 Did you key and ate a fruit bring you? All right, this week's iron and PI It's from pui audio. They make cool speakers and Annunciators and all sorts of audio projects and products and the most excellent logo The logo is pretty sweet. Actually, it's an updated logo, too They sell a lot like the joy division album that never happened. Yeah So pui makes speakers and microphones all sorts of audio stuff actually here in the US just super cool it was like supporting American companies and This week's MPI actually a bunch of really great MPIs just dropped on giga key slash do so check that out a bunch of cool New sensors and revisions looks like everyone's getting back in their new product game This week we saw this really nifty Product that basically, you know, one of our first MPIs was an all-in-one Indicate look at audio indicator like you plug it in it would make a siren noise and the reason we were looking at products like that Is because a lot of people are making Ventilators and one of the things that I have to do is when somebody starts their blood their pressure is too high or too low They have to make an audio alert. So we were kind of showing off here some audio alerts that just came in on digikey Well, this is kind of an upgrade to that. So this is like, you know, everyone had the same phone like Like no, yeah, it was a star-tech wheelhead everyone had the star-tech and there was like this even before ring tones It eventually people that customized their ring But at the beginning everyone had the same exact ring and then it was like well You could program your phone to have a different ring tone and that's what this NPI basically is it's a programmable speaker That it works just like most of the annunciators that you're used to you know You give it like 12 volts power and usually would be a siren noise or beeps or tones But this time it's got a usp port on the side you see there and you can reprogram it So it's actually like one of the shortest npi's are so easy to use you just plug it in And it shows up as a disk drive called flash very circuit python like by the way Which like that's the lens we look through everything if I'm plugging in something it better show up as a USB drive at this point That's right. So this shows up as the disk we have flash disk It has about four megabytes of free space and then all you have to do is you create an mp3 file You drag it over Like this, you know this actually came with a one kilohertz 0db mp3 tones incredibly loud and annoying, but I replaced it, but wait, why is this even possible? I thought you needed like a license to use mp3 Well, I'm glad you mentioned it because you've actually done a great job covering how the mp3 patent pool has expired And so you can't sell products that have mp3 decoding in them without having to worry about paying a licensing fee Which normally would be like a buck or two per device. Why do that? It'd be threes should be free music. There'd be listen to so what's just me is I like the simplicity Right, it's just a speaker. It's an 8. I'm half-watt speaker It kind of shows up as a drive you drag files onto it And then you power it and it plays the files through and that's it really simple There's no user interface or nothing can go wrong. It uses flash memory for storage So you don't have to worry about vibration or like an SD card coming out So I thought I would demo it. Yeah, and just by the way, I you know, I get Lots of emails from people like all I do is want to have an mp3 play when I turn on a thing for something something something like This will do it. This is the easiest fastest. Yeah, that's way to do it. So this is just an MP3 It's just MP3. So this is the device you can see there's a speaker and then there's these cool mounting tabs It's FCC and CE certified. So it's great for easy inclusion. It's fully enclosed That's the mini. I don't know why these mini beats one thing. That's a little bit of mystery But it's mini be everybody's doctors everyone has everyone has at least one mini DB cable Do that plug it into the disc drive. I dragged over file and then here's just my DC power And once it's done playing the song it'll loop. So we'll start playing it This has a little bit of silent period. So it's nice and loud, right? It's it's effective It wasn't even like the highest power is only on like five volts or so So I thought I'd show the innards because I thought that would be very interesting So thank you assistant for pointing out. I put it right next to me. It's the first thing I asked I'm like what's going on with this? Because I like things that show up as USB drives. Yeah, so I cracked this open and inside so yeah, there's these two power wires and They go into a I can't know the part number one second. It's two five seven six VCDC buck converter. So This is an equivalent to an LM like a net semi part that is very popular you can see here the diode and The inductor and capacitor input and output for the buck converter. They go caps There's a wind bond SPI flash. We actually have SPI is one of our new products So this is a four megabyte flash chip and then this is kind of as cool like Very low-cost all it does is play mp3 chip You can get you the part number That was curious. So there's the LM 2576 the wind bond 25 Q32 and this is the GZ GZ UT ma2 it's all in one MP3 player that pretty much does all the logic, but I just love it It's all enclosed. It's glued shut. It's easy to use and then there's a little Audio amplifier. There's an output capacitor. I guess and then An amplifier chip and then it goes to a speaker that is nicely mounted in this case So it's just so easy and it's not that much more expensive than a normal siren There's on the back. There's all these little surface mount passive components. So that's my MPIs I'd like that, you know, and I looked I think for people who are doing you know car hacking projects or like Halloween projects or Anything that you just want to play a sound yet anything also that you may want to play a sound because you want to think about assistive tech So you might have something where maybe someone can't see something, but they can have a Audio alert all sorts of things you can do and the thing is it's like yeah Could you make this cheaper cheaper by like making your own PCB? Yeah, but nothing beats the simplicity like you know I'll give you another example Let's say if you wanted to have the you know the alert when something happens plays instructions You know we got this so during the pandemic. We said, oh, there's not going to be like Paramedics so we got the defibrillators reach Florida for and if you go through the training basically when you pull The the cord on the device it starts talking to you I just to give you the instructions to save someone's life potentially so I was thinking about that It's like that's cool But like what if I wanted to replace that sounds obviously not a defibrillator But something like this makes it super easy because someone who's non-technical can just plug it in drag and drop a file And now they have maybe another language alert. Maybe they have something else So this is this is like one of my favorite new products by the way, it's the simplicity is what makes it Awesome and speaking of simple and making it easy. All you have to do is get on did you key? It has a to just have a long part number. I will say so use the short URL Z2 DP zero Z and You can pick up one of these API is what's funny is it's called the API to the audio Audio programmable interface or something and pick these up It's super easy and just you know drag the MP3 over and power and it just works for me I'll give you another use. Yeah, you want to have the Star Trek door swoosh sound. Yeah, very easy to do with this You just have to think think think no programming is just turning it on and off. That's right You just hook it up swoosh swoosh swoosh You just have a relay with you know instead of a relay You can just use the magnetic switch that detects when something opens Connected to power connected to this you can use some like wire nuts You can have the door sigh hitchhiker's guy to the galaxy sale I like that So there you go, that's this week's NPI is the API. Yeah