No.368
I like working and building projects, circuit bending (taking things and making them do other shit) and generally being a massive nerd.
Anyone else here actually work with hardware?
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No.393
>>368
>Anyone else here actually work with hardware?
Not really. I wanted to do a few analog and digital hardware projects for years but I never really get down to it.
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No.402
>>368
It's something I'm getting into. I've done a bit of digital design with FPGAs but want to read more into physics before going further with analog. It's not enough for me to see how to connect things together, I need do know why things work.
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No.411
>>368
>Anyone else here actually work with hardware?
Yes, I'm doing Master's in EE, so I'm working on hardware almost every day. It's mostly theoretical work though, we do have projects, but you can't really do anything interesting without learning theory first.
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No.419
>>411
>you can't really do anything interesting without learning theory first.
This is exactly why I hate the "maker" movement. ZOMG I have an 85-IQ and I MADE DIS! Electricks be easy yo.
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No.422
>>393
Meh, not nearly as big as heart attack/mindfuck as you think it is : Learn what you MUST, then get what you MUST, then put 2 + 2 together until done.
>>402
Analog can get super retarded, fast
>>411
So much THIS. I kinda agree with ->
>>419
in that Maker movements get taken out of context and that being able to hold a soldering iron makes you fucking Nikola Tesla. I don't hate them, I think they are a great way to point you in a direction to start picking up Electrical Engineering, I did download a "Make : Analog Synthesizers" cause a guy who builds them put it together.
What fucking bugs the absolute SHIT out of me about 'Makers' is their complete inability to link to other sources/projects/learning material, like the fucking project they sketched together should be Copyright.
I think this comes from other 'Makers' putting together kits and selling them…
My project is a 4 square by 4 square of Plexiglass and Conductive Tape that transmits to a 'brain' capable of spitting out waveforms or samples based on what was touched.
Modify by adding more of these blocks and telling the 'brain' which block is which on a Grid. Beyond that just some LEDs to tell you what you triggered and a LCD/character display for readout
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No.424
>>422
>What fucking bugs the absolute SHIT out of me about 'Makers' is their complete inability to link to other sources/projects/learning material, like the fucking project they sketched together should be Copyright.
Unfortunately, there are niggers that only reply back with "Google it lmao" and nothing else. Have a project that seems like potential:https://github.com/adereth/dactyl-keyboard
I don't know where to start with making a custom keyboard, but I'd like to make this once it's refined.
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No.425
>>424
There are several of these style of keyboards over on thingiverse, both geekhack and deskthority also have documented builds on their forums. There's no point in waiting for more refinements to the basic concept.
When it comes to keyboards I want to take one of the many thinkpad laptop keyboards I've got lying around and turn into a USB keyboard with integrated mouse.
https://web.archive.org/web/20171028134426/https://www.tomesoftware.com/usb-thinkpad-laptop-keyboard/
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No.426
>>422
lol it's almost 2020. Analog is like, last century. Just like get a Arduino or Raspberry Pi and join the rest of us MAKERS in the current millennium. What will you create? Check out this project, it blinks an LED when it's time to take my hormone replacement medicine! Who needs math and physics when you're a soldering iron wielding pythonista.
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No.445
>>424
Thanks anon. Mine is less a keyboard and more a configure-able MIDI device. I'm doing it more as a way to understand what the hell is going on under the hood of the occasional digital instrument I buy.
>>425
I have a ThinkPad that just needs to have its keyboard replaced…bought it for a hundred bucks as I laughed internally at the guy selling it to me.
Thanks for the link anon, as I have no idea what I am doing in Keyboard/Input Device construction (as in physically)
>>426
Have a (You)
As I work on the bottomless pit of EE, I have more respect for people who do work on stuff that is designed for ONE thing and shitloads less for the people who do generalized shit. Yeah, you had a hand in the new IPhone Whatever, but YOU didn't do the PCB, or the ICs, or the number of things that actually improved it. You just said 'The screen should be crack resistant' and danced out of the office
Picked two things I'm gunna use ->
> MTCH108, $1 + parts
8 Cap Touch Sensors
8 Drivers for LEDs
Adjustable Sensitivity
> CD74HC, $1 + parts
Simple Multiplexer for driving two sensors
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No.452
>>445
Cause I actually design shit, here -
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No.454
>>411
>Yes, I'm doing Master's in EE, so I'm working on hardware almost every day. It's mostly theoretical work though, we do have projects, but you can't really do anything interesting without learning theory first.
NOT true, The good thing about being self-taught like me, is you learn what theory is simply incorrect and thus separate it from correct theory and learn only correct theory. But most people are incapable of teaching themselves anything because they are talent less. That is why the University system was invented. To mass-produce professionals from ordinary every day idiots.
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No.455
>>426
>lol it's almost 2020. Analog is like, last century.
Digital is analogue and analogue is digital. They are one and the same. Analogue is completely relevant today.
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No.456
>>454
Elaborate, I wanna have a laugh.
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No.457
>>456
OK! how about, how a wire at very high voltage ac or dc is much better insulated in practice by going (wire -> thin poor conductor -> thin semiconductor -> thin excellent insulator), rather than (wire -> thick excellent insulator).
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No.458
Not for signals, Just delivering power.
Or how Metal whiskers almost never form on lead based joints, but form on almost all other metals Gold, Silver, Tin alloys, pure copper etc, this is a major problem that NASA has tried to fix by encasing circuit boards with different hard plastics.
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No.459
Or how Single electrons in good conductors move extremely slowly. Roughly 0.03 mm per second for a one amp current in a 2mm diameter circular cross section diameter copper wire, but the electromagnetic wave (wires are essentially wave-guides) transmitted by all these simultaneously moving electrons is about half the speed of light in practice.
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No.460
>>454
>you learn what theory is simply incorrect and thus separate it from correct theory and learn only correct theory
How do you manage to get across "incorrect theory" in the first place?
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No.461
>>460
>How do you manage to get across "incorrect theory" in the first place?
Does not make any logical sense in theory and does not adequately explain real - world behavior.
For example, the speed of an electromagnetic wave in a wire can be drastically changed depending on what insulation surrounds the wire. This is because the electric field surrounding a live wire travels outside the wire at half to two thirds the speed of light. Since it travels through the insulator surrounding the wire, it can be slowed down by certain insulators more than others.
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No.462
So you can increase the speed of a CPU by changing nothing but the bulk insulation material (noncrystalline Silicon, Silicon dioxide, sapphire etc) whilst keeping the MOS transistors and Copper interconnect exactly the same.
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No.463
and keeping the voltage/current the same.
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No.465
>>455
It be sarcasm autistanon.
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No.466
Does anyone have a decent understanding on MCUs here? I'm looking for a non-Arduino MCU for my touch sensor. Due to some…bad design/found better parts. I'm looking for a relatively easily programmed and not so expensive MCU…
(Continues to search)
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No.467
>>465
>It be sarcasm autistanon.
That wasn't the point, I think the whole Analogue Verse Digital dichotomy is kind of artificial.
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No.468
>>466
PIC sounds like the obvious choice.
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No.519
>>458
>>457
>>459
>>461
Thank you for your contribution.
>>467
I've heard that the bridging concept is Cybernetic. You should read Kant. A counter: Since analogue and digital is artificial, then you know that concepts exist to be efficient and effective machines/functionaries of the mind, yeah? Then the dichotomy exists for the same reason anything else does; it's a matter of economy and engineering. If nothing was artificial, you'd have nothing but a homogenous substance of absolute dullness and inertia which may dissolve to an omnipresent inertia and resistance to change that is impossible to feel as a substance but only as inertia. Artificial means to artifice or something, then. To make into an artifact? It's fucking will and remainder, mate.
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No.564
>>519
Do you ever think about the meaning of your own writing? Or is this a word Salad exercise?
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No.565
Maybe there is a meaningless word Salad room on riot for mindless rambling masquerading as "philosophy". This is the bread and butter of leftist vagina academics who are parasites on the welfare state. All they are interested in is creating the illusion of ideas when they have none, so they can get that tax-payer funded grant money.
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No.566
>>468
I second PIC, the original PICKIT for windows was excellent, but haven't used it in years, so I don't know how good it is now.
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No.569
>>466
Don't listen to
>>468
>>566
and stop using 20+ year old technology. Use ST microcontrollers. Starting from <$0.50 (1 qty. STM32F0 series) with 32-bit cortex M0, 4K RAM, 16K Flash, 48 MHz max CPU clock. You also don't need any fancy programmers, any UART adapter will do, since they have hardware bootloader. There is no reason to use PIC or Atmel (unless you need DIP packages, but even then you can buy breakout boards). And if you get cheap chinesium ST-Link programmer you can debug while your software is running (breakpoints, watch variables live). For comparison PIC for $0.70 has 3K flash, 72B (lol) RAM and max clock of 20 MHz. You need an expensive programmer on top of that. I also forgot to mention that gcc has excellent support for ARM Cortex processors.
In case you're wondering what kind of hardware you can get for price of ATmega 328p $2.3 (STM32F401RBT6 same cost as Atmel):
- 84 MHz Cortex M4 with FPU (105 DMIPS), Adaptive real-time accelerator (load selected code in embedded cache to make it run even faster/no need to fetch from flash/RAM)
- 128K Flash
- 64K RAM
- 16 channel 12-bit A/D converter
- DMA (good for graphics, DSP - filters)
- I2C, USART, SPI (3 of each interface)
- USB device or host
- 11 timers
- lower power consumption 128uA (300uA for 328p)
>but I can't solder 0.5 mm pin pitch SMD
It's not that hard, I've done it with fat chisel tip and a bit of flux
>but muh breadboards/perfboards
JLC can make you 100x100 mm PCB for $2 and ship it to you for $3 ($5 total) in a week
>but STM32 is hard to program
You get loads of code generators and libraries, starting from scratch is also not hard, just copy over startup code and register definitions then complie with make.
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No.769
>>569
>STM32F401RBT6
I know this is a almost a week later, but thanks for pointing me in the right direction. I have been figuring out programming and chips I like, and STM32 is def the best way if you already have an even base amount of knowledge of micros.
With a 32-bit processor at even mediocre (40 MHz) would be good enough to work with a decent amount of math for effects and layering so I could do something like this with a sequencer/sampler
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No.786
>>769
It would certanly be intersting for audio applications, some versions of that MCU have built in 12-bit DAC.
https://www.youtube.com/watch?v=USMPAl1WY0I
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No.791
Is there a better logic simulator on Linux than Logisim? Or will I just have to write my own digital circuit simulator?
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No.792
>>791
GHDL or download some version of Xlinx Web Pack or Altera IDE (with Quartus you can even draw your logic gates if you want), you get simulation for free + synthesize for FPGA. Complex logic circuits are all VHDL or Verilog, nobody draws schematics, if you need that, logisim is plenty good enough. You can also use spice and simulate in analog domain.
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No.795
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No.797
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No.819
Has anyone built an automatic irrigation system with single board controlling? I know the Arduino can power a 5v solenoid valve, but I'm wondering if this will be powerful enough to handle an outdoor faucet. I'd like to irrigate 12-16 large pots using a moisture sensor as a trigger.
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No.854
>>819
Yes, this is so easy and you can keep the moisture content to between 76% and 78% easily.
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No.865
>>819
Read the valve datasheet, read the arduino datasheet, do the math on power required vs power available: if you come up short, use the arduino to pilot a relay instead of directly piloting the valves.
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No.899
>>792
Thanks for the suggestions anon, I'm a little disappointed Logisim is the best we have for playing with digital logic virtually as it runs pretty slow on my old machine. I'll investigate Spice more.
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No.911
>>791
>Is there a better logic simulator on Linux than Logisim
Your own fucking brain…………
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No.1225
Right now I am working on the project that will use most of those 6 digit alpha numeric displays to create a LED text book thats 4 digits high by 18 across. I found a great way to solder these displays together and multiplexing. I will post an update once i receive my wire and other parts.I ordered a soldering projects kits (here is the link for your convenience https://diystadium.com/solder-project-kits-review/ ) . Keep you posted soon
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