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by Botspot
Fri Sep 20, 2019 1:00 am
Forum: General discussion
Topic: Low voltage warning even though gpio being powered with 5.07V?
Replies: 38
Views: 1163

Re: Low voltage warning even though gpio being powered with 5.07V?

Preferably 18AWG. Had some spare 18 AWG wire handy. So I soldered it to a breakaway female header, which sticks in the GPIO. Webcam-1568920235-min.png Lightning symbol disappeared! A large capacitor might clean it up a bit once you've fixed the wiring. Thought about it, but the power supply already...
by Botspot
Tue Sep 17, 2019 1:43 pm
Forum: General discussion
Topic: Low voltage warning even though gpio being powered with 5.07V?
Replies: 38
Views: 1163

Re: Low voltage warning even though gpio being powered with 5.07V?

Good idea measuring directly from the GPIO pins... 4.65V!
I understand voltage drop, but never would have thought such a short length of wire could have made a difference this bad.

Well I know better than to crank up the power supply. (fried a 3B doing that)

What wire thickness is necessary?
by Botspot
Tue Sep 17, 2019 3:17 am
Forum: General discussion
Topic: Low voltage warning even though gpio being powered with 5.07V?
Replies: 38
Views: 1163

Low voltage warning even though gpio being powered with 5.07V?

outlet --> 5v 20A power supply --> Pi 4's gpio pin

Pi boots up, but lightning symbol is showing
Tested the power supply's output and it's giving a steady 5v. Adjusted it to 5.07V, and still, lightning bolt icon.

Here's my setup:
Webcam-1568689443-min.png
Webcam-1568689443-min.png (158.37 KiB) Viewed 872 times
by Botspot
Mon Sep 16, 2019 10:52 pm
Forum: Troubleshooting
Topic: Chromium occasionally 'shifts' UI if GL is on - Pi 3 running Buster
Replies: 0
Views: 32

Chromium occasionally 'shifts' UI if GL is on - Pi 3 running Buster

If I enable OpenGL, occasionally Chromium will look like this until I move the mouse pointer near it.
2019-09-16-120102_1280x1024_scrot.png
2019-09-16-120102_1280x1024_scrot.png (25.26 KiB) Viewed 32 times
  • Never seen it happen when OpenGL is off.
  • No Chrome flags have been modified
by Botspot
Mon Sep 16, 2019 10:30 pm
Forum: Beginners
Topic: [SOLVED] Is this fiberglass sticking out of my Pi's PCB?
Replies: 4
Views: 163

Re: Is this fiberglass sticking out of my Pi's PCB?

Razor blade worked fine for me.
by Botspot
Mon Sep 16, 2019 9:23 pm
Forum: Beginners
Topic: [SOLVED] Is this fiberglass sticking out of my Pi's PCB?
Replies: 4
Views: 163

[SOLVED] Is this fiberglass sticking out of my Pi's PCB?

Just opened my 4B4 and noticed some thin, 'hairy' stuff poking out from the topside of the circuit board.
DSC_1573.JPG
DSC_1573.JPG (219.49 KiB) Viewed 163 times
What is it, should I bother removing it, and should I worry about getting itchy skin (fiberglass reaction) when handling it?
by Botspot
Mon Sep 16, 2019 1:36 pm
Forum: Advanced users
Topic: Image File Utilities
Replies: 22
Views: 1669

Re: Image File Utilities

Milliways wrote:
Mon Sep 16, 2019 12:54 pm
Fix the Forum so that posts can be deleted.
Never done this personally, but I think you can flag your own post and tell the moderator you want it deleted.
by Botspot
Mon Sep 16, 2019 12:30 pm
Forum: Advanced users
Topic: Image File Utilities
Replies: 22
Views: 1669

Re: Image File Utilities

Milliways wrote:
Mon Sep 16, 2019 7:19 am
deleted
Remember we want information...No information no help. Could you clarify "deleted"?
by Botspot
Mon Sep 16, 2019 1:17 am
Forum: Advanced users
Topic: Installing raspbian stretch on raspberry pi 4?
Replies: 3
Views: 382

Re: Installing raspbian stretch on raspberry pi 4?

I have just released a script to run a Stretch virtual machine within Raspbian Buster. Although it is very much still a work in progress and is not guaranteed to work in your case, it is definitely something to try!
Image
by Botspot
Sun Sep 15, 2019 9:43 pm
Forum: Scratch
Topic: Scratch 3.0 with Raspberry Pi 4B
Replies: 1
Views: 1371

Re: Scratch 3.0 with Raspberry Pi 4B

See here for more details. Short answer: turn on the GL driver and you should be good to go. Here's how: Open a terminal. Type sudo raspi-config and press Enter. https://i.ibb.co/FmnDPSZ/2019-09-15-162603-661x450-scrot-min.png Press down arrow key until Advanced Options is selected, then press Enter...
by Botspot
Sun Sep 15, 2019 9:04 pm
Forum: Scratch
Topic: ScratchGPIO now supports Scratch3.0
Replies: 1
Views: 3899

Re: ScratchGPIO now supports Scratch3.0

Will this work on Scratch 3.0 offline? Or only scratch.mit.edu?
by Botspot
Sun Sep 15, 2019 7:38 pm
Forum: Advanced users
Topic: Image File Utilities
Replies: 22
Views: 1669

Re: Image File Utilities

Thanks so much RonR for these powerful scripts!!

I am using image-mount in my vdesktop script, it allows me to mount a Stretch image on a Buster OS, then boot that as a VM in a VNC-style window!
Edit: shorten link
by Botspot
Sun Sep 15, 2019 7:30 pm
Forum: Advanced users
Topic: Vdesktop: Ultimate Raspbian Virtual Machine Script. Feedback wanted!!
Replies: 2
Views: 173

Re: Powerful Tool to run a Stretch Container in Buster. Testers wanted, comments wanted.

pi@Pi3B:~ $ sudo /home/pi/vdesktop/vdesktop /home/pi/chromiumos_image_r70.img OK, looks like you specified an .img file. /home/pi/vdesktop/vdesktop: line 134: * 512: syntax error: operand expected (error token is "* 512") Unable to create loop device That may be as expected, not being Raspbian imag...
by Botspot
Sun Sep 15, 2019 1:02 pm
Forum: Advanced users
Topic: Vdesktop: Ultimate Raspbian Virtual Machine Script. Feedback wanted!!
Replies: 2
Views: 173

Vdesktop: Ultimate Raspbian Virtual Machine Script. Feedback wanted!!

I have designed a script to run a graphical Raspbian virtual machine, within Raspbian. GitHub page here . Report bugs here . https://i.ibb.co/vLFTLJg/scrot.png This script is excellent in these situations: Migrating to a clean install of Raspbian and want to copy files from the old one. Running two ...
by Botspot
Sat Sep 14, 2019 12:19 pm
Forum: Raspbian
Topic: sonic-pi 3.10 for buster available for testing.
Replies: 7
Views: 2114

Re: sonic-pi 3.10 for buster available for testing.

plugwash wrote:
Sat Sep 14, 2019 8:23 am
Seems like jack is failing to open the audio device. Are you running any other audio related stuff?
Not that I'm aware of. How could I find out?
by Botspot
Sat Sep 14, 2019 1:33 am
Forum: Raspbian
Topic: sonic-pi 3.10 for buster available for testing.
Replies: 7
Views: 2114

Re: sonic-pi 3.10 for buster available for testing.

Worked last month, but today it wouldn't open. Strange. Opened an issue on github, but error output is here also: Sonic Pi Boot Error Report ================== System Information ---------------- * Sonic Pi version: 3.1.0 * OS: Raspbian GNU/Linux 10 (buster) GUI Log ------- **`/home/pi/.sonic-pi/log...
by Botspot
Mon Sep 09, 2019 9:23 pm
Forum: General discussion
Topic: How to make money with a Raspberry Pi?
Replies: 40
Views: 1689

Re: How to make money with a Raspberry Pi?

Imperf3kt wrote:
Mon Sep 09, 2019 8:11 pm
Most likely a matter of perspective - somebody else is paying the bill.
Yeah you're on the right track... ;)
by Botspot
Mon Sep 09, 2019 4:56 pm
Forum: General discussion
Topic: How to make money with a Raspberry Pi?
Replies: 40
Views: 1689

Re: How to make money with a Raspberry Pi?

You guys haven't been very helpful... Though somewhat funny.

Is mining DigiHash profitable, assuming electricity is free?
by Botspot
Mon Sep 09, 2019 12:40 pm
Forum: General discussion
Topic: How to make money with a Raspberry Pi?
Replies: 40
Views: 1689

Re: How to make money with a Raspberry Pi?

Allow me to clarify:
  • Selling them/giving them is not an option!!
  • I don't want to do bitcoin, mainly because everybody says it's unprofitable.
  • But that leaves all other forms of cryptocurrency available as valid options.
Has anyone had good success mining cryptocurrency with a Raspberry Pi?
by Botspot
Sat Sep 07, 2019 6:48 pm
Forum: General discussion
Topic: How to make money with a Raspberry Pi?
Replies: 40
Views: 1689

How to make money with a Raspberry Pi?

I have two 3Bs that are not being used, and I would like to use them to make money.

Looking for a way to 'sell' their processing power over the internet, such as bitcoin, though I would prefer an alternative to bitcoin.
Does anyone have experience doing this? Please share.
by Botspot
Fri Aug 30, 2019 2:50 pm
Forum: Advanced users
Topic: Image File Utilities
Replies: 22
Views: 1669

Re: Image File Utilities

These are brilliant! I have used portions of image-mount in my bash script to let it mount and boot a Raspbian disk image using systemd-nspawn. Bug report: image-mount does not accept disk images located in a directory that contains the space character. (And yes, I tried using quotation marks.) pi@r...
by Botspot
Sun Aug 18, 2019 9:45 pm
Forum: Scratch
Topic: Good news!!! Scratch 3.0 works with my Raspbian Pi 4
Replies: 11
Views: 2832

Re: Good news!!! Scratch 3.0 works with my Raspbian Pi 4

Type chrome://gpu in the address bar and see what it says. On Buster / Chromium 74.0.3729.157 with a Pi 3B+ mine shows: * WebGL: Hardware accelerated * WebGL2: Hardware accelerated Raspberry Pi 3B+ with Stretch Chromium 60.0.3112.89 * WebGL: Hardware accelerated but at reduced performance * WebGL2:...
by Botspot
Wed Aug 07, 2019 10:32 pm
Forum: Raspbian
Topic: Buster bug report thread
Replies: 219
Views: 26709

Re: Buster bug report thread

Also posted here . I have used a Pi 3B for 2 years now as a full desktop computer. I have found a few annoying bugs within the OS, bugs which I feel are really simple to fix. First bug is when I enable single click option in pcmanfm. singleclick.png Since pcmanfm handles the desktop, the desktop als...
by Botspot
Wed Aug 07, 2019 3:12 pm
Forum: Troubleshooting
Topic: No PC icons in Network anymore with Rpi4-Buster
Replies: 2
Views: 146

Re: No PC icons in Network anymore with Rpi4-Buster

All your icons are missing?
Try a fresh install of Buster.
by Botspot
Wed Aug 07, 2019 2:44 pm
Forum: Other
Topic: Ubuntu arm64 64 bit architecture ::systemd-nspawn: command not found
Replies: 1
Views: 2151

Re: Ubuntu arm64 64 bit architecture ::systemd-nspawn: command not found

I am getting an error and I am using Pi 3b+ and Ubuntu arm64 64 bit architecture and it getting error of ::systemd-nspawn: command not found so please help me soon tq friend and this arm64 in Ubuntu is too slow also and tell the solution tq bro Try installing systemd-nspawn with this command: sudo ...

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