 Good evening folks and welcome to the eight approved show and tell my name is Melissa and tonight we're going to go ahead and start out with Liz Hello, Melissa Hey, thanks for hosting Tonight I've got the Memento camera and it's connected to this thermal printer is the cat printer It's become kind of I feel infamous on the internet But what I've got going on the Memento is running our dweeno code that is using Kind of a variation on the Game Boy filter which Jeff had added to the core and my cats just had a fight next to me Um, and so it's giving you that pixelated grayscale goodness that we come to know and love And I've got agent Dale Cooper here, which is appropriate because we're coming up on Twin Peaks Day So if I take a photo with the Memento right now It's going to start printing to the thermal camera a thermal printer rather here So I added a little border kind of make it look like a Polaroid also added shot on Memento If you don't want the filter you can also press select and it will do no frame and we can do a little plant print that At first I couldn't get this working what ended up Getting it to work was adding some delays To the library and then that made it so that the images prints correctly and the code keeps running on The Memento and everything is good But I'm writing this up as a learn guide right now and I'll have the code compiled as a uf2 So people can drag and drop it And I also have a page on there kind of talking about the troubleshooting stages. I went through To get it working. So if you ever try to maybe do a project like this, you can see kind of thought process But yeah, it's been fun to work on and I'm glad I got working kind of gives that Game Boy printer vibe from the 90s Yeah Well, so which library did you end up having to add the delays to yeah so there's this really awesome catchy effects library that is by The night tech and it works great like the I was able to compile the demo For the pie camera away and that worked fine But then what was happening was when I was trying to print the whole image buffer From the Memento to the camera like it would print like halfway. I actually I think I have an example here Yeah, it would print like half the image and stop and it would still be connected on Bluetooth I discovered at first I thought it was a Bluetooth issue And so what ended up happening was if I added delay in between the the rights then That makes it so that everything flows nicely So that's why you get that little pause kind of in the middle of printing but makes it more stable long-term Because like the code's still running and everything like before it would it would stop so it's been nice Yeah, thank you for stopping by and join that of course. Yeah. Thanks for hosting Yeah That's the next step we have DJ Devon 3 Hi Are you ready DJ? There we go. Can you hear me? Yeah, okay? Yes? Wow, there's only two. Okay. This is yeah driver that I came up with that uses the Xpt 2046 touch controller and It this calibrates if you like go to the bottom corners and so this is an auto calibration So I wrote the touch driver and that's working And then I will unplug that and then I will turn the light on whoa overexposure So I designed a little PCB. That's like a feather wing adapter for the display So I've written the touch controller the display controller and the SD card is built into the back of this thing and this is basically just comes apart a little sandwich pins and then added a little feather this custom PCB and Started up and should just Might be a little too dim. Ah, and I crashed No, and I have Hitchhiker's Guide to the Galaxy Just the first couple of paragraphs of hitchhiker's Guide to the Galaxy as a demo For that that's just for the display demo. So I have a touch controller working a display working SD card works as well which I have tested and There's well two more things that I'd like to show and since some there's like I don't know if there is anybody else here. Is it just me because I can take up time if you need It's just yeah, just you is Okay, so these are 2.5 millimeter pitch matrix panels cute little guys And If you've seen that 12 panel matrix display Using the five pitch five millimeter pitch panels as well as syndromes 25 panel display You'll know that if you want to make an array of any sizable appreciable size you need support brackets So this goes with 3d printing And there is a support bracket and it's nicely wedged in there and then if I I only have the two panels So I kind of have to like You know pretend So that everything lines up nicely and that way I know that I can add in a larger ray Using these support brackets and there will be four, you know bracketed together. These are pretty nice and chunky so these will these will take a lot of weight and That's my 3d printing stuff and then another project. I'm working on is the same display But another custom board and this one has hard to see focus Yeah, a little cutie pie. I'm gonna try and run this whole thing off of a Cutie pie s3 And that's another custom board And then this just kind of comes apart like that. Oh, yeah, it's also a little fraggle rock graphic I made for that and Then that just comes apart like that. So that's what I got so far I've been pretty busy having a having fun time and thank you for hosting Melissa Yeah, that's all right. Yeah, um Regarding the matrix penalty, I did a message board guide and I had designs that were similar to that Yes, the matrix panel project that I worked on with a 12 panel would not have been a success without a lot of work That was done by you with the RGB matrix drivers So I'm very appreciable appreciative of your work on the back and even though it's you know You mostly work on on blink of blood a lot of that stuff does transfer into circuit python as well. I Do well, I did a little bit of work on the back end, but I worked mostly on the front end stuff like the libraries and stuff it was Jeff Epler and Bill Pettio-Dragon that Did most of that work for the back end there? Yep, and they had to update the matrix because syndrome broke the matrix a couple weeks ago They had to update it like it's like From 16 bit to 32 bit and Now that enlarges the theoretical maximum amount of array panels from 25 to 50 Nice I've done 12 and I'm planning to do a larger one And the plan is syndrome and I are gonna attempt to break the new matrix ceiling Maybe someday it's gonna be costly because these matrix panels are not cheap No, they're large Large amount of panels is you know, it's something that you have to add on to so you start out with something like you know Two panels and then you get two more and then two more you just add on to it over time And eventually you'll get something now the 12 panels that I had that are five millimeter pitch They're huge. They take up a massive amount of wall space. I don't have a big enough wall So I had to go with the 2.5 in order to try and increase the amount which also Decreases the circuit The copper length that the copper has to travel so I'm thinking have the length You might be able to get more signal integrity, you know for longer travels. That's a theory And we'll see if we can break the matrix again sometimes here. Hopefully Yeah, the Limiting factor might just be at the processor itself At this point yes the S3 I do not think is gonna be able to do it And the IMX series Is it gonna do it because the IMX doesn't come with enough RAM? But if you combine a whole bunch of RAM with the IMX speed, I think it could do it Cool. Yeah Well, thanks for stopping by and showing that off. Well, thank you very much and everyone have a lovely week cool things and That does it for our show and tell for this week. We have the Eskin engineer in about 20 minutes starting at 8 p.m. Mr. and That about wraps it up. So have a good evening everybody