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pesfandiar

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Raspberry Pi Pico as AM Radio Transmitter

pesfandiar.com
119 points·by pesfandiar·4 месяца назад·35 comments

Ask HN: Anyone switched from software to physical world engineering?

6 points·by pesfandiar·10 месяцев назад·11 comments

comments

pesfandiar
·9 дней назад·discuss
There are legitimate reasons to get help from LLMs when writing, including being an ESL. The comment has substance.
pesfandiar
·4 месяца назад·discuss
Hear hear. And like many other aspects of accessibility, it will help a huge number of people who may not have any severe issues. e.g. non-native English speakers using LLM-powered edits.
pesfandiar
·4 месяца назад·discuss
Mea culpa.

Without the proper knowledge or measurement equipment, I observed that the audio would fade out after a 30 cm distance. Combined with running it for mere seconds to test and record a demo, I assumed to be in the clear with the spirit of the regulations. Appreciate the reminder to be responsible with RF.
pesfandiar
·4 месяца назад·discuss
Highly recommend his Pico-based microcontroller course: https://www.youtube.com/playlist?list=PLDqMkB5cbBA4GisLzRSqw...

The PWM-based modulation is interesting, but as an amateur, I couldn't fully understand it or trust that the radio receiver reliably picks up the duty cycle as amplitude.
pesfandiar
·5 месяцев назад·discuss
> We're not the world police.

That has been the bargain since WWII though. Pax Americana meant the US owned and enforced a global order, in return international trade and finance ran on its platform. Most Americans can't fathom how bad the alternative is to not being the world police.
pesfandiar
·5 месяцев назад·discuss
I'm surprised and impressed that this works. I would've guessed phones have enough RF shielding and low-pass filters in the audio path to prevent this.
pesfandiar
·6 месяцев назад·discuss
The financial gains from starting a startup have a wildly varied distribution. The analysis won't be very practical if we assume any meaningful exit at any age. Not sure how a "weak exit" is considered the most common outcome.
pesfandiar
·6 месяцев назад·discuss
https://www.pesfandiar.com/blog/ I recently started writing blog posts again as I'm messing around with microcontrollers
pesfandiar
·6 месяцев назад·discuss
Poe's Law could very well apply here.
pesfandiar
·7 месяцев назад·discuss
The signs of techno-feudalism have always been around in fragments (platform/cloud landlords, rent-seeking, gig work, ...), but the promise of hitting gold, the idea of democratized innovation, and the reliance on mass tech labour fueled the techno-optimism. Now, the heavily power-centralizing nature of AI and the shrinking reliance on tech labour have diminished the optimism.
pesfandiar
·7 месяцев назад·discuss
That might change if geopolitical tensions fragment the global supply chains.
pesfandiar
·8 месяцев назад·discuss
As a parent, I found "The Anxious Generation" by Jonathan Haidt insightful and eye-opening.
pesfandiar
·8 месяцев назад·discuss
Mathematics doesn't need to remain backward compatible.
pesfandiar
·9 месяцев назад·discuss
It's wrong to assume the owners will share the productivity gains with everyone, especially when reliance on labour will be at its lowest, and the power structure of a data/AI economy is more concentrated than anything we've seen before. IMO, the assumption that some form of basic income or social welfare system will be funded voluntarily is as delusional as thinking communism would work.
pesfandiar
·9 месяцев назад·discuss
Do you mean the bubble in the financial markets, or disillusionment of capital assuming they get to lay off half the employees for the same output?
pesfandiar
·10 месяцев назад·discuss
Can I ask what drew you to civil?
pesfandiar
·10 месяцев назад·discuss
For sure. The engineering jobs typically have a lower pay and you'd have to start out as a junior, so higher income won't be a reason for the switch.
pesfandiar
·11 месяцев назад·discuss
It's a rather awkward role as you have to carve out a maker's schedule within a manager's schedule [1]. As others have mentioned, it only makes sense as the person ramps up for full management or decides against that career path.

[1] https://paulgraham.com/makersschedule.html