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Stuart Patterson
United States
Приєднався 18 тра 2009
Electronics Maker and Code Monkey. I live by the motto "Learn something new everyday!" I have always had a passion for electronics, computers, coding, and problem solving. Please join me as we explore, build and learn together on my channel!
The channel will be comprised of electronics and computer projects using c, c++, assembly language, analog and digital components as well as microcontrollers and anything else we can throw into the mix. I am an amateur radio operator, AC9LZ, and as such I hope to do some ham related projects as well!
Any action you take upon the information in my UA-cam videos or related schematics/stl/source code/additional content is strictly at your own risk and I will not be liable for losses, damages, or injuries in connection to the use of the videos or the recreation of the projects in the videos. I am NOT a professional Electrical Engineer, nor am I licensed as an EE.
The channel will be comprised of electronics and computer projects using c, c++, assembly language, analog and digital components as well as microcontrollers and anything else we can throw into the mix. I am an amateur radio operator, AC9LZ, and as such I hope to do some ham related projects as well!
Any action you take upon the information in my UA-cam videos or related schematics/stl/source code/additional content is strictly at your own risk and I will not be liable for losses, damages, or injuries in connection to the use of the videos or the recreation of the projects in the videos. I am NOT a professional Electrical Engineer, nor am I licensed as an EE.
KiCAD 8.0 Straight Lines in PCB Editor SHIFT+SPACE
Need to make a square filled zone or square cut edges on your PCB. This is the tip for you! Pressing SHIFT+SPACE in the KiCAD PCB editor will change the line drawing from any angle to just 45 degree angles making it much easier to create shapes with 90 degree straight lines.
Any action you take upon the information in my UA-cam videos or related schematics/stl/source code/additional content is strictly at your own risk and I will not be liable for losses, damages, or injuries in connection to the use of the videos or the recreation of the projects in the videos. I am NOT a professional Electrical Engineer, nor am I licensed as an EE.
Any action you take upon the information in my UA-cam videos or related schematics/stl/source code/additional content is strictly at your own risk and I will not be liable for losses, damages, or injuries in connection to the use of the videos or the recreation of the projects in the videos. I am NOT a professional Electrical Engineer, nor am I licensed as an EE.
Переглядів: 141
Відео
KiCAD 8.0 Select Entire Connection in Schematic Editor ALT+4
Переглядів 6521 день тому
If you are pressing ALT 4 in the schematic editor and the entire wire/connection is not being selected, you need this quick tip! Any action you take upon the information in my UA-cam videos or related schematics/stl/source code/additional content is strictly at your own risk and I will not be liable for losses, damages, or injuries in connection to the use of the videos or the recreation of the...
Building a Z80 Computer - Power Conversion
Переглядів 143Місяць тому
The RC2014 Classic II machine draws about 200mA of current. Even with the CP/M kit installed there should be no issues with the additional PCBs being added to the bus. However, the standard bus does support changing the power over to a DC barrel jack source. So, in this video I will convert the RC2014 over to use the DC barrel jack and a wall wart for power. This will address any future issues ...
Converting the RC2014 Classic II to CP/M - Part 2 - Installing Software
Переглядів 69Місяць тому
Now that we have the RC2014 Class II Z80 computer converted over to CP/M, lets load some software onto the CF card! I will show you how to get data on the machine using Putty and Download.com. We will install NULU, UNZIP, Aztec C, and Adventure. Links from the Video RC2014 to CPM Hex file conversion - rc2014.co.uk/filepackage/ Grant Searles "Download Files Here" - searle.x10host.com/cpm/index.h...
Converting the RC2014 Classic II to CP/M - Part 1
Переглядів 1112 місяці тому
After building the RC2014 Classic II Z80 computer, I thought it would be fun to convert it to CP/M using the z80kits.com conversion kit. In this video I build out the new PCBs and get CP/M to boot. In the next video we will load some old school software and play a few games! Original Z80 Kit z80kits.com/shop/rc2014-classic-ii/ Conversion Kit z80kits.com/shop/rc2014-classic-ii-cp-m-upgrade-kit/ ...
Simple Multimeter Calibration with a Voltage Reference
Переглядів 1 тис.3 місяці тому
Using a voltage reference and a simple technique you can calibrate your multimeters to provide better accuracy. This level of accuracy is far from what a real Calibration Lab would provide, but for some it is enough. AITRIP Adjustable Voltage Reference www.amazon.com/dp/B0B2CRBT54?ref=ppx_yo2ov_dt_b_product_details&th=1 Voltage Reference Module www.amazon.com/dp/B08P44ZG8J?psc=1&ref=ppx_yo2ov_d...
ESP8266 ESP32 WiFi Status Code 7 Solution
Переглядів 1293 місяці тому
Are you getting a status code 7 from your esp8266 or esp32 when trying to connect to a WIFI network? If so, this quick tip might just be the solution you are looking for! Link to information on the WiFi.setPhyMode() arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/generic-class.html Any action you take upon the information in my UA-cam videos or related schematics/stl/source code/additional...
Building a Z80 Computer - Spencer Owen Interview
Переглядів 4003 місяці тому
Spencer Owen is the man that designed and built the RC2014 Z80 computer kit. Spencer shares with us the creation, design, and usage of the RC2014 with a few laughs thrown in for good measure! Any action you take upon the information in my UA-cam videos or related schematics/stl/source code/additional content is strictly at your own risk and I will not be liable for losses, damages, or injuries ...
Building a Z80 Computer - POWER ON!
Переглядів 5124 місяці тому
Have you ever built a computer from scratch? Are you interested in learning how a computer really works? Well, this is the video series for you! In this episode we apply power to the RC2014 Classic II computer and we try and run the 1978 version of Microsoft BASIC on our new machine! We will also look at the Small Computer Monitor as well as programming an EEPROM! Small Computer Monitor (SCM) s...
Building a Z80 Computer - CPU and Backplane
Переглядів 2434 місяці тому
Have you ever built a computer from scratch? Are you interested in learning how a computer really works? Well, this is the video series for you! In this episode we completed the CPU and backplane PCBs in the kit and in the next episodes we will run the 1978 version of Microsoft BASIC on our new machine! To get your own Z80 RC2014 Classic II kit go to z80kits.com/shop/rc2014-classic-ii/ Overview...
Building a Z80 Computer - ROM
Переглядів 6334 місяці тому
Have you ever built a computer from scratch? Are you interested in learning how a computer really works? Well, this is the video series for you! In this episode we build the second PCB in the kit, the ROM board with a 27C512 ROM chip. In future episodes we will build the remaining boards plus the backplane, and discuss in detail how each piece functions and where it fits in the overall design o...
Building a Z80 Computer - RAM
Переглядів 1524 місяці тому
Have you ever built a computer from scratch? Are you interested in learning how a computer really works? Well, this is the video series for you! In this episode we build the second PCB in the kit, the RAM board with a 62256 32kx8 bit IC. In future episodes we will build the remaining boards plus the backplane, and discuss in detail how each piece functions and where it fits in the overall desig...
Building a Z80 Computer - Serial IO
Переглядів 1834 місяці тому
Have you ever built a computer from scratch? Are you interested in learning how a computer really works? Well, this is the video series for you! In this episode we build the second PCB in the kit, the Serial IO board with a 68B50 IC. In future episodes we will build the remaining boards plus the backplane, and discuss in detail how each piece functions and where it fits in the overall design of...
Building a Z80 Computer - Clock and Reset
Переглядів 2845 місяців тому
Have you ever built a computer from scratch? Are you interested in learning how a computer really works? Well, this is the video series for you! In this episode we build the first PCB in the kit, the Clock and Reset board. In future episodes we will build the remaining boards plus the backplane, and discuss in detail how each piece functions and where it fits in the overall design of the Z80 co...
Building a Z80 Computer - Introduction
Переглядів 1,5 тис.5 місяців тому
Have you ever built a computer from scratch? Are you interested in learning how a computer really works? Well, this is the video series for you! In this episode we look at the Z80 RC2014 Classic II kit from z80kits.com and I provide a project overview. In future episodes we will build each PCB component, five total plus the backplane, and discuss in detail how each piece functions and where it ...
Make Your Own Digital Signage with a Raspberry Pi
Переглядів 6 тис.7 місяців тому
Make Your Own Digital Signage with a Raspberry Pi
How to FIX a BRICKED Arduino Pro Micro
Переглядів 2,3 тис.7 місяців тому
How to FIX a BRICKED Arduino Pro Micro
Remove Adware with the Task Manager in Windows
Переглядів 2629 місяців тому
Remove Adware with the Task Manager in Windows
Equivalent Series Resistance (ESR) Meters
Переглядів 2,4 тис.Рік тому
Equivalent Series Resistance (ESR) Meters
Smart Phone Model Rocket Launcher - Part 2 of 2
Переглядів 222Рік тому
Smart Phone Model Rocket Launcher - Part 2 of 2
Smart Phone Model Rocket Launcher - Part 1 of 2
Переглядів 413Рік тому
Smart Phone Model Rocket Launcher - Part 1 of 2
Model Rocket Launch Controller Project - Lessons Learned
Переглядів 1,4 тис.Рік тому
Model Rocket Launch Controller Project - Lessons Learned
Atari 8-bit Speech Synthesizer with ESP8266, MySQL, and the SpeakJet IC
Переглядів 664Рік тому
Atari 8-bit Speech Synthesizer with ESP8266, MySQL, and the SpeakJet IC
ESP8266 D1 Mini Keeps Rebooting / Restarting
Переглядів 3,2 тис.Рік тому
ESP8266 D1 Mini Keeps Rebooting / Restarting
A chat with the Original Designers of the 1980's DragonBone
Переглядів 1232 роки тому
A chat with the Original Designers of the 1980's DragonBone
In file included from C:\Users\(my username)\OneDrive\Documents\Arduino\libraries\grbl/grbl.h:43:0, from C:\Users\(my username)\OneDrive\Documents\Arduino\libraries\grbl/config.h:30, from C:\Users\(my username)\AppData\Local\Temp\arduino_modified_sketch_149513\grblUpload.ino:1: C:\Users\(my username)\OneDrive\Documents\Arduino\libraries\grbl/nuts_bolts.h:51:0: warning: "max" redefined #define max(a,b) (((a) > (b)) ? (a) : (b)) In file included from sketch\grblUpload.ino.cpp:1:0: C:\Users\(my username)\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino/Arduino.h:93:0: note: this is the location of the previous definition #define max(a,b) ((a)>(b)?(a):(b)) In file included from C:\Users\(my username)\OneDrive\Documents\Arduino\libraries\grbl/grbl.h:43:0, from C:\Users\(my username)\OneDrive\Documents\Arduino\libraries\grbl/config.h:30, from C:\Users\(my username)\AppData\Local\Temp\arduino_modified_sketch_149513\grblUpload.ino:1: C:\Users\(my username)\OneDrive\Documents\Arduino\libraries\grbl/nuts_bolts.h:52:0: warning: "min" redefined #define min(a,b) (((a) < (b)) ? (a) : (b)) In file included from sketch\grblUpload.ino.cpp:1:0: C:\Users\(my username)\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino/Arduino.h:92:0: note: this is the location of the previous definition #define min(a,b) ((a)<(b)?(a):(b)) In file included from C:\Users\(my username)\OneDrive\Documents\Arduino\libraries\grbl/grbl.h:43:0, from C:\Users\(my username)\OneDrive\Documents\Arduino\libraries\grbl/config.h:30, from C:\Users\(my username)\AppData\Local\Temp\arduino_modified_sketch_149513\grblUpload.ino:1: C:\Users\(my username)\OneDrive\Documents\Arduino\libraries\grbl/nuts_bolts.h:55:0: warning: "bit" redefined #define bit(n) (1 << n) In file included from sketch\grblUpload.ino.cpp:1:0: C:\Users\(my username)\AppData\Local\Arduino15\packages\arduino\hardware\avr\1.8.6\cores\arduino/Arduino.h:124:0: note: this is the location of the previous definition #define bit(b) (1UL << (b)) what does this even mean sir, this log was I assume is the problem and do you have any solution sir ?
Really helpful. Thanks. Liked and subscribed. 👍
Thank you!
Thanks for this. This issue was making me go crazy
You bet!
It doesn't work for me. I have always that 45 degrees mode. UPDATE: it is working on drawing lines. Not for drawing tracks. My bad.
KiCAD 8? You press SHIFT+SPACE and release, do not hold it down. That toggles the setting between constrained and unconstrained.
I have kicad 8, I'm not holding shift+space, just pressing it. It has no effect in my case.
@@StuartPatterson I'm using version 8.0.5, I tried it in on another PC as well. It doesn't work there either. When I press Shift+Space, it toggles status in right bottom corner "Constrain to H, V, 45", but when I draw a track, it is always constrained. No matter which status I set by shift+space. It could be a bug, or something related to some other settings, or something else. I do non know.
@@Chupacabras222 OK, well thanks for the reply. Sorry you are having the issue. There is a new version of KiCAD; I am running 8.0.6. It does sound like a bug. You might consider reporting it to the KiCAD team so, if not fixed, it can be resolved.
@@StuartPatterson I figured it out. I thought it was about tracks. But it is about drawing lines only. My bad. It is working for drawing lines, but not for drawing tracks.
How can I go about using a proximity sensor to alternate between different videos/images.
The HOW is to complex for a reply. However the project is doable, but it will take some understanding of basic electronics, and C programming on the PI. Sounds like a good project! It might also require some changes in mpv.io but the feature would make a nice pull request.
I'm curious - what software did you use to make the JPEG slides?
I really don't remember, but I think I brought the pptx into LibreOffice Impress and saved/exported as JPG.
@@StuartPatterson Okay, maybe a better question - how does one create even PowerPoint presentations that look that snazzy? I want something captivating/colorful, when I use this to give a history/specs of some rare prototype computers I'll be showing off, but I'm not creative enough to use a graphic design program.
@@paulkhoury3160So, if you are talking about the screens at the start of the video, those are intro graphics I created for different videos on my channel - video thumbnails. I use Photoshop to create the graphics and to be honest, I look at other video thumbnails, that I like, to get ideas on color combinations. I am artistically challenged but looking at stuff I like helps and gives me ideas.
Are ceramic capacitors treated any differently than electrolytic caps as far as testing ESR?
It is my understanding that ceramic caps can still suffer from issues with ESR but it is extremely rare when compared to electrolytics.
I have seen a video that the TC1 type meters need to be calibrated before use.have you done that?
Good question. I have never calibrated one before and have not looked inside one to see how it could be done. Maybe I should.
Can you do a comparison between Antek blue ear vs this one ? How close are the readings ( out of circuit & in circuit )
That is a great idea but I don’t currently own the Anatek Blue ESR meter. If that changes in the future I will certainly compare them.
is it just me that thinks it's weird that the high LED points down and the low LED points up? thank you for the video btw
Good point. I find things like that strange also. High should be on top and low should be lower!
4:13 oohhh that explains it, the LM7805 was being bypassed! I didn't even realize the backplane board had a way to short to bypass the voltage regulator, I'll have to watch out for that when I add the regulated 5v input parts to my board, thanks!
Yeah, it was a good find!
Excellent interview! Thanks for putting this together, great to hear Spencer's journey from him directly. It's amazing how much he has opened up the world of low-level computing he was seeking to explore for others. I'd love to see a similar interview with Steve Cousins, the founder of Small Computer Central.
Thank you! Yeah I am a big fan of Spencer's!
This is a very cool project it's on my list!:)
Have fun!
@@StuartPatterson Yes !!i just received my lcd screen im waiting for the special pins from DIGIKEY cant wait to play with my old Atari 400:)
@@Evilslayer73 Nice! Next thing to check out is the FujiNet
@@StuartPatterson Indeed!
Amazing tutorial, I'm trying to reverse engineer a Aqara N200 lock but I'm not sure if it's a lost cause since I'm only able to connect with the "Mi Home" app.
So, as time goes by, more and more apps are adding security to their devices, which is a good thing, but it makes "hacking" the traffic much more difficult, if not impossible.
I found two adapters to buy, one is like yours and the other is Holyiot nRF52840+PA with a non-removable antenna and magnetic suction reset. Which one to take, because the PA version is +20dBm, while the one you have is I guess +8dBm, but the antenna can be removed and a stronger one installed? I was also thinking about buying the Ubertooth One, but as far as I understand, you can do exactly the same thing with the nRF52840 dongle and save money, it's cheaper.
Sorry, man, I have only used the one from the video and to be honest that was a few years ago. I would not be surprised if there are better solution and/or even using your smart device. I do remember that the one in the video did have some software on it and I did not have to update it. Heck, I am sure there is an update by now!
Was looking for that function for PCB versioning, which is written inf few places on my board. Thank you.
Happy to help!
I have recently bought a S-Drive and Atari 800 recently to re-live my childhood (The Atari 800 was my first machine). I found your video useful in showing me how to use the S-Drive. Thanks ! Can I save and load BASIC programs on the S-Drive? If so, how?
Good question. I would think so but I have not tried. It should be something like SAVE “D0:MYFILE.BAS” If not try google. I just added it to my list for future videos.
very helpful. thank you
Glad it was helpful!
muchas gracias cabra🐐🐐
Glad to help
thank you so match sir
Most welcome. Glad it helped!
This series has been extremely helpful for me in a work project. The pacing is perfect and it's just the right amount of information. I've paid for a lot of content over the years that was lower-quality than this. Thank you!
You're very welcome!
If you set the timing of the slides (jpeg) for 5 sec, how to adjust the time of any videos, having videos with different duration?
In my case, I play the video all the way through, I don't set or limit the duration of the video. The manual for mpv is located here: mpv.io/manual/master/
Do you have an email address I would like to ask you a few questions about
I do not share my email address nor do I do any side work - just way to busy. I am on x.com (twitter) and that information should be at the top of my channel. If you have a question related to the BLE sniffer stuff, you are free to ask it here.
Great video - question. How did you fix your MESR-100 tester when you tested a charged cap? I just did it and it's not working now. Any help would be appreciated. Thanks.
I replaced a diode that had blown. Let me know if you can't figure out which one and I will open my meter and look, maybe it will jog my memory. I think it was pretty obvious in my case.
This is definitely something I needed to see as I'm not familiar with KiCAD but I know Inkscape very well. While I would like to better know and understand KiCAD, my initial response is to use the tool(s) I know best. I was very close to getting this process down right the first time. I made the mistake of using R12 instead of R14 but also, when I imported R12, it just came in wrong. It was a single vertical line. I'll try it again the way you did it. But also, I do not yet understand all of the specific layers and how to work with them. I'm not well versed in the process or the terms used. For the moment, that feels like my biggest stumbling block. But one thing I would like to know is how to do things using ONLY KiCAD. When you completed the main task, you went on and said "OK now I have this ground plane..." and you spoke of what you would do but then you don't do it. Same for some other details. I really wanted to see those things and people tend to gloss over these things as if "everyone already knows." I don't know. Let me tell you a story from my childhood. My first grade teacher assigned us to learn to count to 100. I only knew 10 and the teens a little but mostly just what was on Sesame Street. So I asked my mother to teach me. She told me to ask my older brother. My older brother walked me through the teens and the 20s. He ASSUMED I would recognize the pattern and apply it to 30s - 90s and then finish with 100. NOPE! I was unexposed to that and was never asked to confirm what I learned from my brother. What he taught me was "21, 22, 23, 24, 25, 26, 27, 28, 29" Then he said "30, 40, 50, 60, 70, 80, 90, 100!" So I went to school and was trashed by my teacher who told me I did it wrong and I was completely humiliated. I was a beginner. My bother was not. My mother didn't care that much about teaching us anything. (trauma right?) My brother thought going through the process of TEACHING (which is interactive) was too tedious and so he "glossed over it" and I captured exactly what he said as if it were completely accurate. It wasn't. And it certainly wasn't complete. You glossed over EVERYTHING. I know Inkscape well so that didn't matter to me so much... but I guarantee you that anyone experienced KiCAD user who didn't know or understand Inkscape will feel that you glossed over Inkscape leaving them to struggle over a simple task. And of course, you glossed over KiCAD in the process as well. I did get "something" out of it. And that was "export using R14 into the edge cut layer." That's it. That's the whole thing in 8 words. I would have gotten a LOT more if you actually did more in KiCAD other than "saying I would do this and that and these other things" but you didn't do them and you could have and it would have been a better video. I don't know why people who try to put out information find it tedious to put out information. I started my "tech life" learning to program. And there is no such thing as "glossing over" learning to program. Everything is detail and all of the details have meaning and they all work together. There's no way in hell I would try to teach someone to program without going into necessary detail and demonstrating in detail how things work. Don't assume the viewer knows things. If they know things, why are they WATCHING? You could just put out 8 words! Export using R14 into the edge cut layer. That's the whole video. You didn't even need to make a video. You didn't go into useful detail with Inkscape. You didn't go into useful detail with KiCAD. You glossed over the whole thing.
Thank you for your comment. I read the entire message and will certainly take your recommendations to heart for future videos. I even re-watched my video after reading your comment. Which leads me to a few recommendations. Most of my videos are not introductory; they assume a certain level of understanding. I don't typically rehash the basics because there are SO MANY other videos that are for beginners, for example, knowing what a ground plane is is a pretty basic topic in PCB design. If you are watching a video about complex edge cuts, then typically you known what a ground plane is and what layers are in a PCB. So, I can understand why you are confused. However, I don’t really understand why you would not watch a video introduction to KiCAD and PCB design first? You jumped into the deep end of the pool before learning to swim. Let me tell you a story about my childhood. I struggled with mathematics. My Mom and brother could not help me because my brother is younger and my Mom did not really remember any details from her high school mathematics classes. So, I would go to the library and used book stores and buy or check-out additional math books. I found if I could see the examples explained in numerous ways then it was easier for me to learn. Lesson - using multiple sources helped me learn. You might want to watch my other video on Advanced PCB Graphics with KiCAD 6 and Inkscape. Again, it is advanced, but I do explain the layers. Thank you for your comment and as noted, I will certainly think about it much more and try and take your comments to heart for future videos.
@@StuartPatterson I do know what some of these things are but not necessarily all of the terms which I may understand by different words. My current electronics knowledge is from 30+ years ago in US Navy tech school which does NOT teach design -- just components and basic troubleshooting. As a drawing/design program, I get Inkscape. But not KiCAD -- it's not "natural" to me and I don't really know the process. I only realized today that the "layers" in KiCAD are specific to purpose and not the same as layers in typical graphic design software tools. There's a bridge to cross and I'm struggling to find ways to cross it.
Keep at it and it will get easier. I live by the motto “learn something new everyday.” It is a great philosophy no matter the age!
Hi Stuart, This is great content, I'm new to pi, but not computers in general, some of this stuff goes over my head but I have fast reflex's and catch most of it. I've been Tasked with this Exact project (1st one with a pie). I tried one of the fancy options but it required continual internet access and also overwrote any of my changes to the config.txt file. So as a Noob Id Like to follow your path. To do so can you nudge me in the direction of what OS is best to use with this, it seems like everyone and their brothers uncle have options to chose from. NooB again, I ask because You mention Xwin desktop and also suggest using a newer raspberry os. pie 3b+ aduitfruit 5" 800X480 display stand alone set and forget no wifi/net, Kb/mouse, sound needed. or available after setup. single video on repeat Art install have clean slate micro flash have RPi imager Use windows on desktops :)
Yeah, so I used the latest version of raspbian with desktop downloaded from raspberrypi.com. Your display might need some special config but adafruit should have that information. Otherwise, it is not that difficult. I believe I show in the video how to turn off wifi, etc. Good luck and have fun. Google is your friend!
Hi Stuart! Thanks for this awesome tutorial. I am trying to sniff a "wake on" packet from an ipad to a insta 360 X3. There is no active connection when the camera is off, but the ipad can turn it on via BLE. I cannot see the packets on wireshark unless the insta cam is fully powered up. Suggestions on how to sniff these packets?
Sorry, I have never tried to do that, but if you figure it out please share! I need to get back to some BLE sniffing since it has been a while since I messed with it. I know more and more items are using encryption.
I've found that the DER DE-5000 LCR meter is a much better choice than the GME in that price range. I've had great success with it, and its in-circuit ESR performance is quite good. A recommended improvement for the DER is to make your own Kelvin test clips for the unit. A good test for it was a subwoofer amp that had 12 out of its 16 electrolytics gone to the dark side. All 12 read bad both in-circuit and out-of-circuit. Accurate in-circuit ESR testing is extremely useful. The unit is also excellent for testing inductors, and of course resistors. One MUST DISCHARGE THE CAP first. Beyond safety for the unit, a small charge left on a cap can confuse an ESR/C meter.
Thanks! I need to checkout the DE-5000. The price is certainly good!
@@StuartPatterson Your certainly welcome, and thanks for this video. Just wanted to add a note that there are a few videos on YT about how to fashion your own Kelvin clips for the DE-5000. It's worth the effort and additional expense for the additional accuracy and convenience.
@@matambale OK, I will certainly check them out!
I have the same DMM. It drifts by about 20mV pretty soon after calibration.
Good to know. Thanks.
Thanks for the tips, i also got a cheap one but i thought it was off reading higher then my others, turns out the others were too low when i checked it against a reference. I used the 3.3v pin on a stm32 microcontoller, maybe not the most accurate but the cheap meter read 3.331 so i figure it was ok, and calibrated the other to 3.3v. It was off by .05v which doesnt sound like much, but even for hobyyists setting proper voltages for batteries, you really dont want to be off by much charging a lithium cell. Good stuff, now i got a another usable multimeter. Even if theyre a little off having them all the same is nice.
Thanks! Good idea using a 3.3v pin on the stm32.
The processor section of Arduino IDE doesn't exist anymore, or at least I can't find it, now how do I fix it?
Then I would suggest that there is no "old" bootloader for that device. I am running Arduino IDE 2.3.2 and I see, for the Nano (ATmega328P), the old bootloader is still listed.
Excellent video Stuart! I am using KiCad version 7, and when I open the Image Converter tool, there is only one 'button' namely Load Source Image, no button to save or export the changed file. Any recommendations? I know version 8 is out, but I'd like to finish a project with version 7. Thanks in advance.
So, after you "Load Bitmap" in the Bitmap to Component Converter, there is no Export to Clipboard? I know in KiCAD 8 those buttons moved to the bottom of the dialog. Hopefully, you just missed them.
@@StuartPatterson thanks for your response. No, there is only the one button. I've tried this Image Converter app several times with the same result. Strange. Perhaps it's time to uninstall KiCad 7 and install the version 8.
I don’t have 7 installed to try and figure it out, but maybe there was a reason they turned it off. No idea. You will like 8. I do.
ugly crappy chinese alligator test leads. There is more plastic than copper. Typically 6-8 strands only. By so low copper you get what ever readings because bad connection. Buy or make DIY way better than that garbage
Agreed. They are very cheap!
A bit strange that the pot has this huge range from 4.2 to 5 volts. These 10 turn pots are not known for stability. A bit of vibration could influence the setting. Usually the range is much smaller. Also check other ranges like resistance and current to verify that the fault was with the pot.
Good point. Thanks. Not sure if it is clear in the video but I did not turn that pot much at all. Maybe a quarter turn.
Unfortunately DMMs with manual ADC adjustment pots are becoming a thing of the past in modern designs. For instance, UNI-T made an update to this model - UT61E+. It no longer has any pots.
Yeah, a few I own don’t have potentiometers either. Nothing is ever easy.
Is configuring the on/off switch to auto restart necessary if the Pi already has a power switch? Or this only for version older than Raspberry Pi 5 (which is what I am currently using)?
You don't need the on/off switch if your pi already has one.
@@StuartPatterson Wow, that was fast, thank you. It's not auto running the slides when I reboot the pi. Is there a way to start the slideshow process with a command from the terminal?
@@LNProfessor Yes, in the video description I give additional information including the commands. To start it you and type mpv -fs --ontop --no-border --image-display-duration=5 --loop-playlist=inf /home/pi/your_slide_folder
thank you so much i was about to throw it out i bought some cheap arduino and thought maybe it just doesnt work
Glad I could help and save an Arduino!
Really enjoyed the project! Well done!
Thank you very much!
Love the project! Excellent job man!
Thanks!
Many thanks!
You're welcome!
I like the RC2014 although it is a relative new design it is based upon old technology, and classical electronic parts, with this a new retro computer was made. Many times completely new boards were designed and often it could be combined with other cards, but not always.
I had fun building it and playing around with it. Now I want to modify it for CP/M.
@@StuartPatterson Ah, fantastic! CP/M was the great and only inspiration for Microsoft to come to MS-DOS.
I've been using my OMTech K40 for a few months now, and I'm not impressed. The machine is cheaply made and constantly breaks down.
After fixing the initial issues I have not had any more problems with mine, however it does not get used that much. Only when I am prototyping something that requires a laser cutter.
I built my first z80 system in 1986. I still remember pulling the first all-nighter of my young life getting it up and running. Glad to see there are still people out there who are keeping the flame alive. Nice chat, thanks to both of you!
Thank you for watching and feeling the nostalgia with us!
Great video! I've just managed to get my SDrive-MAX up and running after having bought an 800XL that came with one but, the screen touch functionality was broken. Replaced the screen and then had nothing showing - your video showed me how to successfully get this gadget working again. Thank you. I just now need to figure out how to use it :)
Thank you! I love hearing when one of my videos actually helps someone!
Great video - thanks for sharing. I was hooked on Shamus too. My other favs include Flip and Flop, Encounter and Star Raiders :)
Yeah, I still get the Shamus bug once in a while and need to play!
hi, i have a BLE device that i use with an android app on my phone. When i get into the APP in my phone i have to enter a password (it is always the same password). Then i can open or close the blind on my swimming pool. I would like to catch the BLE Frame that is send when i open my app with password and then the frame that open or close . Is it possible to catch the 3 frames (login, open or close) with wireShark and or nRF ?
Yes, you should be able to see the communications, however, it could be encrypted. More and more devices are doing the "right thing" and providing a layer of security. So, unless the BLE interface is published, it can be very difficult, if not impossible, to reverse engineer.
hi, good video. Is it possible to use this method to decode an BLE Device that require a password ?
Most are using encryption, but if you see it in the clear text, you might have a shot at it.
I love my RC2014. I wish I had access to this technology when I was young and just learning about computers
Yeah, very cool kit!
@@StuartPatterson I just finished watching the build series. I think doing the CP/M upgrade would be great. That's exactly what I did. It's fairly simple because you're just building new memory and ROM boards, plus adding CF for storage. You re-use some of the chips, which keeps the cost down. There's quite a bit to learn though, so it would make good video.
@@JeffRatliffhome Thanks Jeff, I really appreciate your input! I think I am going to do the CP/M shortly.
I can see my port but whenever i try to upload my code, this shows up: ketch uses 1486 bytes (4%) of program storage space. Maximum is 32256 bytes. Global variables use 200 bytes (9%) of dynamic memory, leaving 1848 bytes for local variables. Maximum is 2048 bytes. avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x34 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x34 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x34 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x34 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x34 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x34 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x34 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x34 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x34 avrdude: stk500_recv(): programmer is not responding avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x34 Failed uploading: uploading error: exit status 1
I have many questions and not enough data. Is this an Arduino? Has it ever worked? Have you tried another usb cable? You posted this on the bootloader video, so can I assume you checked it with the old bootloader? Have you removed any wiring that you put on and then tried programming it?
@@StuartPatterson yes, I've tried everything. There was no attachment, the PC was fine, and etc. I've been using Arduino R3. It also uploads for too loooooong, indicating that it won't be read. Any suggestions?
@@kanna7013 Well, it could be damaged. The basic debugging process is. 1) Try another Arduino. 2) Replace the USB cable 3) Check the USB drivers (FTDI vs. CHG340) 4) Remove any connections on the Arduino because you can impact TX RX sometimes. 5) Check the bootloader (per video) If you have tried all those tests, it is possible the Arduino is damaged.