 Okay, Lady, what is this? Okay, so we use this USB to serial converter chip, the CP 2104, it's a great USB serial converter chip. It's very fast, it does little control lines, it's wonderful, it's a QFN package, but with the chip shortage, it's really hard to get this one. However, I can get the upgrade, which is the CP 2102. Yeah, the two is the upgrade to the 04, and it's the N version. And one of the things that I really like about these chips is they have like LED drivers, so this is just showing if I transmit data, the LED lights up, but you have to enable the LEDs, they're not enabled by default. And if you're like me, and you just spent like three days trying to figure out how to enable it, and you're like, it's not working because the N version isn't supported by all the SDKs, and the DLL is not updated, and you have the one where there's a little USB. Hey, by the way, check out this nice person, CR1TBit, they made a fork of this program called CP 210x config that compiles on Linux and enables the RX and CX LEDs. Thank you CR1TBit, you're the best.