Today while watching Ultimate Trace Repair Guide for Ripped Connectors I learned about RustyMeter which will work with my OWON XDM1041 multimeter. I’m definitely going to be checking that out soon. Thanks to nanofix for the tip!
Category Archives: Video
Electronics Project #11: TJ-56-428 4-Digit Digital DIY Clock Take 2 | In The Lab With Jay Jay
This post is part of my video blog and you can find more information about this video over here.
You can support this channel on Patreon: patreon.com/JohnElliotV
Silly Job Title: Wattage Warlock.
In this video we build the TJ-56-428 4-Digit Digital Clock just like we did last time.
You read that right. We made one of these before and I liked it so much that we are making one again! I get better at it this time round, I don’t make any of the mistakes I did last time.
In the introduction to this video I mention about my new Blu-ray player which I got so I could watch Colossus: The Forbin Project. Both my Blu-ray disc and my Blu-ray player are for Region B.
As I mention I have been writing for Hackaday! So that’s been keeping me busy.
The instructions for this clock are over here: TJ-56-428 4-Digit Digital DIY Clock (same as last time).
I mention about the new Learning the Art of Electronics project which we’re just about to get started with.
The microcontroller in this clock is the STC15W404AS. It comes in the kit pre-programmed and I’ve not been able to find the software anywhere. Bummer. If you know where to get the software please do let me know!
The temperature controlled resistor is a 10K NTC thermistor which seems to be used for the room temperature function (which I don’t use and didn’t calibrate).
The crystal oscillator is spec’ed as 32768 which is obviously a reference to the clock frequency. See Why do we use 32.768 kHz crystals in most circuits? We check the impedance of this device in the video using the Peak Atlas LCR45.
In the video I mention my mate Joe who helped me out last time I did this project. Thanks Joe!
We use the METCAL PS-900 Soldering Station to do our soldering.
We use the Fluke 17B+ Digital Multimeter to test the voltage on our USB power adapters.
We use the EEVblog BM2257 Digital Multimeter to check our resistors.
We use the Peak Electronic Design Atlas DCA75 Pro Semiconductor Analyzer to test the crystal (we don’t get a reading, which was expected).
We use the Peak Electronic Design Atlas LCR45 LCR Meter to test our crystal. It gives us an impedance reading at 200kHz with both real and imaginary components.
We use the Hakko CHP 3C-SA Precision Tweezers to hold our solder and poke about. At one point I drop a component lead offcut into the board and it shorted two resistors, so lucky I found it and pulled it out!
And that’s everything to know about this project!
Here’s a photo of the completed project installed next to the symbol keyboard on my desk:
Thanks very much for watching! And please remember to hit like and subscribe! :)
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Yum Cha DT830B Digital Multimeter notes |
Let’s go shopping!
Homework
This is a part of the homework feature of my blog, which is an ongoing conversation with my mate S.F.
Hey mate. Lovely to see you again, as always.
It was Nietzsche who said: “He who has a why to live can bear almost any how.”
Wikipedia explains the Chinese room argument:
The Chinese room argument holds that a computer executing a program cannot have a mind, understanding, or consciousness, regardless of how intelligently or human-like the program may make the computer behave. The argument was presented in a 1980 paper by the philosopher John Searle entitled “Minds, Brains, and Programs” and published in the journal Behavioral and Brain Sciences. Before Searle, similar arguments had been presented by figures including Gottfried Wilhelm Leibniz (1714), Anatoly Dneprov (1961), Lawrence Davis (1974) and Ned Block (1978). Searle’s version has been widely discussed in the years since. The centerpiece of Searle’s argument is a thought experiment known as the Chinese room.
In the thought experiment, Searle imagines a person who does not understand Chinese isolated in a room with a book containing detailed instructions for manipulating Chinese symbols. When Chinese text is passed into the room, the person follows the book’s instructions to produce Chinese symbols that, to fluent Chinese speakers outside the room, appear to be appropriate responses. According to Searle, the person is just following syntactic rules without semantic comprehension, and neither the human nor the room as a whole understands Chinese. He contends that when computers execute programs, they are similarly just applying syntactic rules without any real understanding or thinking.
Personally, I don’t buy the Chinese room argument. I think you can have genuine semantic understanding even in the context of a wholly symbolic reality or experience. Indeed, I think our own semantic understandings are essentially that. That is, I think our semantic understandings can probably be reduced to symbols and are certainly mediated by them. To my mind our brains are obviously machines, thus machines can do what we can do. Do machines have to be brain-like in order to succeed? I doubt it. Both birds and aeroplanes can fly.
The Gettysburg Address is a famous speech that was delivered by Abraham Lincoln, the 16th U.S. president, following the Battle of Gettysburg during the American Civil War in 1863 (161 years ago). The speech has come to be viewed as one of the most famous, enduring, and historically significant speeches in American history. Peter Norvig did a hilarious send up of this famous speech as a series of powerpoint slides as an example of how terrible such slides can be: The Gettysburg Powerpoint Presentation.
Back in 2011 Peter Norvig and Sebastian Thrun taught an online course with over 100,000 students in attendance. Including me! Norvig spoke about the project in his 2012 TED Talk: The 100,000-student classroom.
I have a note here regarding fractionation, but I’m not sure why that was relevant? It must have come up in our discussion?
The welcome video for my YouTube channel is this one: Welcome to @InTheLabWithJayJay! An Electronics Video Blog.
You mentioned the concept of low-GI joy. As compared with, I suppose, hi-carb joy. I suppose this is what the Stoics were on about.
From Alan Watts:
You see, I’m not talking about a philosophy. I’m not talking about a rationalization, some sort of theory that somebody cooked up in order to explain the world and make it seem a tolerable place to live in. I’m talking about a rather whimsical, unpredictable experience that suddenly hits people and it includes this element of feeling the total harmoniousness of everything.
Check out Garys Economics. A former trader explains economics to the layperson.
Olivetti is the famous Italian company which made typewriters and computers back in the day. In this video they show you how everything is now abandoned and run down: The Downfall of Olivetti – Exploring an Abandoned Computer Factory. (Note: this made me think of the recent destruction at the Paragon in Katoomba.)
Trekulator: A Reproduction Of The 1977 Star Trek Themed Calculator
I have a new post on Hackaday: Trekulator: A Reproduction Of The 1977 Star Trek Themed Calculator.
Biasing Transistors With Current Sources
I have a new post on Hackaday: Biasing Transistors With Current Sources.
MPLAB PICkit 5
I am saving my pennies so I can buy the MPLAB PICkit 5 In-Circuit Debugger and Debugger Adapter Board.
Other things I am interested in but that are a bit beyond what I’m willing to pay for at this point in time include:
I am planning to install the MPLAB X IDE, I just haven’t got around to it yet. I will do that after I have purchased the PICkit 5 programmer.
Ten cent micro
I watched this fun video about how to use a ten cent microcontroller:
How To Easily Program The ATtiny85
This is a note for Future John. I found this no-nonsense video about how to program the ATtiny85 using an Arduino: How To Easily Program The Attiny85
Building A Custom Zynq-7000 SoC Development Board From The Ground Up
I have a new post on Hackaday: Building A Custom Zynq-7000 SoC Development Board From The Ground Up.
The presenter starts by designing the power system, then makes progress on power, improves the schematic, integrates DDR RAM, adds USB PHY, Ethernet PHY, and SD card, starts on HDMI, makes progress on layout, makes progress on routing, continues with routing, configures with Vivado and estimates costs, receives PCBs and components, starts the PCB assembly, adds power rail components, adds core components, connects power and does initial programming, makes an LED blink, gets the ARM APU working, troubleshoots FT2232H to JTAG, resolves FT2232H to JTAG issue, adds UART and DDR, gets HDMI working, installs PetaLinux, and at long last configures USB and Ethernet in PetaLinux.
See AMD Zynq 7000 SoCs for specs from AMD. The executive summary is that this SoC includes an ARM Cortex-A9 Based APU and an Artix-7 FPGA (or a Kintex-7 FPGA on higher models). We suppose this is an opportune time to mention that in case you missed it Xilinx was recently acquired by AMD which is why you see the AMD branding now.
Summarizing references from these videos, other videos include What your Differential Pairs Wish You Knew and How to Achieve Proper Grounding by [Rick Hartley]; books referenced include Printed Circuits Handbook 7ed and Signal and Power Integrity Simplified 3ed; courses referenced include Mixed-Signal Hardware Design with KiCad and Advanced Digital Hardware Design from [Philip Salmony]; and software used includes EasyEDA, Vivado, Vitis IDE, and Tera Term.
Mail Call #28: EEVblog BM036, Test Hook Clips, 4mm to 2mm Banana Adapter, a Book and a Movie
This post is part of my video blog and you can find more information about this video over here.
You can support this channel on Patreon: patreon.com/JohnElliotV
In this video we see what’s come in the mail!
- EEVblog BM036 AC/DC Clamp Meter
- 20CM High Efficiency Test Hook Clip Logic Analyzer Cable Gripper Probe Test Clamp Kit For Chips Pins Connecting Testing
- Gold Plated 2MM Small Male Banana Plug To 4MM Female Jack Connector Adapter
- Principles of Electronic Circuits 2nd Edition
- Colossus – The Forbin Project [Region B] [Blu-ray] – DVD – New
Also mentioned in this video:
Thanks very much for watching! And please remember to hit like and subscribe! :)
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Yum Cha USB 3.0 Powered 4-Port USB Hub![]() |
Let’s go shopping!

