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by BeauSlim
Wed Dec 11, 2019 4:50 am
Forum: General discussion
Topic: Raspberry Pi... PDA?
Replies: 9
Views: 263

Re: Raspberry Pi... PDA?

I am sure you could build a PDA using a Pi Zero W, a TFT touch screen, and a battery charger board.

But, yeah, you'll be happier with a recycled Android phone with an alternative OS on it. If you hate Android, have a look at https://postmarketos.org/
by BeauSlim
Wed Dec 11, 2019 3:22 am
Forum: General discussion
Topic: raspberry pi in a 5.25 drive bay?
Replies: 2
Views: 128

Re: raspberry pi in a 5.25 drive bay?

There is at least one design on Thingiverse.
by BeauSlim
Tue Dec 03, 2019 10:24 pm
Forum: Advanced users
Topic: What storage available for the PI in 2020?
Replies: 3
Views: 445

Re: What storage available for the PI in 2020?

Diablo2_Fan wrote:Any cheap SSD and an adapter.
It's not quite that simple. There are some SSD-USB adapters/enclosures that work better with Raspbian, so you'll want to search these forums for recommendations. You'll want working UAS at a minimum, and also TRIM and SMART support if at all possible.
by BeauSlim
Fri Nov 29, 2019 8:22 pm
Forum: Advanced users
Topic: How an I improve sshd latency?
Replies: 1
Views: 140

Re: How an I improve sshd latency?

Your latency sounds like a wifi issue to me. Eliminate WiFi as much as possible and test. Plug your Pi4 into your WiFi AP via Ethernet. Does your chromebook have an Ethernet port? You *could* use a USB to TTL serial adapter with your chromebook, but I think that you'll find that clumsy compared to s...
by BeauSlim
Thu Nov 28, 2019 9:30 pm
Forum: Advanced users
Topic: Does 1750Mhz need overvoltage and a fan?
Replies: 8
Views: 396

Re: Does 1750Mhz need overvoltage and a fan?

You want quiet and you want to preserve the warranty, and these are both at odds with overclocking. If you *do* need that little performance bump, or if you just want to overclock for fun, I'd just make sure that you have good air flow over the sink. If testing shows that your Pi is averaging more t...
by BeauSlim
Tue Nov 26, 2019 2:47 am
Forum: Graphics, sound and multimedia
Topic: [SOLVED] Questions regarding TFT project (Previously Raspbian GUI with ili9341?)
Replies: 9
Views: 330

Re: Questions regarding TFT project (Previously Raspbian GUI with ili9341?)

Good job! First, what does the | symbol mean when used in the terminal? I couldn’t find anything at all when searching online (as though google was just ignoring the symbol altogether) Yes, I'd imagine that would be difficult to google for. In UNIX/Linux terminology it's usually called a "pipe". It ...
by BeauSlim
Sat Nov 23, 2019 11:50 pm
Forum: Troubleshooting
Topic: hostapd rtl8822bu refuses to go into wifi AC mode RPI4
Replies: 3
Views: 139

Re: hostapd rtl8822bu refuses to go into wifi AC mode RPI4

The 8822bu driver doesn't seem to support full "AC" in AP mode, but it does seem to do "N" just fine. I also had trouble getting better than "G" speeds until I added ht_capab=[HT40+] Here is my working /etc/hostapd/hostapd.conf for an Asus AC-53 Nano Some things (like wmm_enabled=1) may be unnecessa...
by BeauSlim
Sat Nov 23, 2019 5:33 am
Forum: Graphics, sound and multimedia
Topic: [SOLVED] Questions regarding TFT project (Previously Raspbian GUI with ili9341?)
Replies: 9
Views: 330

Re: Raspbian GUI with ili9341?

The solution I settled on was this one, which works well with my unbranded 9341 touch display, and is tuned for gaming emulation.
by BeauSlim
Tue Nov 19, 2019 6:55 pm
Forum: Advanced users
Topic: Fan Power
Replies: 9
Views: 366

Re: Fan Power

I 3d-printed a plastic bracket that is held underneath the Pi4's GPIO pins with screws. It basically holds a couple solid wires tight to the bottom of a 5V pin and a ground pin while ensuring that the rest of the pins are insulated. The fan's header leads go onto the free ends of the wires. Kind of ...
by BeauSlim
Mon Nov 18, 2019 2:12 am
Forum: Graphics, sound and multimedia
Topic: Issue using Python3/pygame to output to /dev/fb1 targetting a 2.8" TFT screen
Replies: 10
Views: 1710

Re: Issue using Python3/pygame to output to /dev/fb1 targetting a 2.8" TFT screen

Hmm, yep, I'm using the same approach. There are lots of tutorials out there that simply don't work any more because libraries have been abandoned or don't support raw framebuffers any more. And, even if they do framebuffers, they often don't work with 1bpp displays like e-ink and OLEDs. So I decide...
by BeauSlim
Mon Nov 18, 2019 1:18 am
Forum: Advanced users
Topic: USB Mass Storage emulation
Replies: 2
Views: 212

Re: USB Mass Storage emulation

You need to use gadget-mode aka OTG mass-storage.

Some models of Pi support this, including the Pi Zero (W), the Pi 3 A+ and the Pi 4 B.

There's a good starter guide on https://magpi.raspberrypi.org/articles/ ... lash-drive
by BeauSlim
Thu Nov 14, 2019 9:21 pm
Forum: Networking and servers
Topic: Pi Zero server on 24/7 settings
Replies: 4
Views: 318

Re: Pi Zero server on 24/7 settings

There are additional steps you can take to increase ssh security (fail2ban, port knocking). I'm not sure that a soft-reset every day will make much of a difference to reliability. Certain configurations can lead to a lockup during the reboot. If this is really important, you want to find an external...
by BeauSlim
Thu Nov 14, 2019 8:49 pm
Forum: Beginners
Topic: setting up a pi within a restricted network
Replies: 2
Views: 143

Re: setting up a pi within a restricted network

You definitely need to talk to the people who "own" the network. Doing anything that might be viewed as bypassing their restrictions could get you into (very) serious trouble.

If they're good, they'll have a guest VLAN already set up for this kind of situation.
by BeauSlim
Thu Nov 14, 2019 8:35 pm
Forum: General discussion
Topic: Proper shutdown
Replies: 27
Views: 734

Re: Proper shutdown

Personally I think yanking the power on a whim should be normal practice. That is how we turned things off back in the day, TVs, Radios, ... everything. "back in the day" you didn't have flash memory... I agree with Heater. Assume that power will fail. If you don't have a UPS, make your OS power-cu...
by BeauSlim
Thu Nov 14, 2019 7:31 pm
Forum: Beginners
Topic: OS or Hardware issues?
Replies: 14
Views: 619

Re: OS or Hardware issues?

Laptop battery icon? It sounds like you are getting the low power warning. Make sure that your power supply is at least 3A (3000mA).
by BeauSlim
Tue Nov 05, 2019 1:42 am
Forum: General discussion
Topic: pi4 as a thin client (citrix receiver)
Replies: 20
Views: 3578

Re: pi4 as a thin client (citrix receiver)

Nomachine also has extensive support for the Pi, and you don't need to download questionable custom images.
by BeauSlim
Tue Nov 05, 2019 12:29 am
Forum: General discussion
Topic: Connecting a (small) speaker to a rpi zw
Replies: 4
Views: 761

Re: Connecting a (small) speaker to a rpi zw

On the off chance that you just need to play some simple tones, you can connect a piezo buzzer directly.
by BeauSlim
Tue Nov 05, 2019 12:08 am
Forum: Troubleshooting
Topic: Raspbian Buster made my Micro-SD card read-only
Replies: 3
Views: 476

Re: Raspbian Buster made my Micro-SD card read-only

In my experience, a flash card unexpectedly showing up read-only almost always means a failed card. If there is anything important on the card, copy it right away, if possible.

Try reformatting with the SD Association utility from https://www.sdcard.org/downloads/formatter/index.html
by BeauSlim
Mon Nov 04, 2019 11:58 pm
Forum: General discussion
Topic: Which SSD to buy for raspberry pi?
Replies: 63
Views: 7492

Re: Which SSD to buy for raspberry pi?

This might be a silly question, but if I only plan on running a personal website (casual traffic) nginx server + Wireguard VPN on my Pi, will I notice any difference MicroSD vs. SSD? A "casual" web server and a vpn won't really benefit much from higher storage speed. SD cards are rather famous for ...
by BeauSlim
Mon Nov 04, 2019 6:06 am
Forum: General discussion
Topic: rpi4 connected to multiple hdd/sdd via rack
Replies: 13
Views: 1296

Re: rpi4 connected to multiple hdd/sdd via rack

I have that Probox. You'll need to replace the fan, it runs so hot you'll need to remove the front, and USB performance is meh. It's pretty fast over the SATA port, though, if your SATA card supports port multiplication. Not bad for the price. A multi-disk (i.e. multi-SATA) storage device with one U...
by BeauSlim
Sun Nov 03, 2019 11:04 pm
Forum: Networking and servers
Topic: Raspberry pi4 disturbs wifi of the pizero w
Replies: 5
Views: 757

Re: Raspberry pi4 disturbs wifi of the pizero w

I tried putting my Rii keyboard dongle on a usb2 extension but it doesn't seem to have helped. I'm using both usb3 ports pretty heavily. I wonder if the various metal cases that are available help with this. I guess I'll have to experiment with shielding. Maybe Pimoroni will make a Tin Foil Hat!
by BeauSlim
Fri Nov 01, 2019 8:56 pm
Forum: Networking and servers
Topic: Raspberry pi4 disturbs wifi of the pizero w
Replies: 5
Views: 757

Re: Raspberry pi4 disturbs wifi of the pizero w

I wonder if this might be related to the issues people are having with 2.4 GHz usb keyboard adapters.

Are you using USB3 accessories on the Pi4?
by BeauSlim
Sun Oct 13, 2019 5:09 pm
Forum: General discussion
Topic: Problem: RPi Zero and keyboard
Replies: 14
Views: 979

Re: Problem: RPi Zero and keyboard

It might be some weird incompatibility. I have a couple Rii keyboards (i28 and k12+), both with little wireless adapters. Both worked fine under Stretch. Only the k12 works under Buster. I haven't had time to debug.
by BeauSlim
Sun Oct 13, 2019 4:54 pm
Forum: General discussion
Topic: can you do a raid with pis?
Replies: 7
Views: 850

Re: can you do a raid with pis?

The simplest RAID solution would probably be to use a hardware-RAID USB disk enclosure like the "RAID" products from Orico and Mediasonic et al. I don't own one so I haven't tried one with the Pi. Multi-JBOD USB enclosures do work with software-raid via mdadm or btrfs or zfs but software RAID over U...
by BeauSlim
Sun Sep 22, 2019 4:03 am
Forum: Raspbian
Topic: Anyone tried ZFS on Pi 4 or planning to do so?
Replies: 11
Views: 3918

Re: Anyone tried ZFS on Pi 4 or planning to do so?

cyclic, I'd like to hear more details about your setup. Are you running Raspbian? 32 or 64-bit? What USB enclosures are you using for your SSDs? I found setting up ZFS to be relatively easy on the 64-bit Ubuntu Server images for Pi4 from https://github.com/TheRemote/Ubuntu-Server-raspi4-unofficial/r...

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