macropin
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1 year ago
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on: Theory crafting a system for 1000 simultaneous micro SD card ingests
Or how about 999 additional computers? They could be really tiny ones, running some kind of operating system designed for putting inside small single purpose machines. You could also add a coloured light on the front of each one and a button that says "copy to NAS".
macropin
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1 year ago
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on: Balcony solar is taking off
I'd be interested to find out what sort of anti-islanding techniques they employ. Most inverters are relatively slow to detect grid failure, and if you pull the plug out quickly you might get a shock.
macropin
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1 year ago
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on: Balcony solar is taking off
AS/NZ standards prohibit these sorts of systems. Even most models of Victron inverters are not "approved" for grid use without an approved external anti-islanding device, which also vary depending on which energy distributer your are connecting to. Apparently Victron got fed up with dealing with CEC and paying the annual fees to be approved.
macropin
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1 year ago
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on: ESPHome
I've heard that pressure sensors are the most reliable.
macropin
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1 year ago
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on: ESPHome
How do you power them? I've used ESPHome previously to scrape my solar analytics for consumption in Home Assistant using $3 Wittycloud ESP8266's. But as yet I haven't found an elegant solution for powering them other than using a USB adapter. It would be nice to find an elegant battery solution for outside sensors.
macropin
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2 years ago
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on: TOTP Codes in the Terminal
YubiKeys support cli access with the benefit of being hardware backed, and optionally requiring a physical touch:
$ ykman oath accounts code <slot>
Touch your YubiKey...
macropin
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2 years ago
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on: Discovering hard disk physical geometry through microbenchmarking (2019)
I wonder if this approach still works with firmware tweaked drives. Anyone remember the "google" spec 320G Seagate drives from circa 2006? The ones with the pink epoxy"? IIRC they benchmarked with flat throughput across the whole platter. Rumours were they were custom spec drive that somehow made it in to the retail channel.
macropin
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2 years ago
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on: The little SSH that sometimes couldn't (2012)
Reminds me of a similar story from a colleague regarding email an email that couldn't be sent with a specific subject. After much troubleshooting by L1/L2 techs it turned out to be a bit pattern error / broken ASIC in a core router/switch.
I've personally twice encountered similar issues, once with FTPS and another with HTTPS, both manifesting as strange cryptographic failures, but ultimately caused by broken network device somewhere in the path.
macropin
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2 years ago
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on: Making a PDF that's larger than Germany
macropin
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2 years ago
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on: The long life of Apache httpd 2.4
The only thing keeping Apache alive today is the need to support .htaccess files for PHP apps like WordPress and the like. For every other use case there are better alternatives.
macropin
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2 years ago
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on: Autonomous Robot Lawn Mower
Seems really interesting but there haven't been any updates for two years and I don't think the design is open.
macropin
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2 years ago
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on: How To Get Started In Soldering
Fumes are best avoided. They contain mercury.
True story: I was testing the quality of the water from a property I was thinking of buying and got a hit for high levels of mercury. I called the test manufacturer and asked for a few more tests to confirm the levels and the guy asks "done any soldering in the area within the last TWO WEEKS", I had been soldering the taillight / trailer connections on my van about two or three weeks prior and that was enough to leave detectable levels of mercury lingering in the undercover outdoor area where I conducted the tests.
macropin
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3 years ago
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on: How to build a Linux-based wireless router out of spare parts (1998)
I built something similar around the same time to share BigPond Cable. IIRC it was a 486 based machine with dual NICS, single HD floppy drive and FreeSCO^ Linux based router on floppy. It was very reliable, and lived under the stairs of my parents house until they moved.
^ https://freesco.sourceforge.net/
macropin
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3 years ago
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on: Why do new cars look like wet putty?
> This is how cars all use to look!
Not exactly the same. Older vehicles used solid pigments without a clear coat.
macropin
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3 years ago
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on: GPS vs. Glonass vs. Galileo
GPS used in survey equipment is accurate to 2cm with ~5 second acquisition time.
macropin
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3 years ago
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on: Duplicati: Free backup software to store encrypted backups online
Not to be confused with duplicity, or duplicacy backup programs which have similar features.
macropin
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3 years ago
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on: Startup Builds Houses by Pumping Concrete into Inflatable Forms
Pneuma-Plastic Casting?... PPC.
It's got a nice ring to it. Don't you think?
macropin
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3 years ago
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on: Upgrade to Linux
macropin
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3 years ago
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on: Who Makes Ridgid Tools?
Tool brands don't mean much anymore. Cheap and expensive tools are made on the same production line. I bought a set of GearWrench ratcheting spanners a few years ago and got a 16mm "Husky" spanner in the middle of the set.
macropin
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3 years ago
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on: Mygov is a ‘huge disappointment,’ key architect despairs
To truely make it "MyGov" they need to open up the code base and start accepting PR's.
