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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

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Old 12-16-2017, 08:39 AM   #16
Mill J
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Quote:
Originally Posted by _roman_ View Post
I'm quite certain any pentium 4 beats the hell out of that rasp pi.
When you want to encode something you can use the special instructions which the arm does not offer at all.

for a basic desktop use you can use a pentium 3 notebook wit 850 mhz also. that also plays mp3, can browse the web.

--

Go ahead and compile your gentoo on arm. Than you will see how fast it is. AFAIK it takes very long what I have read in the past. Than crosscompile than you will see the difference.

--

ARM = Nexus 4 Smartphone. It is around 4 years by now old. It gets hot, it is sluggish. it s also arm. You can now argue with me it is not a rasp, but from architecture, and comparison it is nearly the same in my point of view. I think nexus 4 should be more powerful from the cpu, but with much worser heat management. I think nexus 4 has the benefit of more RAM, and 16GB Flash rom on board, which the rasp does not have. It needs an SD card

There are many old smartphones out there? Which are hardly in use. I never understood why none really bothers reusing them.
Ive never run a Pentium 4 so i wouldn't know, But I can easily play mp3 and very easily browse the web with my Pi3.

That nexus argument is warped too, Imagine popping an sd with the OS of your choice in any smartphone and booting.

I don't run gentoo but I see it is well supported.

A friend of mine got a all-in-one Hp 4gb ram at a garage sale for $10 however this doesn't mean you're wasting money buying something that costs more.

And I spent only $35 on my Pi3, this is brand new, i dare you to find any of those computers brand new for that price , I did get a keyboard but just because my old one gave out. The rest of the stuff is things that most geeks have laying around. Except for the power which is very easily overcome by hacking usb cables.....

I'm also assuming you've never tried one. in that case please re-read the Original Post note that he asks who uses. not who doesn't use.
 
Old 12-16-2017, 12:35 PM   #17
fatmac
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FatDog Linux was created originally from Puppy Linux.
http://distro.ibiblio.org/fatdog/web/

PiCore is also worth checking out.
http://tinycorelinux.net/intro.html

All the talk about using an old P4 is valid if that's what you want, but you can put the RPi3 & a mini keyboard in your pocket & take it with you, just need a TV at the other end.

Edit: Forgot to mention, the RPi3 is quiet, a P4 isn't.

Last edited by fatmac; 12-16-2017 at 12:50 PM.
 
Old 12-16-2017, 08:35 PM   #18
Mill J
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Quote:
Originally Posted by Soitgoes View Post
I did some onboard drone projects with an Rpi3.
Hey could you direct me to the resource you used?
 
Old 12-16-2017, 09:11 PM   #19
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Mill J,

http://http://ardupilot.org/dev/docs/raspberry-pi-via-mavlink.html

We were using a pixhawk 4. The ultimate goal was for indoor autonomous navigation. In the end, we ended up scrapping the Rpi3 and opted for a ground station(laptop) to simplify the problem. Our solution for the indoor “gps” was MarvelMind which used ultrasound to triangulate x,y, and z coordinates. Anyway, I digress. We could ssh into the rpi3 and control the drone but to accomplish the entirely onboard autonomous portion was difficult as there were just too many different systems. Sorry if I rambled.

Best Regards
 
Old 12-16-2017, 10:13 PM   #20
Mill J
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Sounds great, I've been looking for something like this for a friend.
Thanks!
 
Old 12-16-2017, 11:03 PM   #21
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I got a banana pi m3 with 1.6GHz cores and 8x of them with 2GB Ram. My attempt to avoid buying another modern laptop. Which failed, the kernel that comes with it doesn't even have snd-usb-audio. And it's barely capable of playing youtube in a modern browser. That said I also have an older pi B, 700MHz core with 512MB Ram, which I'll get around to turning into a print server one day. For now the m3 handles my ethernet switch as a wifi bridge to the ISP facing wifi router. Basically a wifi dongle via ethernet. Recently I got a pocketchip which is good fun. It has a battery, screen, and keyboard, so basically a $70-ish laptop. Barely enough to play the radio on an sdr dongle, but it can with the right minimalist ways. For now it's my radio alarm clock via bash script. I'll probably use it to war drive wifi networks near work someday, and as an mp3 player during work. I just need a little more hardware to make it last 12+ hours versus 5 or less. And pants with bigger pockets.

I'm kind of skipping the 3 this time around. Must have > 1GB ram and gigabit ethernet these days. Hopefully the 4 meets those specs. But we're kind of getting away from the 5W zone that makes these devices so useful. Although still useful to have that spare machine to zero out hard drives or make dozens of copies of usb flash drives without turning your bedroom into an easy bake oven with the audio properties of a small airport.
 
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Old 12-18-2017, 06:53 AM   #22
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Yeah, I'm hoping for at least 2GB ram & USB3 in the next incarnation of the RPi, hopefully it will handle the web browsers of it's day a little faster.
 
Old 12-18-2017, 08:36 AM   #23
pan64
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Quote:
Originally Posted by fatmac View Post
Yeah, I'm hoping for at least 2GB ram & USB3 in the next incarnation of the RPi, hopefully it will handle the web browsers of it's day a little faster.
Yeay, and probably a sata inferface - for an ssd.
 
Old 12-18-2017, 12:53 PM   #24
Turbocapitalist
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Quote:
Originally Posted by fatmac View Post
Yeah, I'm hoping for at least 2GB ram & USB3 in the next incarnation of the RPi, hopefully it will handle the web browsers of it's day a little faster.
There are other boards out there such as the Beagleboard:

http://beagleboard.org/x15

However, as you start to add lots of hardware extras the board quickly goes up in size and price.
 
Old 12-19-2017, 07:32 AM   #25
fatmac
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That looks more like my ITX board.

(I have never seen them for sale over here in the UK.)
 
Old 01-09-2018, 01:28 AM   #26
lilianfornea
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Quote:
Originally Posted by fatmac View Post
Which operating system do you use?
Slackware ARM

Last edited by lilianfornea; 01-09-2018 at 01:30 AM.
 
Old 01-09-2018, 02:45 AM   #27
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There's a few i.MX6 freescale boards (several years old at this point) that have sata. A few of the cubie ones have it too. USB3 and docking stations handle most of my SATA needs these days. By the time you add power to an sbc for the SATA, and a case, you're effectively using a docking station at that point anyway.
 
  


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