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Casey Liss

๐Ÿ‘ค Speaker
6707 total appearances

Appearances Over Time

Podcast Appearances

Accidental Tech Podcast
624: Do Less Math in Computers

And in a conversation on Slack with Kiel Olson, he said to me, well, you can just cut it. Wait, wait, I'm sorry, what? Yeah, you can just cut an LED strip. If it's the right kind of strip, you can just cut it. What? So it turns out that there is a style of LED strip and the most popular one is the WS2812B. I'll put a link to the data sheet in the show notes.

Accidental Tech Podcast
624: Do Less Math in Computers

I couldn't find a better link for like just the thing. You can do an Amazon search or what have you if you want to see it. But suffice to say, these are addressable LEDs. So imagine a strip of, say, 100 LEDs, and you can actually target any specific LED.

Accidental Tech Podcast
624: Do Less Math in Computers

I couldn't find a better link for like just the thing. You can do an Amazon search or what have you if you want to see it. But suffice to say, these are addressable LEDs. So imagine a strip of, say, 100 LEDs, and you can actually target any specific LED.

Accidental Tech Podcast
624: Do Less Math in Computers

And the way it works, and I'm going to butcher the specifics, but the general gist of the way it works is the first LED has a data connection and a power connection to whatever's powering it. And it then daisy chains those connections to all the LEDs behind it. So it will look at the data, say, is this about me? Okay, then I'm going to turn myself on or off or no, pass it along to the next one.

Accidental Tech Podcast
624: Do Less Math in Computers

And the way it works, and I'm going to butcher the specifics, but the general gist of the way it works is the first LED has a data connection and a power connection to whatever's powering it. And it then daisy chains those connections to all the LEDs behind it. So it will look at the data, say, is this about me? Okay, then I'm going to turn myself on or off or no, pass it along to the next one.

Accidental Tech Podcast
624: Do Less Math in Computers

And if you cut

Accidental Tech Podcast
624: Do Less Math in Computers

And if you cut

Accidental Tech Podcast
624: Do Less Math in Computers

them at the particular places where they they allow you to physically cut them and they're usually labeled i guess you can just cut three leds off of a strip of 100 i had no freaking clue this was a thing this is blowing my mind now i feel like i want to just play with led strips because i can't i have no purpose really for them uh but i just want to get some play with them just because i think that's incredible combine this with marco's uh holiday lights you can uh

Accidental Tech Podcast
624: Do Less Math in Computers

them at the particular places where they they allow you to physically cut them and they're usually labeled i guess you can just cut three leds off of a strip of 100 i had no freaking clue this was a thing this is blowing my mind now i feel like i want to just play with led strips because i can't i have no purpose really for them uh but i just want to get some play with them just because i think that's incredible combine this with marco's uh holiday lights you can uh

Accidental Tech Podcast
624: Do Less Math in Computers

What the ribbon candy? No, no, no. It was something dots. I know what you're thinking of. It was a row of like four or five.

Accidental Tech Podcast
624: Do Less Math in Computers

What the ribbon candy? No, no, no. It was something dots. I know what you're thinking of. It was a row of like four or five.

Accidental Tech Podcast
624: Do Less Math in Computers

Oh, they were the best, but they were also terrible. You're not wrong about that.

Accidental Tech Podcast
624: Do Less Math in Computers

Oh, they were the best, but they were also terrible. You're not wrong about that.

Accidental Tech Podcast
624: Do Less Math in Computers

Yeah, pretty much. Oh, cheesy peasy. In any case, so that's the thing. I had no idea that was the thing. And I think everyone who was telling me, oh, just get a 2812, you know, yada, yada, yada. They all just assumed that I knew that you could just cut off a slice of LEDs. I had no idea until Kiel said something. So now I know.

Accidental Tech Podcast
624: Do Less Math in Computers

Yeah, pretty much. Oh, cheesy peasy. In any case, so that's the thing. I had no idea that was the thing. And I think everyone who was telling me, oh, just get a 2812, you know, yada, yada, yada. They all just assumed that I knew that you could just cut off a slice of LEDs. I had no idea until Kiel said something. So now I know.

Accidental Tech Podcast
624: Do Less Math in Computers

Yeah, I had no idea.

Accidental Tech Podcast
624: Do Less Math in Computers

Yeah, I had no idea.

Accidental Tech Podcast
624: Do Less Math in Computers

Yeah, isn't that neat? Real-time follow-up, John, I think. Candy buttons.

Accidental Tech Podcast
624: Do Less Math in Computers

Yeah, isn't that neat? Real-time follow-up, John, I think. Candy buttons.

Accidental Tech Podcast
624: Do Less Math in Computers

Oh, man, that's good. But I love the... I mean, everything you said is correct. You constantly had paper coming with them, but God, I love them so much. They were one of my favorites. All right, just a little bit more with regard to the notification stuff. I ran all this by the Historical Commission for the second time. I had kind of done a casual flyby with the Historical Commission, and...