Thinking about thinking…
Justin Sung on Metacognition
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Category Archives: Learning
PCI Express over Fiber
This project is awesome! It’s what it says on the tin. The video also demos the use of ngscopeclient.
The Epistemology of Microphysics
My IRC friend dcz referred me to this: The Epistemology of Microphysics. One fun fact from it is that the electron was discovered by J. J. Thomson (1856-1940), a fellow Jay Jay!
Awesome falsehood
A curated list of falsehoods: awesome-falsehood.
Spintronics: Build Mechanical Circuits
My IRC friend dcz referred me to this: Spintronics: Build Mechanical Circuits. Definitely need to get me 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…
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.