Made this yesterday for I could not find a BCD2hex converter ic at home. bored so I programmed some spare eproms I have.

after I programmed my eeproms and started connecting it... discovered more people do this: http://bbright.tripod.com/information/postcard.htm and used that as source for connecting my segment displays.

Its a Z80 (left aswell) in a test configuration, will build small cp/m system

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>>57396385
Ok another one, if you guys arent into retro IC, used a Digispark to read some eeproms (i2c)

isnt this called deadbug style?

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About to get started with assembling a power supply.

That's about it, I haven't done much more than keyboards yet. Though my boss wants me to automate parts of the production line, so building some machines should be fun.

>>57396551
>not using a pcb
jesus christ on a pogo stick

>>57395818
What kind of sensor do you use for that?

>>57395890
pleb
do something with an MSP430 or so instead

>>57397985
simple nrf24l01+
build an RFID-like system with em. I have a few thoughts to improve battery life of transponders and accuracy though. But I need to get much deeper into electronics stuff for that

>>57395790
Is that a tiva?

>>57398163
No. Arduino pro mini

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too lazy to take a new picture

who /stm/ here

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I built a PWM fan controller for my PC because I got fed up with how shitty/unstandardized/dumb fan controllers on mobos usually are and didn't want to wait on some SpeedFan support that may or may not come or may or may not work properly. Now that I've built my own shit I have full control over the way it works and it should be compatible with any PC I'll own in the future, as long as USB is a thing at least. The electronics are very simple since it's only generating PWM signals and not changing supply voltage for fans, most of the work went into the FW and in the PC-side control application. I'm very happy with the end result, it (obviously) does exactly what I wanted.

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>>57395675
I built a 10-channel audio spectrum analyzer. I made a mistake during the PCB layout though so the higher frequencies are on the left instead of the right like what would be standard.

>>57398665
cool :D github or something?

>>57398665
>multimeter with nixie clock
the fuck

>>57398972
>clock
Nixies were used to display information on a lot of different devices before other components were a thing (LCD screens/7 seg/etc)

>>57399038
meant to write tubes

And I just assumed all multimeters before LEDs/LCD got popular were analogue

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>>57396793
It did have a pcb at some point...

>>57399058
Nah, digital lab measurement equipment was definitely a thing even before that.

>>57399058
The datasheet/technician manual I found for it suggests it was primarily used by the military. Most educational institutions in the 80s were probably still using analog meters and likely didn't have access to digital meters let alone those with microvolt resolution before the LED/7-segment display was commonplace.

Meter is the Fluke 8375A. I paid a little over $100 on ebay for it working. Internals are remarkable. It basically has one big mother board along the bottom and little sockets that all the different daughter boards slot into and there are loads. One for power, one for filtering, one for ADC, etc. It's a lot like a PC motherboard nowadays. Pretty ahead of its time. I should have taken pics.

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My understanding of electronics doesn't even begin to approach the levels displayed by other people in this thread, but I just made this a couple days ago so it felt appropriate to post it. It's a 2-key keyboard with capacitive keys so I can tap faster in my rhythm games. The board is held on by rubber bands because I don't own a soldering iron and the base is cardboard wrapped in tinfoil.

>>57399209
rubber bands not pictured, I had to add them after this because the board would shift and diaconnect

>>57399209
just buy an iron, mate

>>57398233
What IDE do you use to program the STM32?

>>57399264
Used the Arduino in the past.
Currently experimenting with an IDE-less setup with opencm3

>>57399231
I just looked at prices for the first time and I'm completely dumbfounded at how cheap these are. I just assumed it would be over $50 for any soldering iron, but you can get a cheap one for $16.

Maybe I will buy one, I suppose I might as well since I've already got the breakout.

>>57399354
You can get a shit one for $16. You really should be spending a bit more for a good quality iron. It is worth the money and will serve you well.

Really the most important is getting one with a high enough power output to keep the iron hot even if you are soldering to a big ass copper ground plane that's whisking all the heat away from the tip. Adjustability is another plus. And get a chisel tip if you can.

>>57396464
This is a work-safe board.
Please refrain from posting porn!

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>be me
>be OP
>wanting to start an embedded thread
>that shit wont last anyway
>shitpost instead
>thread goes on and on
I think summer is over, r-r-r-rite?

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>>57395675

>>57399354
>>57399408
A 936d straight from China for 20$ is my recommendation.
Small, cheap, digital temp control, and cheap replacement tips.
Great for the casual soldering.

>>57399434
don't jinx it

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>>57399433
Ow sorry bout that, should I start a separate thread for electronic porn? any intrested ppl? XD

image: not my work, was today at veron con for amateur radio. im a noob in analog electronics. no license. (Apeldoorn, NL. once a year)