 The Great Search brought to you by DigikeyNative for it every single week. Age of Fruit and Digikey team up and Lady80 uses her knowledge of searching the Digikey site to find the parts you need. Lady80, what is this week's Great Search? Okay, so we actually just talked about using the same board layout with parts that have the same pinout. So BMP280 and DPS310. I've talked about the VL53L0X from ST and there's the 53L1CX. So again, you know, sometimes companies will reuse or competing companies will use the same pinout and package which is like really awesome because again, you don't have to re-spin a board, you don't have to re-spin a tester, you can recycle the same layout. So this week I was tasked with, and you'll see why this is, you know, in thematic, we just ran out of ADXL377. This is a really cool chip. Anyone who devices courses is one of the first companies to make, you know, analog and digital accelerometers. They're famous for it. This is a 200g accelerometer. Now most people don't use 200g accelerometers. They use 2, 4, 8, maybe 16. 32g is kind of a high end, you know, for like, you know, sports and some automotive. But there are, you know, rocketry and mechatronic and robotic reasons that you'll want up to 100 or 200g output. This accelerometer, it's funny. I think this actually uses the same pinout as the ADXL326. I think this one, maybe it's not, but it's very similar. They have a lot of LG, it's 16LGA sensors. And yeah, I really like this one because it was a 200g analog output. And I was like, well, I'd like to see if I could find a replacement. Analog is kind of nice. It's ratio metric, which means that in whatever the V, sorry, within the 3.3 volt output, it's, you can use that 3 volt output into your analog reference for your microcontroller. And then exactly halfway 0g and then, you know, as it all the way to 3.3 volts is plus 200g, all the way down to ground is negative 200g. So one of the most interesting is, you know, one reason that you will have, I like to, you know, when a sensor becomes obsolete, it's just became obsolete, it's a longer manufactured. I sometimes like to look at the obsolescence document. So this is interesting. So, you know, there is a last time by date, which just passed. But I'll say that again, with the silicon shortages, these last time dates, these, you know, what they mean and what, you know, it's, whether you can actually get them is different. It used to, you used to have a little bit of time, you simply get the parts. And now I'm finding that when it's gone, it's really, it's gone gone, that end of line time. So I think we have a couple more in order, but I did want to find a replacement. What I thought was interesting was that this ASIC process is being discontinued by the foundry. I have seen this happen. And when this happens, you're really, I mean, there's, especially interesting analog process chips. I'll see that they're discontinued and it's not like, oh, you know, they're not popular. It's like, no, that process, that there's not enough companies using that process. The wafer foundry, the company that makes the silicon is actually going to shut down that line. And they're going to replace it with a more profitable line. This happens and when it happens, you are totally SOL. I think there's a couple of Macs and chips. I think they, a couple of analog chips that I got from Max and I remember were also shut down for similar reasons. So that said, you know, I was like, at first I was thinking, okay, well, let's find, you know, analog XYZ, you know, chips. I didn't select plus or minus 200 G because, you know, maybe there's 100 G available. And of course I want surface mount. So let's see. And then let's look also, of course, only active. See all the analog ones, and you'll see, you know, some of these are the, you know, old mill spec ones. These are some of them are quite ancient. The 335 series we've been carrying for quite a while. But I thought maybe let's look at, you know, the high G rate. So maybe, you know, 50 to 500 G. And unfortunately, you know, they do exist, but they're all like super expensive. They're like about $100 a piece and they're available only from TE. So these are very specialty parts. This is kind of why I sort of have to make a decision. Look, you know, this analog, but I'm not going to get an analog version of this accelerometer, but maybe I can get a digital version. You know, maybe I have to give up on the end. I do like the analog ones. I think they're really cool. But I also know when to give up. So going back here, we're just going to go to accelerometers. I only want active ones because I don't want to go through this whole process again so quickly. And then I want XY and Z. I really only want triple axis accelerometers. It's very common these days. And then acceleration range, you know, I do, I want to see maybe, you know, 50 to 500. 6000 G is kind of bonkers. I'm not really ready for that. So 250 to 500. And you'll see that, you know, there are a couple really expensive, you know, industrial use ones, but there are also a couple of inexpensive ones as well. Looking at price, there's the list series. I'll say you can't get any accelerometers from ST for next year. So I'm going to skip that one. The list 200. I think we stock this one. But this was kind of interesting. Again, I really like analog devices for their accelerometers. So this 200 G accelerometer, first off, they have a lot in stock, which is really nice. Another thing that is cool is that they are, they have this package, the 14 LGA and the 14 LGA pinout is shared with almost all their other accelerometers, which is why I was talking about shared pinout. So this, this is the, the pinout for the accelerometer. You can see it's, you know, not all the pins are used or some reserved, but it does have two interrupt pins, SPI port and I squared C shared, which are really, I like it when sensors are like, look, we can do I squared C or SPI because I feel like they really, you know, I squared C is tough to bit bang, but SPI is quite easy. SPI is also faster. If you really want to get the data out much quicker. Of course you can have multiple sensors on SPI. So I'm really like, I'm always in love when sensor companies have I squared C and SPI dual purpose interfaces. But thankfully, you know, this LGA, when I saw this, I was like, ooh, I wonder, you know, hopefully, is that going to be the same as the, the other LGA accelerometers, the, sorry, ADXL 345, which is ancient and historic, right? This one. And also, the 343, which is kind of like the next gen of the, the 345. And, you know, we featured this on the Neo trellis and one of the data boxes. It's a very nice, very low cost accelerometer. And again, I've got devices that do a really, really good job with their accelerometers. They're not the cheapest, but they're like really reliable, very quiet and you get really good performance out of them. So thankfully, this board, the 345, which is the same pinout as the 343, is, you see, I also did a feather wing of this, this board. These are the same pinout. And so the 375, I was like, oh, you know, this is an easy, you're normally, it wouldn't spin up a whole new board for this accelerometer. But if I can reuse that same design to all three of them, I'm, I'm, I'm loving that because I really like to have one design. So I did, let's see, it's gonna be recent. So for the ADXL and the ADXL 343, it's actually one of the last boards that we did before we changed over to some of our standard static QT format. So I was like, you know what, let's make a breakout for this board. And while I'm at it, revise the 345 and the 343. So this is what I came up with. It's, it's a little bit of a tight fit, but it does fit. Let's do top silk. So the accelerometers in the center, we've got four big mounting holes, I squared C down here, and then the extra SPI pins up here, and then everything, everything fits. And there's a little bit of room for the part number. And then of course, on the back, I can have even more part number info, but maybe I'll, you know, over here in the corner, I can maybe fit an XY coordinate marking. But yes, it's the design I made and that's the accelerometer I picked. I wish there was an analog 200G accelerometer, but I think, I think the days of analog output accelerometers is kind of over. But you know, I squared CSPI is available. And I think not only is this chip going to be pin compatible, but it's likely going to be very close software wise as well. Probably will be we use the Python and Arduino drivers that we've written for the three XX series for the 200G accelerometer. So I'm going to pick some of those up and spin out this board and I'll mount it on and it will just work. That's a great search.