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The Raspberry Pi makes a great USB webcam for $100

There are many Raspberry Pi projects where I spend a few hours (or dozens of hours) building something with a Pi, and realize at the end that not only could I have purchased an off-the-shelf product to do the same thing for half the component cost, but it would work better too.

But this is not one of those projects:

Pi Webcam on Tripod - Pi Zero W and HQ Camera

The Raspberry Pi and its HQ camera make a surprisingly potent webcam, and if you want to cover the basics, and rival the image quality of all but the highest-end dedicated webcams, you can do it for under $100.

Still frame grab from recording on Dell XPS 13 using Raspberry Pi Webcam

Above is a single frame from a recording I did with the HQ Camera on my Raspberry Pi Zero W connected as a standard USB webcam using the Camera app on Windows 10 on my Dell laptop.

Kubernetes 101 livestream series starts Nov 18th!

On November 18th, at 11 a.m., the first episode of my upcoming Kubernetes 101 livestream series will start on my YouTube channel.

Kubernetes 101 Series Artwork

The first episode will be available here on YouTube: Kubernetes 101 - Episode 1 - Hello, Kubernetes!.

You can find more details about the series on my Kubernetes 101 site, and there is also an open-source Kubernetes 101 GitHub repository which will contain all the code examples for the series.

In the spring, I presented a similar livestream series, Ansible 101, covering all the basics of Ansible and setting people up for success in infrastructure automation.

The Raspberry Pi 400 can be overclocked to 2.2 GHz

After the Raspberry Pi 400 was launched earlier this morning, there was a lot of discussion over the thermals and performance of the upgraded 1.8 GHz System on a Chip inside:

Pi 4 model B and Pi 400 BCM2711 SoC Broadcom chip number difference

I wanted to spend a little time in this post testing overclocking, performance, power consumption, and thermals in depth.

Video version

There is also a video that goes along with this post, if you're more visually-inclined:

The Raspberry Pi 400 - Teardown and Review

Today Raspberry Pi Trading announced the Raspberry Pi 400, the latest in the series of small education-focused computers that started with the original Raspberry Pi in 2012.

For years, people have come up with creative ways to hack a Pi into keyboards, like the Original Pi in an old Mitsumi keyboard, or the Pi 3 A+ in an official Pi Keyboard.

But the Pi 400 delivers something many have desired: an official Pi 4 board built right into a Pi Keyboard, in a space- and performance-efficient way.

Raspberry Pi 400 Back Ports - Hero

5 Gbps Ethernet on the Raspberry Pi Compute Module 4

tl;dr: I successfully got the Intel I340-T4 4x Gigabit NIC working on the Raspberry Pi Compute Module 4, and combining all the interfaces (including the internal Pi interface), I could get up to 3.06 Gbps maximum sustained throughput.

Update: I was able to boost things a bit to get 4.15 Gbps! Check out my video here: 4+ Gbps Ethernet on the Raspberry Pi Compute Module 4.

After my failure to light up a monitor with my first attempt at getting a GPU working with the Pi, I figured I'd try something a little more down-to-earth this time.

And to that end, I present to you this four-interface gigabit network card from Intel, the venerable I340-T4:

Intel I340-T4 NIC for PCI Express x4

The Raspberry Pi Compute Module 4 Review

Raspberry Pi Compute Module 4

Introduction

Six years ago, the Raspberry Pi Foundation introduced the Compute Module: a teensy-tiny version of the popular Raspberry Pi model B board.

Between then and now, there have been multiple revisions to the Compute Module, like the 3+ I used in my Raspberry Pi Cluster YouTube series, but they've all had the same basic form factor and a very limited feature set.

But today, that all changes with the fourth generation of the compute module, the Compute Module 4! Here's a size comparison with the previous-generation Compute Module 3+, some other common Pi models, and an SD and microSD card (remember when the original Pi used a full-size SD card?):

Raspberry Pi USB Boot - UASP, TRIM, and performance

In the past few weeks, I reviewed USB drive performance on the Raspberry Pi 4, and the importance of UASP support for USB drive performance.

Both posts generated great discussion, and there were three things I wanted to cover in this follow-up, namely:

  1. Which drives support UASP
  2. Real-world performance benchmarks
  3. TRIM support

For reference, here are all the products I'm testing in this post (product links are to their Amazon product page, starting from top middle, clockwise):

USB Performance testing - SATA SSD, NVMe, and Flash drives

Using a Nikon D750 as a webcam or for live streaming

You can use a Nikon D750 as a webcam or for live streaming, assuming you have a mini HDMI to HDMI cable and an HDMI interface for your computer.

While it's forte is stills photography, the D750 isn't bad at video; it can output up to 1080p at 60 frames per second, and has full-time autofocus, but the live view autofocus isn't that great, so I recommend manual focus if you don't have to move around much.

Why would you use a D750? Well, for the same reason you'd use most any other DSLR or mirrorless camera for video instead of a cheaper webcam or built-in camera on your laptop: the video quality is amazing!

Raspberry Pi High Quality Camera - YouTube Video Series

Today I posted the first episode of a new series on the Raspberry Pi High Quality Camera.

Raspberry Pi HQ Camera with Tamron 8mm C-mount lens

I plan on releasing a number of videos in the series covering how to use the HQ camera in various settings, like for astrophotography, nature photography and video, as a webcam or for streaming, for time-lapse photography, and for general photography.

I'll be updating this post with all the videos as I publish them:

Raspberry Pi Cluster Episode 6 - Turing Pi Review

A few months ago, in the 'before times', I noticed this post on Hacker News mentioning the Turing Pi, a 'Plug & Play Raspberry Pi Cluster' that sits on your desk.

It caught my attention because I've been running my own old-fashioned 'Raspberry Pi Dramble' cluster since 2015.

Raspberry Pi Dramble Cluster with Sticker - 2019 PoE Edition

So today, I'm wrapping up my Raspberry Pi Cluster series with my thoughts about the Turing Pi that I used to build a 7-node Kubernetes cluster.

Video version of this post

This blog post has a companion video embedded below: