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by alexellis
Sat Oct 30, 2021 8:49 am
Forum: General discussion
Topic: First Impressions with the Raspberry Pi Zero 2 W
Replies: 9
Views: 1832

Re: First Impressions with the Raspberry Pi Zero 2 W

Thanks for the replies and for taking a look at my post. I measured like for like, which should give you a good idea of *the change* even if it's not a direct 5V measurement. It seems like the Pi Zero W is more hungry for power, which is not surprising given that it has 4 cores instead of 1 and is s...
by alexellis
Sat Oct 30, 2021 8:45 am
Forum: General discussion
Topic: The Raspberry Pi Zero 2 W Thread
Replies: 380
Views: 20249

Re: The Raspberry Pi Zero 2 W Thread

Just to say that I've done a bit of a hands-on review with the RPi Zero 2 W too, and I contrasted it to the original for all of us who are wondering if we should upgrade, and if we do, what the older ones are good for.

https://blog.alexellis.io/raspberry-pi-zero-2/
by alexellis
Thu Oct 28, 2021 12:52 pm
Forum: General discussion
Topic: First Impressions with the Raspberry Pi Zero 2 W
Replies: 9
Views: 1832

First Impressions with the Raspberry Pi Zero 2 W

I wrote up my First Impressions with the Raspberry Pi Zero 2 W Including some ideas for the older RPi Zero, where it still shines and how the new one performs with real world applications like Go, Node.js and K3s. https://blog.alexellis.io/content/images/2021/10/rpizeros.jpg You can read it here: ht...
by alexellis
Mon May 10, 2021 10:48 am
Forum: Automation, sensing and robotics
Topic: Grow your own with Raspberry Pi - an update on #growlab!
Replies: 0
Views: 220

Grow your own with Raspberry Pi - an update on #growlab!

Grow your own with Raspberry Pi - an update on #growlab! #growlab is what happens when you combine nature and technology with a global community. Everyone is welcome to join #growlab, whether you're participating in the timelapse contest, or just wanting to connect with others and grow your own. You...
by alexellis
Tue Apr 13, 2021 9:50 am
Forum: Networking and servers
Topic: I created a netbooting workshop for Raspberry Pi
Replies: 1
Views: 313

I created a netbooting workshop for Raspberry Pi

Hi everyone, You may know me from my blog post on the Raspberry Pi website: Five years of Raspberry Pi clusters https://www.raspberrypi.org/blog/five-years-of-raspberry-pi-clusters/ or from my KubeCon talk: The Past, Present, and Future of Kubernetes on Raspberry Pi https://www.youtube.com/watch?v=j...
by alexellis
Mon Apr 12, 2021 7:59 am
Forum: Automation, sensing and robotics
Topic: Join Our Grow Lab Challenge!
Replies: 1
Views: 753

Join Our Grow Lab Challenge!

Hi everyone, my name's Alex and I love Raspberry Pi, IoT, sensors and growing vegetables. In 2017 I put together a project showing what I'd built and enjoyed seeing the community participate: https://blog.alexellis.io/iot-growbox/ This year, I wanted to take the project to the next level and also ge...
by alexellis
Mon Apr 05, 2021 9:00 pm
Forum: Networking and servers
Topic: State of netbooting Raspberry Pi in 2021
Replies: 5
Views: 407

State of netbooting Raspberry Pi in 2021

I wanted to share my latest blog post for those of you who (like me) enjoy building clusters with the Raspberry Pi "State of netbooting Raspberry Pi in 2021" TLDR; When I tried netbooting 24 RPi3s in 2017, it failed miserably. Find out what changed when I built my private cloud with the ne...
by alexellis
Mon Apr 05, 2021 8:57 pm
Forum: Raspberry Pi OS
Topic: Is there a newer version of Raspberry Pi OS 64-bit?
Replies: 2
Views: 9759

Is there a newer version of Raspberry Pi OS 64-bit?

Hi all, Is there a newer version of Raspberry Pi OS 64-bit Lite than August 2020? That was the newest version I could find on the download server, but the armhf version is much more recent. https://downloads.raspberrypi.org/raspios_arm64/ I know that there's a 64-bit Ubuntu OS that works well headle...
by alexellis
Sun Mar 14, 2021 10:44 am
Forum: Troubleshooting
Topic: Operation not possible due to RF-kill
Replies: 10
Views: 24651

Re: Operation not possible due to RF-kill

I just ran into the same issue with an RPi 3 I wrote out a wpa_supplicant.conf (including COUNTRY=gb) and then placed it in /boot/ Upon boot-up, I had a keyboard and monitor plugged in. I saw the configuration in place, but a soft block also pi@raspberrypi:~ $ sudo rfkill list 0: phy0: Wireless LAN ...
by alexellis
Thu Mar 04, 2021 11:40 am
Forum: Networking and servers
Topic: faasd - Lightweight functions for Raspberry Pi
Replies: 1
Views: 271

faasd - Lightweight functions for Raspberry Pi

Hi everyone, I'm a long-time Raspberry Pi user and have written hundreds of tutorials and maintain a bunch of OSS projects too for setting up Raspberry Pi projects with IoT and with containers. You may have also heard of https://openfaas.com - an independent and open source serverless framework for ...
by alexellis
Thu Mar 16, 2017 1:45 pm
Forum: Beginners
Topic: Tutorial: Build a Timelapse Rig with your Raspberry Pi
Replies: 2
Views: 797

Re: Tutorial: Build a Timelapse Rig with your Raspberry Pi

That's a nice tutorial - hope you don't mind if I put a link to it on my blog :) Mark Please do, that would be great! Since the post I've written a new Python app that takes HDR time lapses by combining 4 pictures. https://www.youtube.com/watch?v=XftecHPC1xE https://www.youtube.com/edit?video_id=Xf...
by alexellis
Thu Mar 09, 2017 4:47 pm
Forum: Beginners
Topic: Tutorial: Build a Timelapse Rig with your Raspberry Pi
Replies: 2
Views: 797

Tutorial: Build a Timelapse Rig with your Raspberry Pi

Create your own Raspberry Pi Timelapse rig https://i.redditmedia.com/xVfTGn7x1t8ZU3e7-3HSxBi3sYvrJs5DILENWJY2zZ0.jpg?w=568&s=05dcc87920ee270df41f32b716ebe147 Follow step-by-step instructions on how to create a portable timelapse rig with your Raspberry Pi and (optionally Docker). Capture sunris...
by alexellis
Sun Nov 20, 2016 10:32 am
Forum: Troubleshooting
Topic: Help needed - RAID1 root partition in Jessie
Replies: 0
Views: 557

Help needed - RAID1 root partition in Jessie

Hi, I've been following instructions from http://blog.drewwithers.com/2013/11/raspberry-pi-usb-raid1-root-partition.html - I have a RAID array of two identical disks which work at runtime but I cannot boot from them. I'm unable to boot my Pi 2 after running through the instructions and by trying out...
by alexellis
Fri Apr 29, 2016 3:38 pm
Forum: General discussion
Topic: Raspberry PI Zero back in stock @ PiHut (thepihut.com)
Replies: 20
Views: 6759

Raspberry PI Zero back in stock @ PiHut (thepihut.com)

Just saw this on Twitter... so if you are after a PI Zero get them now. https://thepihut.com/products/raspberry-pi-zero?variant=14062715972 What can you build with a bunch of PI Zeros? A Docker Swarm: http://blog.alexellis.io/content/images/2016/04/pi_swarm.jpeg http://blog.alexellis.io/dockerswarm-...
by alexellis
Fri Apr 15, 2016 7:53 am
Forum: Advanced users
Topic: Tutorial: Build a PI Cluster with Docker
Replies: 4
Views: 4408

Re: Tutorial: Build a PI Cluster with Docker

Absolutely outstanding! We're slowly acquiring Pis to provision our classroom. We have a 20 lab curriculum designed with lab number 19 or 20 being a cluster and lab number 11 or 12 doing Docker. This is the ultimate and we will base our big lab leveraging much of your tutorial. I can't tell you how...
by alexellis
Thu Apr 14, 2016 11:53 am
Forum: Advanced users
Topic: Tutorial: Build a PI Cluster with Docker
Replies: 4
Views: 4408

Re: Tutorial: Build a PI Cluster with Docker

Update:

The PI Zero quick-start edition of the tutorial is now here:

Build a PI Zero Swarm with Docker
by alexellis
Wed Apr 13, 2016 9:56 pm
Forum: Python
Topic: Python/Flask app not working correctly when run with Bash
Replies: 10
Views: 4229

Re: Python/Flask app not working correctly when run with Bas

I use Python/Flask over at https://github.com/alexellis/pyPlaylist to enable audio/radio streaming on the PI. I've had good success using @reboot in Cron. Does my code work on your PI if you add it to @reboot? Btw.. if you upload your code to Github I can try it out on my PI and let you know whether...
by alexellis
Wed Apr 13, 2016 7:47 pm
Forum: Advanced users
Topic: Tutorial: Build a PI Cluster with Docker
Replies: 4
Views: 4408

Tutorial: Build a PI Cluster with Docker

I wanted to share a project I've been working on since October last year, it's also been featured as a tutorial in Linux Developer & User in the RasPI section. And on @Docker over on Twitter https://twitter.com/docker/status/715629498365059073 Build a PI Cluster with Docker Swarm http://blog.al...
by alexellis
Thu Apr 07, 2016 9:14 pm
Forum: General discussion
Topic: NEW HDD FOR RPI's
Replies: 39
Views: 9253

Re: NEW HDD FOR RPI's

Tonight I've tried four different 5v PSUs each rated at 5v/2A with both a PI2 and PI3 (determined to get this product working). Then I got a Seagate 1TB USB drive and plugged it straight into the PI2 (with max current = 1) and it not only booted, but mounted quickly and let me read data off it... A...
by alexellis
Thu Apr 07, 2016 8:15 pm
Forum: General discussion
Topic: NEW HDD FOR RPI's
Replies: 39
Views: 9253

Re: NEW HDD FOR RPI's

Tonight I've tried four different 5v PSUs each rated at 5v/2A with both a PI2 and PI3 (determined to get this product working). Then I got a Seagate 1TB USB drive and plugged it straight into the PI2 (with max current = 1) and it not only booted, but mounted quickly and let me read data off it. Perh...
by alexellis
Thu Apr 07, 2016 8:00 am
Forum: General discussion
Topic: NEW HDD FOR RPI's
Replies: 39
Views: 9253

Re: NEW HDD FOR RPI's

This: In many/most cases, the 314 drive can be plugged directly into the Pi's USB port without a powered hub. We don't state this as a feature because feasibility depends on many factors- peripheral load and activity, length and quality of USB cables, etc. I bought a PiDrive.. at full price, then w...
by alexellis
Tue Jan 26, 2016 12:47 pm
Forum: Troubleshooting
Topic: Reliable USB ethernet for Raspberry PI
Replies: 5
Views: 1878

Reliable USB ethernet for Raspberry PI

I bought two USB - ethernet adapters from eBay, which turned out to crash the PI's kernel as soon as any data over a few KB was transferred through it. I found an article somewhere on Google collaborating the fact that they are not strictly compatible with the PI naming the chipset. I've searched th...
by alexellis
Thu Sep 10, 2015 11:09 pm
Forum: Arch
Topic: Guide: Provision the Raspberry PI with Arch Linux
Replies: 2
Views: 2523

Guide: Provision the Raspberry PI with Arch Linux

I have put a small guide/blog post together on setting up Arch Linux Arm on a Raspberry PI - primarily as a headless installation. I don't find it any harder than using ISO images now that I've got used to the process. If this is of any use to you please let me know. Likewise if you have any other f...
by alexellis
Thu Jul 16, 2015 5:52 pm
Forum: Python
Topic: Python GPIO control slow script...
Replies: 13
Views: 5164

Re: Python GPIO control slow script...

sixaxis is not a standard python library, it was pinched from 'CamelSoftware': http://www.camelsoftware.com/firetail/blog/python/using-a-ps3-sixaxis-controller-with-python-on-linux/ The guy wrote a threaded python class which reads the /dev/input/js0 device over and over again. The alternative would...
by alexellis
Thu Jul 16, 2015 2:13 pm
Forum: Automation, sensing and robotics
Topic: Sixaxis PS3 controller woes
Replies: 0
Views: 1113

Sixaxis PS3 controller woes

I struggled to know which sub-forum to post this in. I want to use a PS3/sixaxis controller to control a robot under Arch Linux on a Raspberry PI 2. I've started out by following tutorials and quickly found that the controller I was sold as genuine (I paid extra for this) was a replica. I would run ...

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