Go to advanced search

by Gavinmc42
Mon Jul 22, 2019 5:41 am
Forum: Beginners
Topic: I am establishing a craft brewery and using PID temperature controllers
Replies: 4
Views: 87

Re: I am establishing a craft brewery and using PID temperature controllers

I use B+ and Zero's for temperature controllers, down to < 0.5C controlling. They have way too much processing power for that, but Zero's are cheap ;) Depends it you want Ethernet system or WiFi . Plenty of left over CPU grunt to add a web page server for monitoring. Software wise lots of choices, p...
by Gavinmc42
Mon Jul 22, 2019 5:31 am
Forum: Graphics programming
Topic: Documentation for VC6
Replies: 3
Views: 196

Re: Documentation for VC6

No they are not. What on earth gives you that idea? I am aware of the history of the Alphamosiac hardware. External low power GPU acceleration for mobile devices........ Are they like Android? More from the point of view of being a SoC with ARM cpu's with a GPU attached. Or for Pi's, a GPU with cpu...
by Gavinmc42
Sun Jul 21, 2019 10:55 am
Forum: Off topic discussion
Topic: Something I'd like to see.
Replies: 32
Views: 1022

Re: Something I'd like to see.

That's great. If only I could get one in black and without that space wasting number pad section.
Don't care about the colour, but those extra number keys must go.

As soon as FreeCAD is working I am going to design a split Colemak ergo.
These Pi4 are so good they need a serious keyboard.
by Gavinmc42
Sun Jul 21, 2019 2:17 am
Forum: Graphics, sound and multimedia
Topic: Does Chromium/Pi support WebGL 2?
Replies: 6
Views: 1209

Re: Does Chromium/Pi support WebGL 2?

Not only does the Pi4 do WebGL2 it is not bad with glTF as well
http://github.khronos.org/glTF-Sample-Viewer/
by Gavinmc42
Sun Jul 21, 2019 12:43 am
Forum: Graphics programming
Topic: Documentation for VC6
Replies: 3
Views: 196

Re: Documentation for VC6

It would be really helpful to have any kind of documentation for VideoCore 6. It would help ;) Not much info around on the VC6 yet. I am hoping Broadcom just release a Vulkan driver and save us some trouble. Even if we get Vulkan, it requires much more coding than OpenGL to do anything. So another ...
by Gavinmc42
Sat Jul 20, 2019 11:45 pm
Forum: Off topic discussion
Topic: Something I'd like to see.
Replies: 32
Views: 1022

Re: Something I'd like to see.

Hahahahahahahaha. "Next to no R&D". You have no idea how much pain it took to get those right!! Yep and I think within a month some has hacked the keyboard and shoved in a Zero and then a 3A+. I was thinking at the time, lucky they had enough room ;) RPF keyboard+ case with officially designed spac...
by Gavinmc42
Sat Jul 20, 2019 11:29 am
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 752
Views: 64615

Re: Raspberry Pi 4 Thread - general discussion

A1 rated cards are the best, A2's are a waste of money.
by Gavinmc42
Sat Jul 20, 2019 9:06 am
Forum: OpenGLES
Topic: RPi4 Problem drawing GL_POINTS anyone?
Replies: 17
Views: 431

Re: RPi4 Problem drawing GL_POINTS anyone?

I've also narrowed the problem down to something I've caused. I know that feeling, thought I had broken Lazarus, uninstall, reinstall - same problem. Somehow I had included x86 code :oops: I know the buttons for save, compile and run, will try to avoid the other fancy stuff. Anyway, trying to make ...
by Gavinmc42
Sat Jul 20, 2019 4:33 am
Forum: Automation, sensing and robotics
Topic: Hardware required for making an autonomous airplane which is optionally controllable via transmitter.
Replies: 1
Views: 90

Re: Hardware required for making an autonomous airplane which is optionally controllable via transmitter.

Wrong forum for concise answers.
Try DIYdrones.
https://diydrones.com/

There is one Pi guy who did it from scratch
But that is a saga and makes interesting reading if you want to know what can go wrong.

You can get hats with the nav stuff on it.
by Gavinmc42
Sat Jul 20, 2019 1:32 am
Forum: Troubleshooting
Topic: Chromium 'awww snap' errors on Pi 4 1Gb
Replies: 15
Views: 365

Re: Chromium 'awww snap' errors on Pi 4 1Gb

Well I am only using one 1280x1024 screen and the YT's are 480 lines but windowed.
Not exactly pushing it hard
by Gavinmc42
Sat Jul 20, 2019 12:40 am
Forum: Troubleshooting
Topic: Chromium 'awww snap' errors on Pi 4 1Gb
Replies: 15
Views: 365

Re: Chromium 'awww snap' errors on Pi 4 1Gb

Been using the 4B1 for 2 weeks now, no issues with Chromium up to at least 20 tabs. That many tabs with YT video playing and compiling with Laz/FPC, no problem. The more recent Chromium releases now seem to use less memory per tabs than previous versions and Firefox These two seem to tag team, for a...
by Gavinmc42
Sat Jul 20, 2019 12:12 am
Forum: OpenGLES
Topic: RPi4 Problem drawing GL_POINTS anyone?
Replies: 17
Views: 431

Re: RPi4 Problem drawing GL_POINTS anyone?

My code is just a hack of the Lazarus example. My OpenGL coding experience with Laz/fpc is about one day old ;) I might try this in Gentoo64 on a 3B+ as that is an OpenGL based desktop too. Anyway I don't think your issue is a driver problem, just an OpenGL/ES code issue. And there is such wonderful...
by Gavinmc42
Fri Jul 19, 2019 11:57 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 752
Views: 64615

Re: Raspberry Pi 4 Thread - general discussion

James that is cool, and preforms beautiful on the Pi4!
Now I want to see that on a 4K screen.

Yep, sure beats a triangle, a dot and a line.
WebGL is so going on my list of Pi things to learn now.
by Gavinmc42
Fri Jul 19, 2019 10:53 am
Forum: OpenGLES
Topic: RPi4 Problem drawing GL_POINTS anyone?
Replies: 17
Views: 431

Re: RPi4 Problem drawing GL_POINTS anyone?

Paddy, did you set the point size?
If I don't set it I don't see anything.

Free Pascal but it's very similar.

Code: Select all

glPointSize(3.0);
  glBegin(GL_POINTS); 
  glVertex3f(10.0,15.0,0.0);
  glEnd();
GL_POINTS, GL_LINES and GL_TRIANGLES tested and working on a Pi4.
by Gavinmc42
Fri Jul 19, 2019 7:31 am
Forum: Off topic discussion
Topic: Something I'd like to see.
Replies: 32
Views: 1022

Re: Something I'd like to see.

So it is worth RPT (not RPF) producing and licensing hardware aimed at other markets. So we might see RISC-V SoC PCBs one day? er, kidding, a little ;) Assuming you guys have free time from designing CM's, Pi5, Pi6 etc ;) How much of the BCM2711 was RPT's and how much was BCM's effort? 70/30, 50/50...
by Gavinmc42
Fri Jul 19, 2019 5:57 am
Forum: Off topic discussion
Topic: Something I'd like to see.
Replies: 32
Views: 1022

Re: Something I'd like to see.

Yep, CM's is a different market. Hopefully PCIe makes it to CM's. CM's would make a good core for DIY laptops? Could it led to more options than just PiTop things. since WD never made a go of it. Or...it might just be that not enough people knew about them Could not buy any from local suppliers in O...
by Gavinmc42
Fri Jul 19, 2019 3:34 am
Forum: Gaming
Topic: roblox
Replies: 17
Views: 8481

Re: roblox

I assumed Roblox was a Win32 MFC app with ActiveX applets of Internet Explorer embedded with use of a special IE ActiveX plugin to interface to their servers with - at least that's what it looked like witnessing it secondhand a decade ago. Perhaps it was back then but now it runs on Windows, Androi...
by Gavinmc42
Fri Jul 19, 2019 1:51 am
Forum: OpenGLES
Topic: RPi4 Problem drawing GL_POINTS anyone?
Replies: 17
Views: 431

Re: RPi4 Problem drawing GL_POINTS anyone?

Picture is worth a thousand words. Your video clearly shows the issue. Wonder if that screenshot of Brian's was a 3B+ one and not a Pi4? I'm not sure if OpenGLES2 is working on Pi4, if it is, only Brian or yourself knows how? I will give it a go with OpenGL in Laz/Free Pascal this weekend. Still hav...
by Gavinmc42
Fri Jul 19, 2019 1:38 am
Forum: Off topic discussion
Topic: Something I'd like to see.
Replies: 32
Views: 1022

Re: Something I'd like to see.

I'd buy one. I dare say there will be a buyer of anything RPF make. But we need to consider RPF mission which is Education. RPT has mandate to provide low cost computing for RPF's mission. The Education market is not IT self sufficient , they rely on external providers for IT bits. If you think abo...
by Gavinmc42
Thu Jul 18, 2019 11:46 am
Forum: Graphics programming
Topic: A framebuffer test result on a Pi4: compatibility broken
Replies: 13
Views: 535

Re: A framebuffer test result on a Pi4: compatibility broken

Thanks pik33. nice link. Finally some DRM stuff that I nearly understand. int dri_fd = open("/dev/dri/card0",O_RDWR); I see /dev/dri/card0 and card1, that's for the two HDMI outputs? Please note that there is a lot of room for optimization in this code. On systems with SIMD instructions, such x86_64...
by Gavinmc42
Thu Jul 18, 2019 11:33 am
Forum: Other
Topic: 64-bit Gentoo Running on RPi4! (First Boot / Proof of Concept)
Replies: 34
Views: 3640

Re: 64-bit Gentoo Running on RPi4! (First Boot / Proof of Concept)

13+hrs on a 3B+ compiling the full RISC-V Linux tool set in Gentoo64. Just a heatsink and lid off, running about 74C . I did not really expect it to actually finish. it was just a stress test for Gentoo64 that surpassed my expectations. It was enough to convince me that Pi3B+ performance was getting...
by Gavinmc42
Thu Jul 18, 2019 8:03 am
Forum: Gaming
Topic: roblox
Replies: 17
Views: 8481

Re: roblox

I was under the impression it was a browser based game.
Perhaps WebGL and now WASM?
No Linux version?

However it is done, it keeps getting better.
by Gavinmc42
Thu Jul 18, 2019 7:53 am
Forum: Beginners
Topic: i have a tight buget. is the pi 3 worth buying or should i just buy the 4
Replies: 29
Views: 860

Re: i have a tight buget. is the pi 3 worth buying or should i just buy the 4

monitoring and logging slow moving temperatures
B+ is fine for that, even does a plotting webserver, I max out the cpu usage at 2% ;)
Recycle 3B+ - perhaps security camera with motion detect? Streaming camera?
4B = desktop, server, NAS....
by Gavinmc42
Thu Jul 18, 2019 2:30 am
Forum: RISCOS
Topic: Proposal to show speed of RISC OS compared to Linux.
Replies: 59
Views: 1725

Re: Proposal to show speed of RISC OS compared to Linux.

How long before we see a new OS on Pi's
https://fuchsia.dev/

Android is dead, long live Fuchsia?
by Gavinmc42
Thu Jul 18, 2019 1:37 am
Forum: Beginners
Topic: i have a tight buget. is the pi 3 worth buying or should i just buy the 4
Replies: 29
Views: 860

Re: i have a tight buget. is the pi 3 worth buying or should i just buy the 4

The Pi4B, even the 1GB is so much better than the 3B+. How poor is this guy? If he is spamming then he must have computing devic of some sort. Probably fancy $1000 smart phone? But seriously, avoid Pi's at all costs, they breed like tribbles. And they are a big waste of time, all that learning and c...

Go to advanced search