I went looking for a remote-controlled power switch (the wireless christmas kind, not the modern IoT kind) and didn't find it, but I did find this thing I bought just to figure out why it exists.
It's a timer outlet, but you program it from your phone... but it's not wireless.
probably because iphone dropped the headphone port and they had to get with the 21st century and make it bluetooth
I guess the thing saves settings when turned off, because you have to unplug it to push the reset button.
Specs: up to 10 amps for a resistive load, and up to 5 amps for a tungsten load.
That's putting some serious trust in your SEO, man
although it tries to sell me a bunch of unrelated movies first?
one of my favorite things to do is to look up the ratings on IoT apps... they're never good.
make calls, and access all your files.
and if you deny it, it just dumps you in the settings page to fix permissions, with no message.
We've got a CPU and two smaller chips. Probably one is some kind of communication chip, and the other is a flash chip for storing settings?
L isn't connected... I think that means there's a version of this that can control two outlets at once, not just one.
I do like that they keep all the high-voltage AC stuff separate from the low-voltage DC stuff.
Cheaper versions of this would have just had one PCB.
AND IT'S AN 8051! EVERYONE TAKE A DRINK
because it has a battery, yeah.
because it can tell it's not connected properly, in this emulator I'm using
it sounds like (NO PUN INTENDED) it has a protocol of simple tones that it plays at the device.
android historically has had a AudioManager.isWiredHeadsetOn api which tells you if the 3.5mm jack is connected.
So it may just be detecting there's no headphones plugged in to my emulator.
CT is "current time" as an integer of how many minutes it is into the day, and CD is the day of the week.
(it's using Monday = 001, and counting up from there)
uhhh. I'm not sure I'm awake enough to figure this out, but... it starts by padding up to a multiple of 8 bits.
then it converts that to a binary number, and pads it out (on the left this time) to 8 bits
if it is, it adds a 1?
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it is the most frequently manufactured device in history, and the total number manufactured from 1960-2018 is 13 sextillion.
That's 13,000,000,000,000,000,000,000.
Though this picture is a bit misleading.
Even with devices this small, we couldn't make 13 sextillion of them in 60 years.
So imagine a chip like this. It's the 555 timer, which is one of the most popular integrated circuits ever made.
In 2017, it was estimated a billion are made every year.
And at the heart of it is the die, which looks like this:
(from Ken Shirriff's blog)
https://t.co/mz5PQDjYqF
And that's fundamentally a bunch of CMOS transistors (along with some diodes and resistors), which are a type of MOSFET. How many of them are on a 555?
about 25. Not many, but it's a very simple chip.
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Like company moats, your personal moat should be a competitive advantage that is not only durable—it should also compound over time.
Characteristics of a personal moat below:
I'm increasingly interested in the idea of "personal moats" in the context of careers.
— Erik Torenberg (@eriktorenberg) November 22, 2018
Moats should be:
- Hard to learn and hard to do (but perhaps easier for you)
- Skills that are rare and valuable
- Legible
- Compounding over time
- Unique to your own talents & interests https://t.co/bB3k1YcH5b
2/ Like a company moat, you want to build career capital while you sleep.
As Andrew Chen noted:
People talk about \u201cpassive income\u201d a lot but not about \u201cpassive social capital\u201d or \u201cpassive networking\u201d or \u201cpassive knowledge gaining\u201d but that\u2019s what you can architect if you have a thing and it grows over time without intensive constant effort to sustain it
— Andrew Chen (@andrewchen) November 22, 2018
3/ You don’t want to build a competitive advantage that is fleeting or that will get commoditized
Things that might get commoditized over time (some longer than
Things that look like moats but likely aren\u2019t or may fade:
— Erik Torenberg (@eriktorenberg) November 22, 2018
- Proprietary networks
- Being something other than one of the best at any tournament style-game
- Many "awards"
- Twitter followers or general reach without "respect"
- Anything that depends on information asymmetry https://t.co/abjxesVIh9
4/ Before the arrival of recorded music, what used to be scarce was the actual music itself — required an in-person artist.
After recorded music, the music itself became abundant and what became scarce was curation, distribution, and self space.
5/ Similarly, in careers, what used to be (more) scarce were things like ideas, money, and exclusive relationships.
In the internet economy, what has become scarce are things like specific knowledge, rare & valuable skills, and great reputations.