Over on the Geerling Engineering YouTube channel, my Dad and I just posted a video where we installed the ASUSTOR Lockerstor 4RS - AS6504RS at his radio station, to increase their raw network storage capacity from 4 to 16 TB:

Today I needed to play back an MP3 or WAV file through a USB audio device on a Raspberry Pi, in a Python script. " Should be easy! " I thought!

Well, a couple hours later I decided to write this blog post to document the easiest way to do it, since I had to take quite a journey to get to the point where sound actually plays through the USB audio output.

The problem is most guides, like this simple one from Raspberry Pi's project site , assume

Just wanted to post this here, since I've had to do this from time to time, and always had to read through the docs and try to build my own little example of it...

If you're trying to protect an Nginx server from a ton of traffic (especially from a limited number of IP addresses hitting it with possibly DoS or DDoS-type traffic), and don't have any other protection layer in front, you can use limit_req to rate limit requests at

Last year, due to some extreme luck and help from a viewer, I picked up an AMD RX 6700 XT for MSRP (around $500).

My initial goal was to see if I could get the card working on a Raspberry Pi. Though my initial effort was fruitless , I've since hacked the driver to work through at least a few 'rings' of AMD's doorbell init process.

Anyways, because I had that graphics card laying around, I decided to put

Update : I was able to get everything to work—but I couldn't get the RX 6700 XT's drivers installed in Ubuntu. There are probably a few reasons for that... but it definitely wasn't as straightforward as I had hoped. I'll post an update soon.

Last year, in my work towards bringing up a graphics card on the Raspberry Pi, I was fortunate enough to acquire an AMD Radeon RX 6700 XT at near-

In case you didn't know, the Raspberry Pi turns 10 today!

That's right—the Raspberry Pi model B (pictured above, front left) was launched on February 29th, 2012. And it sold out immediately.

That seems to have become a theme with every Pi model, but for anyone who does have a Pi kicking around in a box somewhere—or if you're lucky enough to find a Pi in stock —check

A few months ago, I wrote up a post covering my backup plan . In it, I talk about the 3-2-1 backup strategy:

• 3 copies of all your important data
• 2 different media
• 1 offsite

In that post, I mentioned I back everything up with two local copies (two separate NAS units), and a third offsite copy on Amazon Glacier Deep Archive.

Since I use Glacier Deep Archive along with rclone to manage the backup copies (in a setup where file deletions are not propagated to the

A couple months ago, Axzez reached out and asked if I'd like to test out the Interceptor —an ATX-style mini motherboard for the Raspberry Pi Compute Module 4, complete with 5 SATA ports.

The board is meant to be used as an NVR (Network Video Recorder): You pop a Raspberry Pi Compute Module 4 on top, you plug in up to 5 SATA hard drives for storage, and then you plug IP cameras into the 3 extra LAN ports (via an RTL83

I often like exploring what's possible on a Raspberry Pi (or other low-end hardware). One area I haven't explored much is GPU performance. I typically run my Pi's headless, and have only dabbled in embedded machine vision with Pi cameras, so most of my experience is on the programming / software side.

But seeing Apple's 120 Hz 'ProMotion', and ever-higher refresh rates in the enthusiast gaming realm ( we may hit 480 Hz soon