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by timrowledge
Wed Nov 24, 2021 6:51 pm
Forum: Beginners
Topic: Pi-Top (RPi laptop) alternatives?
Replies: 7
Views: 211

Re: Pi-Top (RPi laptop) alternatives?

I think https://chipsee.com/product/aio-cm4-156/ might be even more interesting. 16” screen, for example.
Better yet for my uses, the board on its own would fit some nice case ideas...
by timrowledge
Wed Nov 24, 2021 3:56 am
Forum: Advanced users
Topic: 64 bit OS with Servo Motor Use
Replies: 1
Views: 78

Re: 64 bit OS with Servo Motor Use

Pigpio is my favoured solution for gpio acces. Works just fine on the 64bit beta OS release.
by timrowledge
Wed Nov 24, 2021 3:51 am
Forum: Advanced users
Topic: M.2 DRIVE with Pi4b
Replies: 45
Views: 1349

Re: M.2 DRIVE with Pi4b

You seem to be skipping over the rather important point that the Pi 4 (and indeed the 3 & 3+) *are* 64 bit hardware. It’s just that the current supported version of the default OS is a 32 bit release. Try the (entirely usable and in my experience very reliable) 64 bit release if that is really i...
by timrowledge
Thu Nov 18, 2021 4:40 am
Forum: General discussion
Topic: Expectations of the Pi versions.
Replies: 64
Views: 2281

Re: Expectations of the Pi versions.

An official PSU, a decent case and HDMI adapter cable will bring the cost of a Pi to about £70. EBuyer were selling Celeron-based entry-level PC's around the £120-£150 mark. Local PC specialists, refurbished and second-hand, are even cheaper. What I have cost £50 including Windows 10 Home, 4GB, 1TB...
by timrowledge
Wed Nov 17, 2021 4:33 am
Forum: General discussion
Topic: Expectations of the Pi versions.
Replies: 64
Views: 2281

Re: Expectations of the Pi versions.

The fact that a 4GB Pi4 (especially when overclocked to 2.1GHz or so) is at all usable as a desktop computer is quite remarkable. I’d say that the fact that we have reached a level of software incompetence where one can make the above statement is even more remarkable. Seriously, I have old copies ...
by timrowledge
Wed Nov 17, 2021 4:27 am
Forum: General discussion
Topic: Expectations of the Pi versions.
Replies: 64
Views: 2281

Re: Expectations of the Pi versions.

I am sure a 4B 4GB, Pi 400 or CM4+CM4IO could be but then one is approaching the price of an entry level PC which is just as capable, more so if one considers the ability to run Windows, plus Linux via WSL, huge hard disk, SSD, DVD-R/W et al. Err, where would one find an ‘entry level pc’ for $50? N...
by timrowledge
Sat Oct 16, 2021 7:34 pm
Forum: Off topic discussion
Topic: How to share my VGA monitor with my Windows PC and my Raspberry PI 4
Replies: 6
Views: 652

Re: How to share my VGA monitor with my Windows PC and my Raspberry PI 4

Why mess with any weird hardware? Connect vga monitor to ancient PC. Install VNC on PC. Set Pi to use vnc. See Pi display on vga monitor alongside whatever PC displays. No cost, no buttons to press.
by timrowledge
Sat Oct 16, 2021 7:31 pm
Forum: Raspberry Pi OS
Topic: Optimized OS for running python code
Replies: 8
Views: 498

Re: Optimized OS for running python code

I would use java since I'm a bit more acquainted with it but the CPU architecture does not support the java structure. Wait, what? What on earth gave you that idea? For all that I despise java, it most certainly runs on ARM cpus.it has done so for a long time. In fact ARM even has/had a special sui...
by timrowledge
Wed Sep 29, 2021 12:24 am
Forum: Off topic discussion
Topic: cable chaos
Replies: 21
Views: 2145

Re: cable chaos

Yeah, but the *mess* when they decided to retract with a cup there...
by timrowledge
Wed Sep 29, 2021 12:21 am
Forum: General discussion
Topic: 64-bit Raspberry Pi OS for Raspberry Pi 4B?
Replies: 11
Views: 941

Re: 64-bit Raspberry Pi OS for Raspberry Pi 4B?

I've been using the 64bit beta via VNC for ... well, ages. Must a year or more? No problems.
by timrowledge
Fri Sep 24, 2021 4:43 am
Forum: Other programming languages
Topic: I got Squeak to work!
Replies: 1
Views: 409

Re: I got Squeak to work!

Well I wish i’d noticed somebody was having problems with running Squeak.. Basically, the virtual machine and support libraries are included because that is what runs Scratch - the original version that is. The Scratch image file (/use/share/scratch/NuScratch*******.image where the * is some date or...
by timrowledge
Fri Sep 24, 2021 4:09 am
Forum: Beginners
Topic: what commands do I need to write to allow my Geekworm X825 board to connect to my SSD?
Replies: 2
Views: 336

Re: what commands do I need to write to allow my Geekworm X825 board to connect to my SSD?

The smart thing in almost any case involving SSDs is to read viewtopic.php?f=29&t=196778 and use OonR’s little script
by timrowledge
Sun Sep 05, 2021 5:58 am
Forum: Beginners
Topic: Is there a minimalist text editor like PyRoom for the Pi?
Replies: 14
Views: 939

Re: Is there a minimalist text editor like PyRoom for the Pi?

LTolledo wrote:
Sun Sep 05, 2021 2:18 am
what could be more minimalistic than nano and/or vi?
Cat & echo?
Of course, real hackers use tiny magnets on a stick to alter the magnetic domains on the disk. Blindfolded...
by timrowledge
Wed Aug 25, 2021 6:59 pm
Forum: Python
Topic: While loop stops after a while? (RPI4 8GB 64bit OS desktop)
Replies: 12
Views: 1040

Re: While loop stops after a while? (RPI4 8GB 64bit OS desktop)

At least last time I looked, the dtoverlay was an on/off thing, whereas the utility I mentioned is for pwm capable fans,. Obviously if the OP has a non-pwm fan then you are quite right. The really nice thing about pwm fans is that you can run them slowly (so, quietly) when the temp is just starting ...
by timrowledge
Wed Aug 25, 2021 4:42 pm
Forum: Python
Topic: While loop stops after a while? (RPI4 8GB 64bit OS desktop)
Replies: 12
Views: 1040

Re: While loop stops after a while? (RPI4 8GB 64bit OS desktop)

If you want to control a fan based on the Pi core temperature, use this -
https://gist.github.com/alwynallan/1c13 ... 2e89e0c536
It’s simple, it’s configurable, it works.
by timrowledge
Sun Jul 18, 2021 10:29 pm
Forum: Off topic discussion
Topic: 'Say hi to Microsoft's own Linux: CBL-Mariner'
Replies: 8
Views: 1439

Re: 'Say hi to Microsoft's own Linux: CBL-Mariner'

Heater wrote:
Sun Jul 18, 2021 2:49 pm
CBL-Mariner, coming to a Pi near you soon!
by timrowledge
Wed May 19, 2021 7:15 pm
Forum: General discussion
Topic: Introducing the "The Wind Tunnel" Cluster Case
Replies: 10
Views: 879

Re: Introducing the "The Wind Tunnel" Cluster Case

I'm using a noctua pwm fan driven by https://gist.github.com/alwynallan/1c13 ... 2e89e0c536
Does the job nicely, just needs the one GPIO pin.
by timrowledge
Sat May 15, 2021 3:16 am
Forum: Raspberry Pi OS
Topic: What Apps do you regularly use?
Replies: 2
Views: 310

Re: What Apps do you regularly use?

Smalltalk. That’s it. Well, vncserver so I can use Smalltalk remotely.
by timrowledge
Fri Apr 16, 2021 11:06 pm
Forum: Advanced users
Topic: Writing an OS from scratch
Replies: 62
Views: 4004

Re: Writing an OS from scratch

If you’re actually writing an OS from scratch you are likely to be at least a year from actually caring even peripherally about peripherals. What is this OS going to do? How? How do you intend to handle memory?Loading & starting programs? Dealing with errors? How will you produce code to run? By...
by timrowledge
Fri Apr 16, 2021 4:21 am
Forum: General discussion
Topic: Is it safe to plug in two motors at once?
Replies: 4
Views: 290

Re: Is it safe to plug in two motors at once?

Much safer to spend a few $ on a servo driver board. Plenty available- try adafruit or pimoroni or buyapi etc. Look for a PCA9685 based one.
by timrowledge
Thu Apr 01, 2021 3:55 am
Forum: Advanced users
Topic: Could a AMS1117-3.3 dropout regulator be used to run a 5V Noctua fan permanently at 3.3V?
Replies: 4
Views: 433

Re: Could a AMS1117-3.3 dropout regulator be used to run a 5V Noctua fan permanently at 3.3V?

If it’s the Noctua model I have (Noctua NF-A4x10 5V PWM, Premium Quiet Fan with USB Power Adaptor Cable, 4-Pin, 5V Version ) then there are 4 wires. One of them is a pwm input that can control it. See https://gist.github.com/alwynallan/1c13096c4cd675f38405702e89e0c536 for a bit of code that will do ...
by timrowledge
Sun Mar 28, 2021 9:33 pm
Forum: Off topic discussion
Topic: Chair recommendation
Replies: 31
Views: 7760

Re: Chair recommendation

I’ve used a balans chair for nigh-on 40 years. I bought it when I was at IBM Research in Winchester and kept it through moves to California and British Columbia. I had to replace the foam twice but the actual upholstery fabric is the original. It’s earned it’s keep, even though it cost something lik...
by timrowledge
Sat Mar 13, 2021 9:17 pm
Forum: C/C++
Topic: No way to create GUI desktop application using C++ to run natively on raspberry pi os?
Replies: 6
Views: 858

Re: No way to create GUI desktop application using C++ to run natively on raspberry pi os?

I’m puzzled where you think the large list of applications that run on the Pi come rom?
There are gazillions* there by default and for trivial download. Sure, a few of them are Python based. Some are even Smalltalk based. But most are C/C++ based.
by timrowledge
Thu Mar 11, 2021 1:01 am
Forum: Off topic discussion
Topic: Product obsolescence statements
Replies: 19
Views: 1408

Re: Product obsolescence statements

I'd be rather more concerned about things like Macs. How long before the last of the x86 Macs are no longer supported? Really? I have several 10-ish y.o. Macs all working perfectly well and getting regular updates and mostly able to run the very latest OS. A 15 y.o. IMac PPC is still in daily use. ...
by timrowledge
Sun Feb 21, 2021 10:04 pm
Forum: Scratch
Topic: NuScratch update coming + 64bit version
Replies: 13
Views: 3964

Re: NuScratch update coming + 64bit version

If anyone would like to test out the updates to NuScratch there are a couple of packages you can try downloading The new VM, shell script and image in a tgz that includes the relevant paths. https://mega.nz/file/7MMR3a5Z#YGd3-UETfAe_7V5_jybDfwn6MQzA_ekL61G54tYX-Zk The 64bit VM, shell scripts, resour...

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