 But hey, what's up everybody? Welcome to another show and show and tell Please do the show where everybody comes from the community comes together and shows off their awesome DIY project It could be through you printing like Tronix PCBs artwork your kids. Oh my god retro gear is so hot right now Yes, definitely show off all your cool stuff that you're working on we're gonna take a couple minutes and Go through the eat-a-food team and then we'll go into the community But take about only two minutes to show off your awesome project. I'm gonna go ahead and start off with John Park Hey, Jen. Hey guys Almost late because it was like this weekend coffee Yeah, we're just chatting a lot about coffee and I've had a bunch of coffee. So that's good So I'm ready to go. Let me know anybody Anybody who has suggestions in the chat give us some suggestions for like this express So like price is not the limit just not one that has to pipe into the into the kitchen because we just went to remodel I don't want to do that again when it's easy to clean Enough remodeling so don't oh my god. They're not even done yet, dude We still have handles missing. We have to replace one of the cabinets. Oh It sounds like you need to post it up at the top Oh my god, yeah, like all of our all of our worker dudes got like COVID so it's like man How long wait now? Anyway, what awesome project are you working on? So I've shown a little bit of this and I want to do a little explanation where the state of this thing is right now So backing up a bit. This is a model 500 rotary telephone, which these were made from around 1954 or the 80s. So there were Millions tens of millions of these phones produced. They were Rented to you by your phone company. So you usually paid about twenty nine dollars a month to have this in your house I don't know that they ever sold them. These were whenever you find these I got this one at a yard So recently they'll always say something about property of and then this one specific telephone So whatever your whatever your phone company is as a model 500 dm They're tanks, they're amazing Gizmos amazing devices. I opened this one up last week on my workshop show if you want to see the insides I've got it kind of bolted back together right now. I will be reopening it to take a bunch of photos for the guide So what I've done with it first of all these things are really great to work with because they have a lot of Terminal connectors and screws and and like spade connectors on the ends of wires You don't have to cut anything. I know some people were worried on on social about I'm not mangling my phone Well, you don't have to you can get most of the things in here In a reversible way. So what I've done is I've done some connecting of the Dial switch hook which is a little normally closed switch that opens at 20 millisecond pulses when When that dial is turned so I put that up to a kb2040 on one of the IO pins and so I'm reading those pulses I'm also reading This switch hook So that's a separate switch and I can read that on a separate pin to know the state of the phone Is it hung up or is it lifted? The RJ11 jack here this one happens to be a four wire connection four conductor connection. So what I did was I built myself a RJ11 to USB connector using one of our little USB a shells so I can plug this in and that is now going directly to my kb2040 Bypassing all the phone so this is no longer a legitimate phone jack Huh, and then you can either plug it into a computer or a mobile device. So in this case, I'm going through one is all on the go camera connector things on an iPod and Right now in this hung up state it does not show up as a USB device When I pick this up off the receiver the kb2040 inside of there has just Woken up again. It's been reset as a USB device So that means if I touch a dial it notices. Hey, someone's got a keyboard. They're trying to type with So I just reset the password on this to four three two one and Voila, I've just unlocked the iPad using the rotary At this point. It's still just acting as a USB HID device so I can go ahead and type numbers in and The thing I'm really excited about and proud of is having it Do the little reset dance? It just woke up again, but now it's not a USB device So it means the microcontroller is running. I could actually still read it through serial, but I get my Virtual keypad back up on iOS when I lift this it's gonna reset the board as a USB HID device so now the the iOS device is like, okay cool. There's a keyboard again, so I'm very excited about that It's a it's a pretty niche thing to worry about, but it has always bugged me about HID projects when I plug them into iOS you you lose your virtual keyboard You actually have to unplug the thing to get it back. So yeah One other question I've gotten from people is about switch hook dialing which When these phones were in use originally and still on some systems today you could essentially you're sending the same signal to the telephone company when you hang up and so It's gonna screw with this all unplug this right now, but You could dial a one or you could dial one dial a two Dial a two yet the air timing But you could practice called switcher done Hackers like to do a phone freaks like to do it I did it one time in an office building that had a lock on this So they would there was like a little type of key lock that would go on the one And I successfully called my friends by doing Six So I may make a mode for the software That I've heard this and circuit Python that allows us to do that instead Just because it's fun and it's fun to practice with it, but it's actually no different internally than this It's it's breaking the break in that signal So Yeah, so that's the project I'm gonna be working on a guide for it and oh, I'm getting a FaceTime call right in the middle Of this for my brother-in-law So that is that's what I'm doing with this one. I have a Similar type of phone. This was a lineman's hand set And this one I've done similar projects with before these are kind of cool because they were intended by a phone employee to hook up to external terminals As they're crawling around or on the outside of your house. So rather than the RJ 11 plug and great little fangy connectors that you can fight insulation of some wire with Sometimes they're called bed of nails. This is like a bunch of tiny little connections Let you get a connection and then you're ready to ready to dial so this could Now you say this is niche, but this would be perfect for the kid who is grounded and has to type in his Wi-Fi password five minutes as the punishment I've seen some people since I started posting this have shown me some really cool projects other people have built with these I've seen some cases where people Used the letters on here I don't know how they implemented it, but it could be that you have to dial this like three times to get a C and pause and That might be a G if you don't follow up. So you could you could make some pretty tortured ways to enter To force people to enter stuff in using I like that I Think there are projects where people have turned these into voice over IP phones Bluetooth phones. I'm not doing anything Sort of high test like that. I'm just basically turning it into a numpad But if you're interested, there'll be a guide out In a few days, I'll be I'll be getting that out there sweet and that'll be on tomorrow show I think yeah, I might do a little follow-up with this and then if a if I have if everything lines up, I'm also going to be starting a New phone project. So I'm just into old phones in the moment So I've got a different with a different type of old phone also old but different So sort of stop by for a workshop show tomorrow and we'll be to get into more phones What's all this new again, excellent Thanks. All right, we'll see you tomorrow JP. Thanks Cool. Next up. We're gonna check in with foamy guy Hey, Tim. Hello. Oh You're me there we go. There we go. We're good now already Hello folks so this week or the last couple weeks really I've been working on this project which is Reusing old win amp skins. So yes win amp is a Old music player that ran on PCs and there are like hundreds and hundreds and hundreds or Thousands possibly have no idea how many are on this page But there's a a page here that documents all the the win amp skins and you can actually use these in like an online Emulator, but what I am doing is making it so that you can download these and convert them to fit on the pie portal and Then run it on the pie portal and then there will also be a very basic Music player, so it won't have all of the teeny tiny little buttons and everything hooked up But there will be a basic music player And so right now what I have set up are the Couple custom display widgets that we made to scroll the text one for counting the clock there And then this playlist down here is also a custom Playlist widget that I created and right now I have it set up where I can just kind of click on the right half of the bottom of the screen and it will Advance forward to the next track and I can click on the the left half there and it will go backwards And this is just the base skin and of course, you know kind of the coolest thing about this is that you can quickly and easily just change your Skin over so a couple others that I thought were really neat was this Gameboy one And then I'll show one more that was kind of my my favorite one here So I just you know quick and easy change the In background and the config file and then just pop up it you know pops up an entirely different looking one there And I have tested out the mp3 playing that works. I did it with a hard code hard coded file I don't have it hooked up to the playlist yet And it is also quite loud, so I figured it'd be best not to To have that plugged in while we went so I'll leave you with this ASCII one I thought was pretty cool I'll also show you while we're here in the code the the playlist is just in a playlist JSON file So you can make you know making stores separate playlists on your device just storm in the circuit pie drive And change out to whichever one you want whenever you know whenever you want if you have separate playlists for working out or eating lunch or whatever But I found this ASCII one, which I also thought was really cool It's all made of just different ASCII characters, which I thought was a really cool sort of retro vibe How cool yeah, we were watching some of the stream where you were like going over the history of all the women amp skins and everything So yeah, yeah, thanks. Yeah, and if folks are interested Yeah I did stream some of the work that I have done on this and we have a little bit more to do that I'll probably stream on the upcoming weekend Saturday mornings is usually want to stream So folks are interested you can catch the previous videos and and tune in on Saturday mornings Awesome. Yeah, it's like the Saturday morning coding. Very cool. Thanks so much to him. Yeah, thanks Next up is we'll check in with Mark gambler Hey, Mark. Hey, Mark. Hi So more retro stuff So after everyone was talking about it, I was at my mom's for supper on Sunday because that seems the normal thing to do and Started looking so for Christmas My brother's got me one of those handheld football games It's just the LEDs and I had one as a kid Unfortunately, I couldn't find that but I found a couple of things first was this game that I don't think ever worked It's a baseball game It's in parts because I think as a kid I probably bought it a garage sale to fix it and have just rediscovered it now But that wasn't even the exciting thing I continued to look and besides finding my old Commodore 64. I found instructions from a book from 1983 called robotics that I had photocopied I'm building a robot It was really amazing at that time That it had like all the instructions that ten-year-old or something me fuck could follow With the help of my dad and uncle so I wasn't soldering on my own There's the amazing circuit diagram which I've yet to sort of Follow and actually find out what it'll do But then I found the start of the robot That they had helped me build back then So it's just three different relays Some transistors and resistors. I don't think I had a clue what it did at the time. I Did find out that the connector I bought to hook this up to My Commodore 64 was not the right size my mom to this day and still remembers We told her I think 20 pins and was actually 24 Still talks about how much money she spent on this connector that was never used and never returned This is brought up some 30 years later This is also the device that was responsible For me finding out what a fuse was when I hooked up to my Commodore 64 with tape Because I didn't have a connector and one of the wires slept in Cross-connected a couple of the pins. You got to learn some way Yeah, I even found some of the old like Components that it came in so like these are old archer things. They're from Radio Shack apparently by looking at the copyright information and I think maybe the best thing is solder that is probably 30 years old I was gonna say I was just gonna bring that up I still have a spool of some Radio Shack solder that I won't use the tube one and then one that's on a spool I've got a tube one sitting in the box of parts as well. I'm never gonna touch it So yeah, hopefully I get the robot finished at some point now that I've rediscovered it The one thing I've got now that ten-year-old me didn't have is a 3d printer which Which makes a lot of it a lot easier than back then. Yeah, yeah Awesome. Well, thank you so much for this like nice little trip down memory lane. Yeah, keep checking on everybody Thanks. Thanks. Oh, thanks. All right. Hey Next up we're checking in with Tim M. Hey, Tim. Hey, everybody. So so I got even more even more retro stuff So I'm gonna try to Hear and see if I could do that successfully. All right Okay, so I have here a tectronics 453 oscilloscope so this is actually from 1967 to 1971 and this Something my dad actually picked up the company he worked for about 20 years ago was trashing all their analog test equipment. So so it's it's mine now and Didn't need much repair just needed some deep cleaning and a new fan motor And I thought I'd show you guys you get a kick out of this So it's the transistor eyes unit all the transistors are discrete and individually socketed and You have a lot of components here It's this interesting combination of PC board mount and some terminal strips mounted to the chassis a lot of nice Lacing for the cables and so forth and Speaking of vintage Radio Shack I've got my my archer breadboard here with a data fruit microphone So you can see the trace of me talking on On the camera here and on the oscilloscope. So that's what what we've got That is excellent. Oh, he's a fan of seeing it inside because like the way the wires are bundled and then like the hand-drawn Well, it looks like it hand-drawn the traces. Yeah, I like how they're all nice and curvy There you go. Yeah, thanks Oh, thank you so much Tim Okay, one right cool. All right. I was Michael. We're gonna check in with Mike next Hello, hi So, um for like an art project thing um, I made four of these little things and what it does is basically Here I'll show you on this camera here. Um, it has the airfruit glasses driver board So has the nr 52 840 as well as I have it connected to a Battery and a real-time clock. So then basically I had it set so It would like interval Scan and then log it to a text file And the reason why I did this was I had a project where we had to like collect something from people and Visualize it. So I wanted to scan what devices were nearby and then basically Piled it all together and then Like creating that visualization. So I actually have the custom made Python script, which I open source. I put it on github already. So I'll put that in the discord And then this is the visualization of the data. So each Bluetooth mac address Is assigned to a color. They're randomly placed on the screen. But um Yeah, it just shows like the amount of foot traffic through time So it's not collecting any like sensitive data or anything. It's just collecting what devices are nearby But it's quite interesting though to like visualize the amount of people that were in The building I put these in well, that's like Of course it like right away runs my brain like oh man, this is how theme parks are keeping track of you like going through and like What area you're going in? It's like, oh, we'll make this ride even more You know less time or more time so we can like adjust the crowds That is a cool way to visualize the people are going through like a certain section like of a choke point or something It was uh Interesting because I wanted to be able to sort it into like a database. So sql light So in that program that visualizes it It also you can append like what the text files because I have the four different nodes. You could also then theoretically Detect what node the mac address was from Um, I wanted to keep it as less creepy as possible. So I just did colored dots I'm good. I guess the ones that the theme parks probably have all that info like, hmm Where did this person go? Did he go to this shop or the expensive shop? We'll just track him It's just a mac address though. So it's unless if you know exactly what device it is you can't like Yeah, it's still somewhat anonymous, but yeah, no, that's a really cool way to remind people. Yeah, you're probably being tracked by A couple of different people on what you get. It's it was a fun project. That's for sure Yeah Tiles and stuff too No, I'm sure they hide it as well Thanks so much. Michael. This is great. I think what about we'll do just to see like the just people walking by, you know That's a really cool visualizer. Thanks so much. Thank you. Thanks. Thanks All right. Last up. We have liz Hey, hello So first up, uh, we worked on this light bar So it's a vu meter. Um, it's got 16 neopixels and a little mic in the back Um reacts to audio fairly snappily. So, uh, that's a fun learning system And then something I started working on for fun. Um, is I've got been working with um, urorex since and so I didn't set up my camera for it because it's kind of boring, but we got a feather rp 2040 um a 12-bit DAC connect over stemma and then two um audio jacks going out and what's happening is it's sending one v oct to two different synth um and one v oct is the way that urorex sends like note data so it's different voltages for each pitch Um, so then if you want to share my screen I can show the code. Um, and I'm using async i o which I had to play before to basically send, um, two different patterns out at the same time from the DAC Two different outputs from the DAC. So one's just like stepping up the scale and the other one's just going over um, a triad, uh, so Yeah, that was kind of the first time I was playing with getting one v oct then the DAC and the async i o Hey great progress. Yeah, that's awesome. And again, I guess big hugs to Dan for getting that async i o in there. Is this freaking awesome? Yeah, it was really, um The example is really easy to follow. Um, he's right a couple functions and then Put it into a loop and yeah Oh Sweet. All right. Let's see more. Yeah. Yeah. Thanks so much and all right. Thanks, Liz. We're good one All right, that's gonna do it for this week's show and tell. Thank you everybody so much for joining us Super cool. Yeah, um, don't forget post up things in the discord and we'll yeah all the links Next week we'll be hosted by Lamar and Phil. I believe if not, we'll do it again or maybe jp But yeah, that's gonna do it. Thank you folks again, uh page or any last words Don't go anywhere. Uh asking an engineer starts in we're like eight minutes something like that. All right folks See you next week. Bye. Bye