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by bensimmo
Wed Jul 17, 2019 3:02 pm
Forum: Raspberry Pi Desktop for PC and Mac
Topic: Just tried a fresh install, disappointing...
Replies: 10
Views: 237

Re: Just tried a fresh install, disappointing...

It's not always that site though. It just happens to be for that router/DHCP/server/gateway/portal you are using.
It could be any IP address depending on the setup.
For example I was connected to one yesterday and it was 192.168.144.1 .
That's one that didn't work very well.
by bensimmo
Wed Jul 17, 2019 7:25 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: Just tried a fresh install, disappointing...
Replies: 10
Views: 237

Re: Just tried a fresh install, disappointing...

Would the add blocker get in the way. Its still at Stretch iirc, didn't see a buster release when I looked a few days ago. Hotspot portal things are hit and miss with my mobile phone Android N / 7. But its the same with the families phones and tablets with newer version. Some work, some don't and so...
by bensimmo
Wed Jul 17, 2019 7:14 am
Forum: General discussion
Topic: A Pi Pie Chart
Replies: 111
Views: 9509

Re: A Pi Pie Chart

Just note the Overclock though, I assume most boards will run at it, it the one Tom's Hardware used in thier announcement and I just copied it straight off. It a 17% frequency increase. It'll probably go faster as it not sweating with just a gentle fan blowing over it. No doubt we'll see these faste...
by bensimmo
Tue Jul 16, 2019 7:34 pm
Forum: C/C++
Topic: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?
Replies: 171
Views: 3481

Re: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?

bensimmo, Hmm... So what we need, with global warming and climate change in mind, is a complete life cycle energy usage analysis from the moment a person starts learning how to program a computer to the moment they finally create a program that computes the correct result. We can assume they stop r...
by bensimmo
Tue Jul 16, 2019 9:42 am
Forum: General programming discussion
Topic: Project Digital Apocalypse Not Now
Replies: 727
Views: 27386

Re: Project Digital Apocalypse Not Now

I have no idea what popular fictional characters those might be. Perhaps we can find something.
You mean, like if the teletubbies was still popular?
by bensimmo
Tue Jul 16, 2019 9:27 am
Forum: C/C++
Topic: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?
Replies: 171
Views: 3481

Re: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?

What was the overall time of each. From scratch, too write, to compile and run (or just run) and get the answer? More typing must take longer (assuming same skill level) Was the compile and run faster than the just run? Which is more efficent then? Which one can most people understand without dedica...
by bensimmo
Mon Jul 15, 2019 7:26 pm
Forum: Troubleshooting
Topic: Issues with wireless mouse and keyboard when USB 3.0 HDD plugged in
Replies: 6
Views: 145

Re: Issues with wireless mouse and keyboard when USB 3.0 HDD plugged in

USB 3.0 causes 2.4GHz interference and your mouse is using that for the wireless link. Try moving the receiver away from the HD and its cables. Try a different USB 3.0 cable for the HD as well. Some of them are very poorly shielded. It happened to my Logitech MK270 too, and that was a SanDisk Ultra...
by bensimmo
Mon Jul 15, 2019 4:38 pm
Forum: General programming discussion
Topic: Comparing Interpreted Language Speed.
Replies: 43
Views: 978

Re: Comparing Interpreted Language Speed.

But which language makes rotating an ever increasing 3D Fibonacci curl while strobing an external led and measuring the temperature while making a nice sound scale. These "interpreted" languages are all built on someone else's code, just because it binds to something to get it done, doesn't mean the...
by bensimmo
Mon Jul 15, 2019 3:31 pm
Forum: General discussion
Topic: A Pi Pie Chart
Replies: 111
Views: 9509

Re: A Pi Pie Chart

Quick first test at the desktop with temps being displayed in the top corner. (This is a slow fan blowing down-ish over the naked Pi. It is also a quick overclock test. Worked first time and has been looping an webgl2 aquarium for over an hour, room temp probably 24ishC) 1.75GHz ARM / 600MHz GPU / +...
by bensimmo
Mon Jul 15, 2019 1:30 pm
Forum: General programming discussion
Topic: Comparing Interpreted Language Speed.
Replies: 43
Views: 978

Re: Comparing Interpreted Language Speed.

Benchmarks of turning LEDs on and off, how fast they can read square waves of the gpio. Something a bit more useful to a Pi user? Creating a rotatable object on screen? Playing a bit of music? None of this boring single task number crunching. May as well just do some [email protected] or other BOINC project...
by bensimmo
Mon Jul 15, 2019 6:58 am
Forum: General programming discussion
Topic: Comparing Interpreted Language Speed.
Replies: 43
Views: 978

Re: Comparing Interpreted Language Speed.

Can you list the allowed interpreted languages. To many of them do fancy things other than read a line, run and instruction, read another and do that. Many do a bit in between, python, basics, JavaScript are all a mixup iirc. The world's too fuzzy to set limits. 32bit unsigned, is that a limit of yo...
by bensimmo
Sun Jul 14, 2019 8:40 pm
Forum: Raspbian
Topic: Raspbian 'Buster' 2019-06-20 / 07-10
Replies: 106
Views: 11898

Re: Raspbian 'Buster' 2019-06-20 / 07-10

I clicked this, that the other and found that the number you give https://github.com/raspberrypi/firmware ... a617553e7b
has a parent of
https://github.com/raspberrypi/firmware ... 920ad7c605
by bensimmo
Sun Jul 14, 2019 3:52 pm
Forum: Raspbian
Topic: Raspbian 'Buster' 2019-06-20 / 07-10
Replies: 106
Views: 11898

Re: Raspbian 'Buster' 2019-06-20 / 07-10

Seems an updated image has been released (just apt update/upgrade and you'll get these anyway). Out of interest here is the changlog 2019-07-10: * Clearer options for switching of Pi 4 video output in Raspberry Pi Configuration * Option added to Appearance Settings to move taskbar to second monitor ...
by bensimmo
Sun Jul 14, 2019 3:19 pm
Forum: General discussion
Topic: I didn't think the usb c power thing was a big deal...
Replies: 92
Views: 3904

Re: I didn't think the usb c power thing was a big deal...

If an LCD doesn't flicker, then why when I wave my hand in front of it, does my hand have 'steps' in position? What has this got to do with USB-C ? No I don't know why I would want to watch in p60 over p30, mainly as I haven't done enough of it. But it is there, people do it. Gamers certainly stream...
by bensimmo
Sun Jul 14, 2019 3:16 pm
Forum: C/C++
Topic: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?
Replies: 171
Views: 3481

Re: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?

2.5seconds 'on your pc' means nothing, other than to you.

How does it run on you RaspberryPi (and model of course to compare)?
by bensimmo
Fri Jul 12, 2019 6:01 pm
Forum: General discussion
Topic: I didn't think the usb c power thing was a big deal...
Replies: 92
Views: 3904

Re: I didn't think the usb c power thing was a big deal...

The term "charger" is often only a lingering legacy term when used with top-end power supplies. It has almost become a colloquial term for whatever connects between the mains and the device, which just happens to power the device and charge its battery. Nobody calls an ATX power supply a charger. I...
by bensimmo
Fri Jul 12, 2019 1:01 pm
Forum: General discussion
Topic: Steep learning curve for me
Replies: 1
Views: 183

Re: Steep learning curve for me

There are 4 cores, so you'll need [email protected] optimised for the Arm A72 processor. I doubt there will be anything the VC6 'gpu' can do for you. Temperature can be measured, some voltages measured. You'll want some fans to blow over them to keep them cool. I do not know if 1GB will be enough or if 2/4 ...
by bensimmo
Fri Jul 12, 2019 11:32 am
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 705
Views: 60598

Re: Raspberry Pi 4 Thread - general discussion

DarkPlatinum wrote:
Fri Jul 12, 2019 10:45 am
Ts sad to see overpriced Pi 4B on amazon.com and amazon.co.uk. Does the Raspberry Pi foundation have any verified sellers that sell the Pi 4 on amazon?
PiHut do/will.
by bensimmo
Fri Jul 12, 2019 7:15 am
Forum: General discussion
Topic: I didn't think the usb c power thing was a big deal...
Replies: 92
Views: 3904

Re: I didn't think the usb c power thing was a big deal...

Matter of physics, the old MicroUSb is not rated for higher currents, USB-C is. More current is needed if you want USD HDs to work ok. If you don't have a USB drive and use uSD then old 2.5 amp supply works fine with a tiny $2 USBmicro to USB-C adapter. No big deal. The big deal is those adapters a...
by bensimmo
Thu Jul 11, 2019 6:54 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 269
Views: 48974

Re: Raspberry Pi 4 temperature

80C which is what mines sits at with a browser open (no case). These should have a warning in schools* it can burn, so CodeClubs, jams etc should be the same. Else that place may have H&S problems. This was from our last talk. *I do need to check on this, I don't know the law just the information w...
by bensimmo
Thu Jul 11, 2019 3:53 pm
Forum: C/C++
Topic: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?
Replies: 171
Views: 3481

Re: I dont get it... Why is everyone from science schools so obsessed with Perl and Python when we got C?

Probably a bit like why do people use Photoshop and filters rather than hand edit the pixels. Python has science, maths, etc modules where others have done the hardwork. And yes at University level, undergrad or PhD, they may not know how to code well. They can pick it up and do their work,.with too...
by bensimmo
Thu Jul 11, 2019 3:42 pm
Forum: Troubleshooting
Topic: RASPBERRY PI MODEL B 700Mhz; 512Mb RAM is very, very slow
Replies: 11
Views: 362

Re: RASPBERRY PI MODEL B 700Mhz; 512Mb RAM is very, very slow

Chromium came when the faster Pi were out and could run it reasonably. The older, less capable, but faster on the Pi1/Zero series browser was removed from the listing. The desktop has gradually left the old Pi behind (so B/A/B+/A+/Zero) Minecraft was designed when the Pi1 was current and hasn't been...
by bensimmo
Thu Jul 11, 2019 12:07 pm
Forum: Beginners
Topic: Swap Pi3 for Pi4
Replies: 2
Views: 130

Re: Swap Pi3 for Pi4

Also ask for help with the usb part, it may be software or just the usb part.
You will need to post what it is though.
by bensimmo
Thu Jul 11, 2019 12:03 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 269
Views: 48974

Re: Raspberry Pi 4 temperature

80C which is what mines sits at with a browser open (no case). These should have a warning in schools* it can burn, so CodeClubs, jams etc should be the same. Else that place may have H&S problems. This was from our last talk. *I do need to check on this, I don't know the law just the information we...
by bensimmo
Thu Jul 11, 2019 8:38 am
Forum: Troubleshooting
Topic: RASPBERRY PI MODEL B 700Mhz; 512Mb RAM is very, very slow
Replies: 11
Views: 362

Re: RASPBERRY PI MODEL B 700Mhz; 512Mb RAM is very, very slow

Probably using the Desktop, it will be slow. You should get 1000MHz out of it and it'll be as quick as the PiZero that is £5 if you can find one. It is old though, a Pi2,.3 or 4 are a lot quicker and snappier at the desktop. It's not the SD or anything else, just the fact it is a slow single core CP...

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