/tech/ - Technology★

>>952791

Get an AVR if u want 2 be a pro.

>>952804

Oh, yeah?

Because the MCU in the Arduino UNO isn't a "AVR"?

Who cares what chip you're using?

Logic is logic.

If you can't port your programs from one chip to another you don't understand your own programs, and that's really bad.

>>952805

>>952804

Get an Sifive/Hifive instead. Arduino compatible, but a really fast risc-v chip.

>>952805

Yeah but you pay extra money for arduino.

>>952811

Exact copies are around 10 bux, just make sure that the bootloader chip is an mega16u2, not the chinkshit380.

You could join the goons or you could have two microcontrollers in one.

https://hackaday.com/2014/11/30/using-the-second-microcontroller-on-an-arduino/

Learning C programming with Arduino? What the hell? Dude. Just read the anotated C standard. After that, read the K&R books for some algorithms and other incites. I doubt you would get much more with a book with that title. It should be called Learning to Program Arduino Using C.

>>953337

It goes both ways.

You learn C and discrete logc with an Arduino.

I'm also interested on the HiFive, I haven't bought one because I fell like I'm going to be wasting the potential it has, because I haven't used a shitty Uno knockoff at it's fullest yet.

>arduino

shits i haven't made any project sing it past 2 years. last time i was making lucid dream google with it. now it's currently wired to my orange pi zero, but doesn't serve real purpose (at least i keep them from dust)

>>955520

are you me? (but pretty sure i'm lot retarded though). try go to demonoid, search Python, or Python basic, there are good uploader which got udemy collection pretty good for starter. personally i prefer to watch video tutorials first, later go to deeper with books or pdf

best of luck anon, that's how i struggle back then when trying to learn Python, which also my first programming language for me too

>>955532

>but pretty sure i'm lot retarded though

It's not being retarded, it's lack of knowledge.

Acknowledging your weakness is a huge step for getting out the retard area.

Keep feeding that brain.

>>955574

welcome to r/tech, most sunny helpful positive subreddit ever conceived.

just trying to make you redditfag feel at home you stupid cunt

>>952804

>Use an FPGA

>Nah go pro and use a micro-controller.

>>955711

Everyone has a genius mind trapped in a retard brain, you just need to coddle them enough to set it free!

>>955714

Nah, it's lack of willpower what causes that.

>I-I can't do that

<Fuck off, someone else did it, so can you.

>>952791

>This is /tech/ anon... get yourself a real dev board that uses a fpga.

Many companies including Arduino are coming out with FPGA boards--but most Arduino-level people don't know what to do with an FPGA, that would really call for an FPGA.

there's just not a lot of high-data-bandwidth projects going on in the arduino landscape.

If you want to be an arduino power user, you are better off with a Mega clone for $7 or maybe a Due clone for $13.

and really,,,, most of the projects using Unos use very little of the flash memory, and have the processor just waiting 99% of the time.

You don't need an ARM or an FPGA for an automatic pet-feeder or plant water-er.

>>952807

>Get an Sifive/Hifive instead. Arduino compatible, but a really fast risc-v chip.

320 mHz, 128MB flash

pretty sweet, but [Buy now $59]

Also I am one who feels kinda silly using vastly overpowered hardware than a task really calls for.

I have some Due and Teensy boards around, but all my projects have used Unos or Megas so far.

Programming Arduinos *IS* easy to do, however. They made them to teach school kids how to program and do basic electronics.

You do need to learn some things, but you don't need to know everything about programming or electronics to use one.

>>956358

(quoting myself)

One thing I have wondered about is building an "anonymized" computer for web browsing.

In other threads people talk about the botnet and about all the telemetry stuff in Windows and Linux.

They talk shit about having some kind of secure PC CPUs made, but that is a dream that ain't happening.

I am wondering if anyone is trying to build their on "netbook" based on a real-time board like an Arduino or similar?

1. There are 800x480 screens already available that have Arduino drivers for. That's not great, but it is "bare metal" that isn't hiding anything ugly.

2. There are ethernet and wifi modules already available.

3. Using a PC keyboard might be a bother, but building (some kind of keyboard that will work) isn't much of a problem... You can get 12-key analog modules from RobotDyn, and put 4 of them on a 16-channel analog multiplexer. That would give 48 keys easily...

4. You would need to code a basic HTML interpreter, and you would need to display jpegs and pngs.... That would be most of the work here, but it doesn't seem to be out of the realm of possibility. Especially if you did it as a "scripting" program, with the bulk of the data stored on an SD card (because the Arduino Due board only has 256K of storage, but SD cards are multi-megabyte).

5. I think trying to run Javascript would be a much larger task. Dunno how well that would work. I would think that you would not need 100% of Javascript, you would just need to handle the more-common stuff that is used.

You'd never run the multimedia shit, but oh well. You should be able to do most HTML and some Javascript.

If you REALLY wanted a "sterile" internet computer, it doesn't seem to be out of reach here. There's just some coding work to be done. Is anybody doing this?

>>956362

Yeah that shouldn't be too terribly hard at all. The hardware already exists. People do similar shit with raspberry pis. The bitch is writing the software.

>>956383

>People do similar shit with raspberry pis.

I don't like RPis due to the lack of a real hard-drive controller.

A common problem is early burn-out of the SD cards used, due to the huge amount of writing that occurs. The USB boot option is a one-time change, and is also a performance hit on a system that isn't that great to begin with.

If they come out with an RPi that you can connect a regular SATA drive to, I'd be way more likely to get one. The {SD card as system drive} setup is very low-power and very portable--and I realize that a lot of people want that--but the lifetime is just not that great. And the boot-from-USB takes a performance hit, on a system that isn't that fast to begin with.

>>956509

I don't get it? Does this Arduino have a SATA port? And is it a *real* SATA port, and not a USB<->SATA kludge? (for example, one of the Banana Pi board uses this hack).

Anyway, can't you just set your OS partitions to read-only on the SD card, and put stuff like /var/log and /tmp on a memory filesystem? Then you just use a USB disk for your data and other shit.

Anyway some other ARM SBCs have real SATA ports. There isn't just RPI.

>>956509

>>956542

The arduino doesn't but it's a simple microcontroller, you can compare that to a full fledged computer, even if it's as big as the microcontroller board, there's more stuff in a Pi than in an Arduino.

>>956756

>*you can compare that to a full fledged computer

*You can't

>>956509

>A common problem is early burn-out of the SD cards used

As >>956542 said, use a read-only squashfs partition or mount ext4 with ro in fstab (you can then remount rw to make edits). Mainstream distros can make this difficult so read into Buildroot for a useful tool that makes a full embedded Linux system.