Trevor Makes

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@tenminutetokyo2643 15 күн бұрын

The dreaded UA7812! Some TRS-80 color computers used the same part.

@wjrch 17 күн бұрын

bro platformio simply does not appear in my extension to download

@adi-j-uc3qi 19 күн бұрын

i got one but mine came without case, any idea where can i find the case or i can get a 3D printing file?

@Dexter101x 22 күн бұрын

I wonder if modern PC drams can be tested, obviously using a modified circuit and code

@Dexter101x 22 күн бұрын

Wow, this is advanced stuff

@georgepeden 25 күн бұрын

Dude. You have got to slow down if this supposed to be a tutorial. Made it through, but it was a bit hard to follow. I don't think I got the final traces right - you kind of blasted through that part. But thanks the symbol editing, footprint, schematic, 3d view was very helpful, especially the process of making, changing, updating the differreent bits.

@universeisundernoobligatio3283 Ай бұрын

Tried KiCad 8 on my IMac, crashes every time I try to open a PCB, went back to version 7

@saganandroid4175 Ай бұрын

10:58 the Restore key because of a bug in the 556 what the what? You really have to have somebody check your work for coherence before uploading. Clearly you know what you're doing, but you're unable to communicate.

@saganandroid4175 Ай бұрын

4:53 The 80 part is in ASCII, yes. But according to the various charts google just showed me, neither ASCII nor PETSCII give us CBM with $C3, $C2, $CD. What's up with that?

@saganandroid4175 Ай бұрын

4:27 Good god. (Shoots screen, Elvis style.)

@saganandroid4175 Ай бұрын

1:48 <--key info there. 4:12 90% of that does not look like assembly language. Looks like some abomination of C or some damned thing. That will take some getting used to. GitHub? Ewww. 5:02 this requires both Run Stop & Restore keys pressed together I thought?

@SimmeringPotpourri Ай бұрын

I've been looking to get something to test my old DRAMs. My only comment is it would be nice to not have to plug the power cable in each time you want to test another DRAM. I'm sure I can just add another switch for power but figured I'd mention it if you ever decide to modify this version. Also, what is that board you're attaching the Arduino to? It's not in the BOM.

@callofdutyfreak10123 Ай бұрын

This is the type of shit I want on my timeline

@orbita1 Ай бұрын

It's a bit odd, but the checkmark opens a dropdown text box. But i have to click twice to 'build binary'.

@K.D.Fischer_HEPHY 2 ай бұрын

There is a other "easter egg" on this PCB. If you look at the copper pour on the bottom under the reset button, it is in shape of Italy including one Via named Torino. Torino because it is a city in northern Italy where Silvio Navaretti, the Senior Hardware Engineer at Arduino lives. ;-)

@K.D.Fischer_HEPHY 2 ай бұрын

@Novemas12 2 ай бұрын

thanks bro, good tutorial i love you :v

@86Carrera911 3 ай бұрын

Very nicely laid out process! I'm following to create a footprint for a motor driver module that will plug into my PCB.

@drycreek3204 3 ай бұрын

Great tutorial, best I've seen!

@pskoen 3 ай бұрын

My only complaint is that you keep editing stuff out! Major stuff in my view like how do I get this wireless coil off of the battery without destroying it?.

@Sizzlik 3 ай бұрын

Really good job and thinking there! Solar is fun to play around with. What is your big array used for? Just store in batteries to use when needed or specific purpose? I build a similar array, just my panels are 10x15cm in a 8s4p configuration to charge a scooter battery array we use in our summer garden for small stuff like light and background music or rather phone and BT-speaker recharge.

@TrevorMakes 3 ай бұрын

It's all for household power. Grid-tie without battery backup. It generally produces more than needed in winter and less than needed in summer, which mostly cancel each other out. If I were starting from scratch, I'd strongly consider a hybrid inverter with battery backup, since we do have power outages occasionally and it's very frustrating to have the panels sitting there useless when the grid-tie inverter goes down with the grid!

@Sizzlik 3 ай бұрын

Ugh..i love soldering..but desolder..thanks to the flux gods that vakuum desolder guns exist. They are worth every penny. There are also cheaper ones that work like the normal manual thumb pump just with a hot tip (also worth their few bucks but more maintence needed), but the type you showed, the real gun..ahh chefs kiss. Strip a mainboard naked in no time. Really good job you did there, mate! Wish i still had my old C64. Who would have thought that old tech of our time become so precious with age (save your playstations kids..you'll regret to have dump them in 2090)...glad i still have all my sega/nintendo stuff in great condition and saved 4 big CRT Tv's and some monitors from certain death on a landfill. Even still have boxes full of old games in their packaging in really good condition..probably worth quite a penny..but the hell no greedy "collector" will get them. 😂

@TrevorMakes 3 ай бұрын

I did end up getting the Hakko desoldering gun 😂 Thanks! I hope people will continue to appreciate this old tech and keep it preserved, but we'll see.

@honorste 4 ай бұрын

thanks for the video, i didnt use the ifixit kit, but thanks to your video managed to replace my bulged battery and didnt break anything - thanks again

@Robomaiale-kr8my 4 ай бұрын

Oh this explains why a C64 I had sometimes had a ghost image persisting after a shutdown and restart.

@michaelstraughn3465 4 ай бұрын

I have to go do a dooty cycle.. lol

@berinslaptop 4 ай бұрын

would be amazing if someone with the skills could port GRBL or fluidNC to this board. It would be nice to be able to turbo charge cnc and laser machines that are using the original 8bit uno controllers.

@jonathanclark2160 5 ай бұрын

The back of the case just shattered like glass. It is plastic but for some reason when it ages it acts more like plexi-glass. Or glass.

@Janktzoni 5 ай бұрын

Video and sound are slightly out of sync. Very disturbing, makes it sound like a voice-over.

@Pyroteq 5 ай бұрын

Thank you for this great project. I am diagnosing a non-booting Kaypro IV and this has helped me diagnose few bad chips.

@TooSlowTube 6 ай бұрын

Do they make one with more GPIO connections? That's my main reservation about this sort of display with integrated CPU - there's barely any connections to the outside world. Also, can it use a standard Arduino graphics library, like the Adafruit one? The one being used for the demo is really slow.

@LearningCurves123 6 ай бұрын

DO NOT try to open the phone with a pick unless you have the heat gel thing. "IFix it" . Mine just "Popped!" and plastic shards went everywhere. You HAVE to make sure that seal melts enough. to get the picks under. again, DO NOT open it without heating first.

@jamesross3939 7 ай бұрын

Nice! Wow! You are well versed in KiCAD. I'm still learning, got a ways to go for sure! I plan on watching this several times and possibly going through all the steps you take, pausing and rewinding and building one of these simple adaptors. Liked and subscribed.

@TrevorMakes 7 ай бұрын

Project files can be found at github.com/trevor-makes/kicad-2364-rom-adapter

@WagonLoads 7 ай бұрын

I think your videos are very well done, even if some of it slightly over my head. Could you include a KiCad circuit diagram in the related GitHub repo for each video? Also, I have no understanding of how to use PlatformIO.. I like the encryption program you made.. I made one in php that takes over 3600 iterations to get back to the original sequence. pVHMNllMhNBwMe2yywiMNyiMgNllMehVHtMVgMthwMalVHFMVgMrVi3

@WagonLoads 7 ай бұрын

I have a problem I wonder if you can help me solve? I have a TDL Xitan S100 bus Z80 computer with NO OS system.. When I turn it on, all I get is a screen full of simi-random characters... I was wondering what would be the best way to test if the hardware is functional? One thought was to possibly make an interface to use a C64 running hesmon to scan/read every address on the bus, and see if I could poke some life back into S100 bus.... Eventually I want to add every bell and whistle modern computers have: USB, WiFi, Ethernet, i2c, M.2, SIMM, uSD, (2.5 inch HD or M.2 SSD) Currently the S100 bus has 2 (8 bit data busses).. (8 input) and (8 output).. I have no clue why they did this. I made a KiCad symbol/footprint for the S100 edge connector with a full size blank board to put anything on... (The sky is the limit) The pinout matches the TDL Xitan bus...

@TrevorMakes 7 ай бұрын

In an earlier video I made an Arduino project that interfaces with a simple Z80 computer bus and gives you a HESMON-like monitor over the serial port. See kzbin.info/www/bejne/d2G5oYOIjNekfsU I'd recommend figuring out how to adapt that project to the S100 bus signals: in particular how the Arduino takes control of the bus using BUSRQ, how the Arduino synchronizes with the S100 PHI clock, and maybe extending the monitor commands to include reading/writing I/O ports. Build that into a circuit board for an S100 card and then proceed to poke around on the address bus; dump memory where the ROMs should be and verify they're not corrupted, and see if you can talk directly to any of the other S100 cards given any documentation you can find. You might also look into building an adapter board from your S100 bus to an RC2014 module as you might be able to find some existing modules to do some of the stuff you want or at least give you a starting point for designing your own S100 cards.

@Delta_G 7 ай бұрын

Nice. I just learned a bunch of new tricks in KiCad.

@alexanderheil184 7 ай бұрын

Thank you. Really helped me. I also used the iFixit Replacement Battery and Tools.

@typingcat 7 ай бұрын

If you're a P3 owner, DO NOT save important data on it. My P3 just randomly died, and I later learnt that it is a known issue (EDL mode). Google used a cheap storage chip that dies after a few years. Take out all the important out of your phone before it suddenly dies without any way to recover your files.

@tonysofla 7 ай бұрын

I wanted to internally attach a FT3001MPX to the Restore key and then use dual n-MOSFET with an R/C (1K+0.1uF) delay on the gate that controls exprom. So you would need to hold down Restore for 3 seconds, shorter and it acts as normal.

@TrevorMakes 7 ай бұрын

I think it would be cheaper/simpler to use an ATtiny instead of a timer and discrete parts. There are several KERNAL switcher mods that use a timer on the restore key like that. Adrian's Digital Basement has a video doing this with an Arduino, and Sven Petersen and bwack adapted this to PIC/ATtiny chips. Ah, I also found a project that works like you suggest and does a reset when you hold restore down: GitHub.com/alexkazik/restore-reset

@VinuthGamage 7 ай бұрын

How long are the led strips you used

@VinuthGamage 8 ай бұрын

Doesnt arduino nano have 21 Digital io pins

@borayurt66 8 ай бұрын

Thank you very much for taking the time to make this video and answering my question in detail. I think I have some SOIC ATTiny85 somewhere, they would still be somewhat overkill but at least they are small enough to fit anywhere. I will adopt your code to ATTiny pins and test this.

@TrevorMakes 8 ай бұрын

I'm glad you found it helpful! Let me know how it works out.