 Okay, the first part of top secret is going to be a video and then we're going to go through a bunch of boards 1 2 3 4 5 6 7 This is an 80 tiny 8 1 6 board that's programmed over UPDI It's interesting here is I've got a button and when I press the button almost LED stops blinking because I have the UPDI button Set as a reset button, which is kind of nice You can program or reset the circuit normally the reset doesn't work What you have to do is actually enable the ability find it UPDI there you go Danger bricks chips that high voltage UPDI programmer So when you set it to be a reset you can't just send the UPDI signal normally because that could be computer reset signal You have to send it at 12 volt pulse and so I have a version of my UPDI friend here Which is in the shop this version has a 12 volt high voltage pulse So there's a little boost converter and analog switch when the RTS pin toggles It sends a 12 volt pulse to tell the ship Hey I want to put you in programming mode so that way you can program it or use it as a reset input kind of handy So now that I know this works, we're gonna get this finished up Fix this little blue wire hack and get it into the shop. All right. What's this? Okay? This is the back of oh, can you can you maybe click on that first this one? Yeah, that's the front Yeah, oh, I see. Okay. Yeah. So this is Yes, I just you there's usually only one image of the sentence to this is like an evolved proto Prototyping pie cowbell. So I want to get back to doing some cowbells We do we're doing them in like 20 22 ish and then like kind of I took a break I'm getting back to it So this is the prototype one, but if you look there's terminal blocks on each end and so what this means is that you can put Like second handers on this and you can plug it into Or I was very high Pico put the Pico on top and plug into something else and then you have terminal blocks. You can easily wire up Sensors or other devices without soldering. So it's like meant for making prototyping a lot easier I'm also getting access to pins even if you have stuff plugged into the Pico W or Pico. Okay Just a micro vision for the s 35 710 timer again I thought it was a low power timer, but it's actually a watchdog timer, which is a different thing, but still kind of useful If I updated this to add a first of I changed it the inverter to be an n channel I also added a little slide switch so you can determine whether you want to have the output inverted or not Okay Also getting back to some trinkets The opposite of a chip shortage is a chip surplus and I actually have a little bit of a surplus of the same d21 e18s I had like none for like two years As one of the things that was a little annoying about the part shortages You know, we were kind of told you have to order two years worth of inventory or a year's worth of inventory We're like okay, and then they shipped all year or two years worth of inventory or one So kind of got like two years worth of these chips, which means I want to design a whole bunch of trinkets So I thought this would be a fun easy once the sht 45 is a nice precision temperature to humidity sensor This means this little board you can plug it into your USB port on your computer your laptop and boom You now have an instant precision temperature humidity sensor It's gonna pipe the data out over the USB serial port in like CSV format and you take that data you can plot it You can manipulate it with some other program like Python or VS Code or visual basic or whatever It's also got a little neopixel and a reset button. So you'll see and there's a capacitive sensor on the end This is okay, so I was working on the DS 4420 which is a monophonic audio volume like slash gain chip and then And I was like, oh, what was I working on it? And then I realized we did an IMPI on the stereo version of like found the same chip So TPA 60 130 is a stereo headphone amplifier that can drive 16 ohm loads, which is kind of nice directly and You can adjust the gain for two differential signals at stereo input over ice board See, I was like, oh, it's gonna be kind of useful. You have audio output You want to adjust the game and you want a headphone amp, you know bonus Hopefully it turns on, you know, like when you plug it in like you don't need to change the game It just acts as a headphone amp to start, but we'll find out It's a little semi-qt board to do that I also have a bunch of extra B&O 055s and BMP 280s And I thought this would be a good little sensor BFF to go onto a QT PI or shall board Basically gives you 11 DOF so you get three DOF of Exilometer gyro-magnetometer and the B&O 055 Does the fusion for you, which is kind of nice So even if you have like a very slow chip or using micro Python You'll get quaternion data out and then the BMP 280 will give you barometric pressure and temperature So you can do altitude detection So it's gonna be good for like little drones or robots or like, you know motion detection And then this is that revision of the DS4420 the monophonic audio amplifier or audio gain adjuster Just needed like a new power supply That's a whole bunch of new hardware coming More too. I've been almost done with this camera