Over on An Absolute Beginners Guide To Designing PCBs using Easy EDA – Make PCB From A Schematic I learned about How to Share Projects in PCBWay Community. Seems like a good service to me, haven’t used it yet but do intend to check it out.
Category Archives: Learning
New word: Spudger!
lol, I was watching Learn Electronics Repair #2 – Geforce GTX 280 GPU Graphics Card Repair Part 1 and I learned a new term: Spudger. You will have to click-through for the definition. :)
ESP-IDF: Espressif’s official IoT Development Framework
Wanna check out ESP-IDF which is Espressif’s official IoT Development Framework. Have to decide if I will use Linux, Mac, or Windows, and whether I will use VSCode or Eclipse.
This looks like a good place to start: https://github.com/espressif/esp-idf
JST connector
I found a bunch of handy information about JST connectors over on Wikipedia: JST connector. There are a bunch of different JST series, it’s worth knowing about these.
Stolen Focus
I have finished reading Stolen Focus by Johann Hari (affiliate link).
I went into this book much more worried about the state of attention in our communities than I was when I came out. Having read about it I kinda don’t feel that we really do have an urgent problem with so many people on earth being constantly engaged with their smart phones.
I might have trouble now starting a conversation with a family member because they are engrossed in their phone, and I might think this is new or different, but thirty years ago it would have been the same thing if they had their nose in a book or a newspaper.
I think by and large it’s good when we’re paying attention to things and engaging with them. That’s not only how entertainment gets done, that is also how work gets done.
I suspect one of the driving forces behind the surge in ADHD diagnoses (and Hari didn’t say this) is that people are getting the diagnosis deliberately because they want access to prescription amphetamines.
Anyway. I would still recommend reading this book. Hari does a good job of covering all the bases and investigating all the topics, including:
- context switching and its effects
- effects on flow
- physical and mental exhaustion
- sustained reading
- mind wandering
- tracking and manipulation
- stress and its triggers
- diet and pollution
- ADHD
- physical and psychological confinement
Hardware debugging
Read a bunch of stuff about hardware debugging. Learned a thing or two, but I have much further to go!
Books by Kevin Kelly
Here is a list of books from Kevin Kelly, the founding editor of Wired. This is just notes for Future John. I’m planning to read the first two, and maybe the last one; the others are old and hard to find in ebook or audible forms.
- Excellent Advice for Living: Wisdom I Wish I’d Known Earlier
- The Inevitable: Understanding the 12 Technological Forces That Will Shape Our Future
- Out of Control: The New Biology of Machines, Social Systems, and the Economic World
- New Rules for the New Economy: 10 Radical Strategies for a Connected World
- Asia Grace
- What Technology Wants
- Cool Tools: A Catalog of Possibilities
fonts-noto-color-emoji
Today I discovered the fonts-noto-color-emoji Ubuntu package, which I installed to get support for emoji fonts in Konversation, my IRC client.
QEMU/KVM Attaching a Virtual NIC Directly to a Physical Interface
Man, it took me a while to figure out how to do this! Over on Attaching a Virtual NIC Directly to a Physical Interface I figured out I could use this XML in Virtual Machine Manager (virt-manager) for my NIC device:
<interface type='direct'> <source dev='enp9s0' mode='bridge'/> </interface>
That then gets expanded automatically to something like this:
<interface type="direct"> <mac address="52:54:00:ce:5b:09"/> <source dev="enp9s0" mode="bridge"/> <target dev="macvtap4"/> <model type="rtl8139"/> <alias name="net0"/> <address type="pci" domain="0x0000" bus="0x10" slot="0x01" function="0x0"/> </interface>
Update: ah, balls. This doesn’t completely work, because the guest can’t connect to the host, and vice versa, even though both the host and the guest can connect to the internet. This is a problem for another day. Maybe this or this will help?
Four pillars of virtualization
I’m reading Mastering KVM Virtualization and it says the four pillars of virtualization are:
- CPU
- memory
- storage
- network