 Five, did you key? And eight for your present. All right, this week, ST micro. Yeah, which we I got you a nice vector logo. So this week's IMPI is from an ST mic controller. So, uh, it is the, I love how they have these rendering with the number on it. It's the STM 32 W L E X, but in this case, the X is going to be five. I say X equals five in this one. Why? Because I'm talking specifically about this is the STM 32, you know, wireless. I think that's the WL low energy is probably what WLE stands for. And five means it's got Laura Wann support. OK, what, what do you, what do I mean Laura Wann? So we actually stock Laura radios and Laura Wann radios in the store. And we have for a while, I really like them. What's a Laura Wann? If you are not familiar, you probably know about Bluetooth, right? That's a low power wireless network that communicates between, you know, your phone and a tablet and your computer or like your watch and, you know, your GPS or your heart rate monitor. And there's also cellular, right? That's what your phone uses. But also there's embedded cellular that gets data, you know, to and from machine to machine from, you know, like a vending machine would send data to a main distribution network saying, hey, I'm out of Sprite come over and fill me up with Sprite. So they know what to deliver. And there's also Wi-Fi. You're really familiar with that. But all these have downsides. So Wi-Fi, you know, it's pretty good, but it's not super long range. There is a limitation, the same with Bluetooth. And cellular has really long range because you can be like within miles of a antenna. But the problem is you have to pay for it monthly. What's really nice about Laura is that it has mild range, but it's free. So we have, you know, we showed you the bonnet and we here is a feather with a RFM 9X. It's a SX 1276 based module. And that's the thing on the right, the silver thing. And then we have a microcontroller in the center that controls it. Well, I mean, what if you didn't need two things, right? There's two things here. Microcontroller, radio. What if we squished them together? OK, well, this is the radio that you would normally use the SX 1276. And it's like, you know, five, six bucks. And and you actually kind of have to use this radio if you're using Laura because it's under patent. But what's cool about this chip is it has that radio like literally inside it. You don't need to wire it up and you even get the SIGFOX and Laura WAN stack. SIGFOX is a paid network that's similar to Laura WAN. I don't use it as much, so I don't speak to it. But if you're interested in SIGFOX, they run the backbone network for you, so you don't have to have a gateway. And that's something you have to think about with Laura WAN. Well, with cellular and Wi-Fi, right? There's an existing router network internet that you work with. But with Laura WAN, you're going to have to set up your own gateway. We recommend getting involved with the Things Network because they set up citywide network gateways and they have gateways available and products available that you can purchase that work with Laura WAN. So even though you have to maintain your own network, there's like a community there. There's people you can hang out. I went to the Things Network and I checked out the devices that work with it and they had like 300 plus gateways and devices that you could use with this chip to create your wireless like mesh or star-shaped network. This is an indoor router that we stock. It's only $99 and it gives you a Wi-Fi to Laura Gateway. We also have one that's much more complicated. It's 8-channel and it goes on a Raspberry Pi. Also, it can give you cellular or Wi-Fi connectivity. So this chip has a lot going on with it. What I really like is it has all the peripherals and timers you want. I think it's even got USB. The low power numbers are excellent. It's like one microamp. It's got lots of GPIOs and PLLs. It's basically an STM32F4 Cortex-M4. I think we're running at like 64 megahertz. That can't quite see me. 48 megahertz with 64K flash. And it's, you know, you wouldn't necessarily want circuit Python on it yet. Maybe some of the bigger chips. But you can definitely run C code and they provide all the C code for you. There's also some security stuff in there so you can encrypt your data. But yeah, the specs on it for the low power are just like incredible. So in stop mode, but with the RTC, it's one microamp. If you're into shutdown mode, you're getting into the nanoamp zone. But otherwise, what's really cool is just you have the radio built in. So this chip, the pricing is also really competitive. It's based on the same prices as the radio. But you get this free microcontroller with it. So you can pick it up. This is the part I recommend. And here's a short URL. Did you get a copy of this sort? 4 slash 4T300P. It's kind of a nice short URL. You can just type in probably STM32. STM32. WLE. But let's look at the overhead real fast because I want to show you the Nucleo add-on. So this is, it's kind of cool. It came with a little tin. And I just removed the tin. It actually wasn't even soldered on. It's clipped on, which is pretty sweet. Let me just now zoom in into the analog section. Okay, so this is the analog section. And I just want you to see that you, this is the chip. And so the one I picked was a QFN, but it doesn't come in BGA if you want it really small. You will need to create your analog section, right? It has a radio, but you have to handle all the antenna interfacing. And then this is the antenna. It runs, I think you can do like a hundred to about a thousand gigahertz. It's sub gigahertz. You don't have to use Laura. You can also use like FSK or BFSK or whatever. You have all the other encodings, although I picked this because I really like Laura. And I think that the idea of an all in one chip is great. You'll have to tune this antenna section for the antenna frequency you want. So even though just, some people ask me all the time like, oh, I can tune this between 100 and 900. Well, that's assuming that your antenna is good between that range and that your front end area is tuned to that range. If not, you're just gonna have to pick, you know, a narrow band about a hundred megahertz and stick to that. So that's the STM32WLE5 series. One thing to watch out for. There's also four and other chips. The five is the one that has the Laura WAN stack come with it. So that's what I recommend if you wanna do all in one Laura microcontroller stuff. Okay. And then we have a little bit of a short video from STM. And that's what I'm gonna be like. I love this one. I am excited when they make one with a little bit more RAM. I think it's gonna be a great circuit python chip.