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The Old Car Files: TPMS Sensors

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 Things have been relatively quiet in the Wisdumb garage recently, though the old Prius seems to have a lot more scratches and dings than it used to.  Hmm. That's a mystery that is stumping me.  Oh, and there is a newly-licensed driver in the house since my last installment, who primarily drives the Prius.  And since there is a newly licensed driver, this was a good excuse to add another pony to the stable, so there is now a 2025 Nissan Leaf SL to use for around-town driving.  The incentives to buy that car were crazy good, so buying it new was cheaper than most of the used ones we were looking at.  Someday I may do a writeup on that car.  It serves its purpose, but has a lot of compromises.  So, I guess I mean that things were quiet in that nothing broke and needed fixing.  Except for a sailboat and trailer that was given to me. Before I get any further off track, today's discussion is about TPMS sensors and the tire places that use them to ...
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BirdNet-Pi: Techonology, AI, Nature and DIY all in one Project

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 I just got up and running with a new DIY project that absolutely amazes me.  It is called BirdNet-Pi and it is a software package running on a Raspberry Pi that uses AI analysis of audiograms to automatically identifies birds by sound in real time.  It is designed to run 24/7 and collects data on all of the birds it hears around your house.  It can even generate notifications that I can receive on my cell phone so I can come running if it detects a bird I haven't seen in my yard before.  Almost as amazing, it is a free, open-source project! I was clued in to this project by a Facebook ad for a BirdWeather PUC  (shown above).  This is a standalone device that does much of the above- listens and identifies birds that it hears.  It is fully integrated with the BirdWeather website and shares its data to the BirdWeather database.  You can look up real time ID results for any PUCs that are shared on their map.  Pretty cool!  I wanted one...
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Dolphin S200 Pool Cleaning Robot Drive Motor Repair

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 I've spent the past two weeks doing battle with my pool cleaning robot and want to share what I've learned so others can fix their own if they run into the same problem. My robot is a Maytronics Dolphin S200.  The internals are probably very similar or identical to other models, and I think there are even rebranded versions, so the details below likely apply to a fair amount of the population.  These robots are pretty expensive to buy, but they are, in my opinion, the best way to clean my pool.  My pool is surrounded by pine trees and they are always dropping stuff in the water, so I keep my robot in the pool and it runs daily on its timer with little intervention from me and uses much, much less electricity than my previous pressure-side pool cleaner. Rant on Robot Manufacturer Greed There is a lot of markup on these robots.  The S200 I got for $600 in 2017 (and its equivalents) now sell for more than $1000.  The exact same design.  No new technology...
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Dolphin S200 Pool Cleaning Robot Drive Motor Repair

-
Image
 I've spent the past two weeks doing battle with my pool cleaning robot and want to share what I've learned so others can fix their own if they run into the same problem. My robot is a Maytronics Dolphin S200.  The internals are probably very similar or identical to other models, and I think there are even rebranded versions, so the details below likely apply to a fair amount of the population.  These robots are pretty expensive to buy, but they are, in my opinion, the best way to clean my pool.  My pool is surrounded by pine trees and they are always dropping stuff in the water, so I keep my robot in the pool and it runs daily on its timer with little intervention from me and uses much, much less electricity than my previous pressure-side pool cleaner. Rant on Robot Manufacturer Greed There is a lot of markup on these robots.  The S200 I got for $600 in 2017 (and its equivalents) now sell for more than $1000.  The exact same design.  No new technology...
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A Call to End Discrimination

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  You are probably wondering what I, a white dude living in America, know about discrimination.  Sadly, I know more than I wish I did.  You see, I was born with a particular trait that was destined to make my life in our society more difficult.  I have never tried to hide it and I'm not ashamed of it.  I'm proud of it in many respects, and many people around me already know this, but never, until now, have I publicly announced it.  So, here goes:  I am left-handed. Obviously, the previous paragraph was tongue-in-cheek, and I in no way intend to marginalize the struggles of anyone facing discrimination for factors beyond their control.  Rather, it is the opposite.  I like to use humor to ease the tension serious topics.  This blog post is an attempt at empathy and solidarity on my part.  I'll let the reader draw the parallels between my seemingly minor inconveniences with being left-handed and their own experience with discrimination...
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What does a post-growth society look like?

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  A recent article in The Morning newsletter from the New York Times rekindled a smoldering ember of thought that resides in a corner of my mind.  It has never burned hot enough to inspire me to serious study on the subject, but this time it has at least motivated me enough to write about it.  The topic is growth; how our society and economy are dependent on it, why I think that is problematic, and how it can change.  My thoughts on this subject are not well formed at this time and, unusually for Wisdumb, I offer no answers, only more questions. The Times article covered the aging population of Japan and showed the chart below projecting other major economies and the world as a whole being on the brink of a rapidly aging populous. The article primarily focused on the social impacts of this aging population, in particular that Japan is running out of workers.  It posits the only solution is to bring in more immigrants.  This is what bothers me and stokes tha...
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