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by dustnbone
Fri Dec 03, 2021 10:10 pm
Forum: General discussion
Topic: Help with audio
Replies: 20
Views: 640

Re: Help with audio

How do they do it? 6W out for 2W5 in ... amazing. Or marketing lies. Creative use of the term "power" Notice no specification of how the power was measured (RMS, PMPO, etc) just "Maximum Practical Output" It's probably measured at a peak, while capacitors are discharging and hor...
by dustnbone
Fri Dec 03, 2021 10:03 pm
Forum: General discussion
Topic: What external speakers do you use (or recommend) for the Pi 4?
Replies: 4
Views: 261

Re: What external speakers do you use (or recommend) for the Pi 4?

Thing I find with audio gear is that it's important to have some range of budget in mind because the range of price/performance is immense. For my Pi I have an older Fiio E17K USB DAC connected to a pair of powered Yorkville studio monitors that I got used off Craigslist for $300 or so. The DAC was ...
by dustnbone
Fri Dec 03, 2021 2:57 am
Forum: General discussion
Topic: Pi Zero 2 W Maximum USB Current Draw
Replies: 10
Views: 525

Re: Pi Zero 2 W Maximum USB Current Draw

I have a 12v DC-DC converter that steps down to 5V/3A - from your experience do you believe the tracks could handle 3A of current or is that ambitious of me? If it can, do you think better thermal management would be required over the standard Pi heat sink? Just connecting the 3A supply won't make ...
by dustnbone
Wed Dec 01, 2021 7:24 am
Forum: Other
Topic: 64-bit TwisterOS?
Replies: 5
Views: 252

Re: 64-bit TwisterOS?

It looks that way, once RPiOS 64 bit Bullseye is out of beta and they can build on that.
by dustnbone
Wed Dec 01, 2021 7:10 am
Forum: Troubleshooting
Topic: Mounting Fat32 on Micro SD Card
Replies: 2
Views: 110

Re: Mounting Fat32 on Micro SD Card

Try ejecting and reinserting the card/reader after the verify (and error message).

It could just be trying to mount it too soon (before the verify process has released the device)
by dustnbone
Sun Nov 28, 2021 10:48 pm
Forum: Beginners
Topic: Imager is slow, like... hours.
Replies: 16
Views: 489

Re: Imager is slow, like... hours.

I'd try writing it with dd and see if it does the same thing. It sounds like a hardware problem to me though.
by dustnbone
Fri Nov 26, 2021 11:53 pm
Forum: Automation, sensing and robotics
Topic: 12v heater for miniature green house?
Replies: 11
Views: 586

Re: 12v heater for miniature green house?

12V automotive light bulbs. They come in a bazillion different sizes.

Put them underneath your enclosure, with the surface you want to heat painted flat black. Make the other surfaces around the bulbs reflective.

This is how a little girls easy bake oven works.
by dustnbone
Thu Nov 25, 2021 12:35 am
Forum: General discussion
Topic: Permanent Connection to these right-angle pins
Replies: 10
Views: 416

Re: Permanent Connection to these right-angle pins

I would carefully remove the header and connect to the other end using wires soldered through the holes. It is easy to remove the header pins if you cut the plastic between each pin and remove the pins individually with a soldering iron and solder sucker. I second this solution, assuming you really...
by dustnbone
Wed Nov 24, 2021 4:04 am
Forum: Raspberry Pi OS
Topic: Librelec vs Raspberry PI OS optimizations?
Replies: 1
Views: 111

Re: Librelec vs Raspberry PI OS optimizations?

1080p playback on the RPi OS desktop is totally fine outside of a browser.

You can use VLC or any of a number of video players and 1080p is flawless, at least in my experience.

Whatever work needs doing, seems to need doing to the browser(s)
by dustnbone
Wed Nov 24, 2021 2:36 am
Forum: Troubleshooting
Topic: (SOLVED) Rpi 4 large file transfer makes system hang
Replies: 6
Views: 247

Re: Rpi 4 large file transfer makes system hang

Exceeding the Pis 1.2A total USB power limit will not trigger the undervoltage warning or throttle the CPU, it will just disconnect all the devices on the USB bus. SSDs use the most power when they're writing, you could be bumping into that. No power supply can overcome this limitation, it's a hard ...
by dustnbone
Thu Nov 18, 2021 2:09 am
Forum: General discussion
Topic: Expectations of the Pi versions.
Replies: 64
Views: 2372

Re: Expectations of the Pi versions.

I guess what is also an expectation booster is the performance of modern mobile phones (which the Pi is derived from). My six year old phone has a faster browser than the Pi4 but of course the mobile is only suitable for intermittent use clocking its ARMv8 at 1.85GHz with limited heatsinking and us...
by dustnbone
Tue Nov 16, 2021 11:23 pm
Forum: Networking and servers
Topic: USB modem not working with Amazon 3.0 M-F cable
Replies: 5
Views: 189

Re: USB modem not working with Amazon 3.0 M-F cable

It's a procedure known as "troubleshooting"

You eliminate potential sources of the problem until you narrow it down to the actual cause.

In this case you will know if the problem is the Pi or the hub.
by dustnbone
Tue Nov 16, 2021 8:42 am
Forum: Troubleshooting
Topic: HDD not recognised.
Replies: 15
Views: 374

Re: HDD not recognised.

What is the output of lsusb?

You should see the SATA bridge listed there.
by dustnbone
Tue Nov 16, 2021 7:47 am
Forum: Networking and servers
Topic: USB modem not working with Amazon 3.0 M-F cable
Replies: 5
Views: 189

Re: USB modem not working with Amazon 3.0 M-F cable

I've run into things that just wouldn't work through my hub before. Last thing was a Microsoft Webcam. Have you tried it with the same hub but a different host? Like a PC?
by dustnbone
Sun Nov 14, 2021 10:19 pm
Forum: Beginners
Topic: SSH into pi with ethernet cable (no router or internet)
Replies: 13
Views: 361

Re: SSH into pi with ethernet cable (no router or internet)

Ethernet repeaters per se are relatively rare things but an ethernet switch will function as one. However it will require power. Can you provide that - AC mains or sufficiently long lasting battery - in one or more points along the cable run? Another option if mains power is only available at the e...
by dustnbone
Sun Nov 14, 2021 9:11 pm
Forum: Beginners
Topic: SSH into pi with ethernet cable (no router or internet)
Replies: 13
Views: 361

Re: SSH into pi with ethernet cable (no router or internet)

As noted above, 500 feet is beyond spec for standard ethernet PHYs. You're going to want to get a working setup running through a shorter cable first, and then see about switching to the longer cable run. You're just introducing too many potential failure points at once otherwise. Easiest way to ach...
by dustnbone
Tue Nov 09, 2021 12:00 am
Forum: Advanced users
Topic: Slow Internet speed RPI4
Replies: 8
Views: 432

Re: Slow Internet speed RPI4

I have tried to install Rtorrent on Raspbian but I have been unable to do it, even with the Scrip I get error and I can't finish the installation. Any alternative torrent client non gui version? rTorrent works fine, there's some other reason it's not installing for you. Have you tried the script ht...
by dustnbone
Fri Nov 05, 2021 5:24 pm
Forum: Troubleshooting
Topic: my screen doesn't work on raspberry pi zero 2
Replies: 15
Views: 417

Re: my screen doesn't work on raspberry pi zero 2

Try pressing F8 in your VNC viewer, it should pop up a menu allowing you to select Full Screen mode.
by dustnbone
Thu Nov 04, 2021 11:27 pm
Forum: Advanced users
Topic: Slow Internet speed RPI4
Replies: 8
Views: 432

Re: Slow Internet speed RPI4

Is Chromium pegging the CPU usage as it normally seems to? That will affect the web speedtest results, assuming it's JavaScript. It would also explain why the WiFi and Ethernet results are similar, neither one of them is being bottlenecked by the actual network stack. If torrent download performance...
by dustnbone
Thu Nov 04, 2021 9:29 pm
Forum: Networking and servers
Topic: NAS with 3.5 hard drives
Replies: 4
Views: 293

Re: NAS with 3.5 hard drives

There's a few CM4 carriers that are designed for this. This one uses the CM4s PCIe lane to provide native SATA without using USB.

https://www.jeffgeerling.com/blog/2021/ ... e-sata-nas

It's not a Pi4 though, but very close.
by dustnbone
Wed Nov 03, 2021 5:15 pm
Forum: General discussion
Topic: Pi zero 2 w cluster?
Replies: 8
Views: 428

Re: Pi zero 2 w cluster?

I don't think it would be cost effective, you can get many times more compute power from a decade old PC with a commodity GPU.
by dustnbone
Tue Nov 02, 2021 1:06 am
Forum: Networking and servers
Topic: How viable is a pi 4 with a wireless usb dongle as a wireless router?
Replies: 4
Views: 245

Re: How viable is a pi 4 with a wireless usb dongle as a wireless router?

It’s probably better to get a router if you’re looking for a router. And a Pi if you’re looking for a general purpose SBC. Actually for this application I think the best is to pick the software first, and then see which platforms are recommended to run it. I think this is a good suggestion. There a...
by dustnbone
Sat Oct 30, 2021 9:54 pm
Forum: Networking and servers
Topic: How viable is a pi 4 with a wireless usb dongle as a wireless router?
Replies: 4
Views: 245

Re: How viable is a pi 4 with a wireless usb dongle as a wireless router?

An external wifi adapter will work just fine, provided it's compatible with ARM Linux. The vast majority of them will work out of the box, but there are exceptions so before you buy do some google stuff. Perhaps someone here has a recomendation but I haven't depolyed a wifi dongle in a long time so ...
by dustnbone
Fri Oct 22, 2021 7:15 pm
Forum: Other
Topic: Trouble Booting Parrot OS
Replies: 3
Views: 294

Re: Trouble Booting Parrot OS

That ISO specifies AMD64, which is the normal PC architecture used on most Windows PCs, however the Pi hardware is ARM64 (sometimes referred to as AARCH64) and cannot run software built for AMD64.

You need an OS specifically built to run on ARM64.
by dustnbone
Fri Oct 22, 2021 7:11 pm
Forum: Troubleshooting
Topic: High brightness/contrast on a CRT
Replies: 5
Views: 233

Re: High brightness/contrast on a CRT

It seems like something on the analog side of things vs Pi related. The symptoms seem like an aging CRT that might have some troubles with it's driving controls, have you verified this behavior is unique to the Pi and doesn't occur with other video sources? it only happens with the pi, any other de...

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