 Hi, on MPI. Hi, on MPI. Brought to you by DigiKey and Adafruit this week's latest new product is from Murata. Murata. Lady Eda. What is this week's Ion MPI? Okay, this week's Ion MPI is this really cool all-in-one module called D1SJ from Murata. And Murata is the packager. And what I thought was really neat about this is this very, very tiny module that has everything you need to make a pretty advanced Lora WAN-powered project. It's not a router, it's like the end node, but if you're making a product or a project where you want to basically add long-range, multi-mile communications and you don't want to have to spend money on SIM cards and cellular and NB IoT, and maybe you're outdoors so you don't want to use Wi-Fi, Lora WAN is a really good option. Lora WAN is free. The licensing fees are paid when you purchase the modem, unlike SIGFOX where you often pay per message and NB IoT where again, you buy the modem and then you have a SIM card and you pay per message or per month. So Lora WAN is ISM band. This is in particular, this model is a 900 megahertz-ish radio. It's really tiny. I thought actually I would show it on the overhead first and then we can talk about what's in the module. So this is it, a really tiny little module. This is the eval board from Marata and you can see how skinny this module is. I'm starting to see more RF modules like this, these little epoxy silver modules. It looks like it needs a public inductor for a built-in buck converter, a couple external capacitors and passes. So really no crystal or anything else, it goes straight into an antenna port. You can attach any kind of antenna onto it. Okay, sorry, so let's go back. So this module is made by Marata and inside of it is a SX1262 and that's the SEMTEC Lora module. This is the module that actually does the RF stuff. Again, SEMTEC is the licensee for Lora. If you want to use Lora and Lora WAN, you're pretty much going to be using SEMTEC chips. This is a recent chip that they've got driver code and I'll show you in a moment. A lot of the code that we've used is I think for a slightly different chip. I think it's the SM1676, so this is I think a more modern one. It's connected over SPI, you see there with SPI reset, busy and antenna switch connected to a also built-in STM32L072 or 82. It's also got a crystal built in, so all you need to do is really provide power and you've got everything you need and then the bottom pads have all the breakouts for the, as you see on the right, USB, UART, iSquad C, SPI, ADC, GPIO, etc. Of course, you can buy the chip separately if you also check out the datasheet for the STM32L082. It's an STM32L0 series, it's a Cortex M0, I think it has like 192K of flash and like 32K of ram. It's a powerful chip but it's also ultra low power. You can really get this down into a couple micro amperes of current. It also looks like there's a DC-DC converter, so that sometimes helps cut the power even more. Which makes sense because a lot of times you're going to want to use these for sensor nodes where you may be, let's say you're making a agricultural sensing element. It's out in the field, it's measuring humidity, pH of soil and temperature and it's sending it back to a base station a couple miles away. You don't want to go around and have to change the battery constantly. Ideally it runs off a little solar panel or a little battery and it runs for years on its own. So you want to have an ultra low power microcontroller and the new STM32L0s are great for that. They're designed specifically for low power applications. You get more details, of course, on the STM32 website. And then the other half is the SX1262, this is the radio. It communicates over SPI. Anyone who's done LoRa, LoRaWan with Python or Arduino is familiar with the SX series of chips. This radio can also do like FSK, I think you probably can do ASK. You don't have to use LoRaWan, you can do simple modulation as well. But chances are if you're getting this, you're paying the extra couple bucks because you want to have the LoRa licensing. And then SEMtec has a separate data sheet just for this chip. So remember the Morata kind of took those two parts and kind of made a little lasagna out of them. Morata isn't really, they'll help you get it going, but really what you're dealing with is a module that has combined these two things that Morata is just very good at doing the packaging for. And the packaging is nice and small as I showed you. It's a very small, thin, pick-and-place surface mountable module. What I like about these is compared to a tin module, like there's like no ingress. I'm not saying dunk it under water, but you could pot this and not have to worry too much about moisture getting into the package. It's a fully epoxy shape. And because it's a low power, you don't have to worry about heat dissipation either. If you want to get started with the coding, I mean the STM32 is a well-established chip. SEMtec has drivers available officially on the embed distribution page, but if you look it's actually on GitHub, so you go to GitHub and this is a C driver, which you can then probably fairly easily port to something like Arduino or they have example code for STM32Cube and such, but I'm always interested in like how can I do this with Arduino and there is Arduino support. I mean you can make this work with Arduino using an online like people that I remember when I was looking for this chip, there's STM32Duino and there's also a couple other community-based STM32L zero series board support packages. Like here's one I found for REST. So you want to make a lower WAN node that uses REST? Go for it, all available. Right now you can get the eval boards, that's what I showed off. It's a nice eval board, it's got everything you need. On the bottom left there is the JTAG SWD debug. You know micro USB connected to the USB of the STM32 and it's got Arduino-ish headers and then antenna. I mean the board is much bigger than it needs to be. You can see like the modules kind of floating in the middle there without a lot next to it. This would make a very cute feather maybe. Maybe I'll design something like that. Coming soon. The eval board is available right now. The modules are currently unavailable. We've tried very hard to only focus IMPI on stuff that either in stock or coming in soon. They're going to have these in stock in a couple months but you can check it out, pre-order it. Digikey could also probably help you get some samples if you only need like five pieces to get your design off the ground. They'll work with Morada and I've had done this before. I've been like hey can you just like get me a couple pieces and the sales rep is like yeah I'll get you a few just so you can get your design going and then you can book a real through Digikey. For the price you basically get like two $7 chips merged together, packaged for under $10 a piece. It's a great deal. You get a very powerful chip and a really good radio. Laura Wynn compatibility and licensing already paid for. All you need is a 10 a couple passives and like it's tiny. It'll fit into like a little tic-tac box or something. Okay and we're going to play a little video and then right after that we're going to jump right into new products. There are times when we want to remind ourselves what we are capable of. When we defy the status quo and keep innovating and push limits. This is Yumori, a multi-stack LP-WAN module equipped with Morata products and designed by Sentinem. Using Yumori's platform we are going to show what LP-WAN is capable of. Even under the most extreme conditions. But how? We are taking Yumori to near space. Launch is imminent. Inside the payload, Yumori uses a wide range of sensors to capture the environmental conditions. Utilizing cutting-edge long-range communication and localization technology, Yumori transmits all the data it has collected back to Earth. This signal is captured by our gateway and hundreds of other gateways around the world. The interface visualizes altitude, transmission range, location and several other data in real time. After reaching an altitude of 40.2 kilometers, a parachute is activated and brings Yumori back down to Earth. Mission successful. On its 300 kilometer journey under extreme conditions, Yumori gathered and communicated various data and proved the capabilities of LP-WAN technology. One thing we can say is, with Yumori, the possibilities are endless.