My IRC friend dcz referred me to this: Spintronics: Build Mechanical Circuits. Definitely need to get me one of these!
Spintronics: Build Mechanical Circuits
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Cardputer-Adv: Compact Programmable Platform for Embedded Prototyping & IoT Development
I was reading the latest version of Make: Magazine, Make: Magazine, Volume 96, and I discovered this cool hardware based on the ESP32-S3: M5Stack Cardputer Adv Version. They are out of stock at the moment but I will have to check back later because I think I would love to have one of these!
John Teel explains microcontrollers to avoid
The microcontrollers to avoid and what to consider instead:
- ESP8266 → ESP32-C3
- PIC16 → ARM Cortex-M0+, STM32C0, TI’s MSPM0
- Ultra-Cheap No-Name MCUs → something with better doco and support, such as STM32C0 or TI’s MSPM0
- STM8 → STM32C0
- MSP430 → TI’s MSPM0
- ATmega328P → newer MCUs in AVR family
- Overpriced High-End MCUs → consider microprocessor instead
Help with Thevenin equivalent circuit
I was doing some prep work for the upcoming LAoE video and learning about Thevenin equivalent circuits, something I need to understand better than I do, particularly how to calculate Vth and Rth. I built the circuit on my bench, but then got readings I didn’t understand, so I asked about it over on the EEVblog Forum: Help with Thevenin equivalent circuit. In the end it turned out that my initial readings were wrong for some unknown reason, but when I repeated them they came out right the second time…
Interlude #19: Making Power Cables for FNIRSI SG-002 Current Source | In The Lab With Jay Jay
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Silly Job Title: Note Taker. I am the Note Taker!
In this video we make some power cables for use with my FNIRSI SG-002 Signal Generator. I use these as a current source in my experiments. The power cables I required are DC barrel female sockets into banana jacks.
I am getting ready to build some circuits to test Thevenin equivalent circuits which I am learning more about over here: Thevenin & Norton practice problems.
We use the METCAL PS-900 Soldering Station for soldering.
We use the AiXun H314 Hot Air Gun to shrink the heat shrink.
We use the EEVblog BM2257 Digital Multimeter to test the cables.
We use the Multicomp Pro MP701033 Resistor Decade Box to explain how I plan to use these new cables.
We use the Plato Model 170 Wire Cutter to cut the cables.
We use the Kaisi S-160 45x30cm Repair Mat as my workspace.
Thanks very much for watching! And please remember to hit like and subscribe! :)
p.s. today I added Thevenin, METCAL, AiXun, and Multicomp to my spell check.
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Yum Cha 5 in 1 Air Quality Meter |
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Thevenin & Norton practice problems by Gary Tuttle
This is a note for Future John. The practice problems and associated documentation are here: Thevenin & Norton practice problems.
String case
We have camelCase, PascalCase, snake_case, Pascal_Snake_Case, SCREAMING_SNAKE_CASE, and ALLUPPERCASE.
Prefer zswap over zram
This in my feed today: Debunking zswap and zram myths.
tl;dr: If in doubt, prefer to use zswap. Only use zram if you have a highly specific reason to.
Homework
This is a part of the homework feature of my blog, which is an ongoing conversation with my mate S.F.
Hey mate. Lovely to see you again, as always. Can’t wait to do it all again soon!
A film to check out is Materialists, it’s a bit of fun. Another interesting film is Conclave. And also The Green Knight.
The video where I explain my maths homework is here: Channel News #10: Happy New Year! | Learning Electronics In The Lab With Jay Jay.
This song by the Sex Pistols from back in 1978 is Friggin’ in the Riggin’. Everyone should know this one!
You mentioned Blue Velvet by David Lynch.
I thought it was Cars that was by The Wachowskis but the film I was thinking of was Speed Racer.
You explained lens speed to me.
You mentioned about the film Pirates of Silicon Valley.
I created a bunch of applets to help me practice my arithmetic:
I mentioned about Chase Hughes. He has a bunch of interesting videos. I particularly enjoyed this one: How to WIN the Game of Earth. If you have more time this one is also good: How They Broke us All.
I mentioned I am reading the “classics”. In this case classic open source software, the details are here: Classics.
I mentioned about Ryan Bush who is the person behind Designing the Mind.
The word superordinate means both “of higher rank, status, or value” and “of or being the relation of a broader category to a narrower category that it encompasses, such as metal in relation to iron.”
I mentioned this comic about David Hume: David Hume on Creativity. The idea is that all ideas are combinations and relations of antecedent ideas and there isn’t any genuine “creativity”. Of course that would imply some type of axiomatic ideas or else you could never break into the system…