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Category Archives: Video
Making A LEGO Vehicle Which Can Cross Large Gaps
I have a new post on Hackaday: Making A LEGO Vehicle Which Can Cross Large Gaps.
Life Changing Tips for Wicking Solder
Here’s a great video from nanofix about how to use solder wick: Life Changing Tips for Wicking Solder. He mentions a bunch of products some of which I am planning to get!
A Love Letter To Embedded Systems By V. Hunter Adams
I have a new post on Hackaday: A Love Letter To Embedded Systems By V. Hunter Adams.
New Supermaterial: As Strong As Steel And As Light As Styrofoam
I have a new post on Hackaday: New Supermaterial: As Strong As Steel And As Light As Styrofoam.
Making A Backyard Observatory Complete With Retractable Roof
I have a new post on Hackaday: Making A Backyard Observatory Complete With Retractable Roof.
Electronics Project #12: Making an LED Heart | Learning Electronics 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: Bit Distinguisher.
In this video we build an LED heart. It is beautiful and green.
The schematic and instructions are these:
As we discover in the video this circuit is an astable multivibrator made with two op-amps provided by an LM358.
I mention that my copy of Learning the Art of Electronics: A Hands-On Lab Course 2nd Edition has arrived. Very happy about that! I will be getting on with the notes for these very soon.
I mention about the two Logitech BRIOs that I have installed as my “maths cam”. This will enable me to record my maths videos, which I am planning to start soon. I will be working through my old high school mathematics textbooks starting with Signpost 7.
I mentioned my Spivak calculus book, and my Stewart calculus book too, but I can’t seem to find my copy of that at Amazon. If you’re interested in such things check out Calculus by Spivak from Learning as a hobby.
We use the METCAL PS-900 Soldering Station for soldering.
We use the Peak Electronic Design Atlas DCA75 Pro Semiconductor Analyzer to check our NPN transistor.
We use the Peak Electronic Design Atlas LCR45 LCR Meter to check our resistors and capacitor.
We use the Riden RD6006 Bench Power Supply to provide 5V for testing.
We use the Yizhan Digital Microscope to have a closer look at a few things.
We use the Hakko CHP 3C-SA Precision Tweezers for working with small parts.
I mention about these bins which I have purchased recently. They are cheap and a good size but my experience is that the material is very brittle and prone to breaking.
And love to Nirvana for Heart-Shaped Box. 💕
Also, here’s the full list of my ESP32 boards:
- WeAct ESP32 ESP-32 ESP32C3 ESP32-C3FH4 Development Board Wireless WiFi Bluetooth-compatible Module Micropython
- ESP32-CAM-MB WiFi Module Serial to WiFi ESP32 CAM Development Board 5V Bluetooth with OV2640 Camera DIY
- ESP32-C3 MINI Development Board ESP32 SuperMini Development Board ESP32-C3 Development Board WiFi Bluetooth Expansion Board
- ESP32-C3 SuperMini WiFi Bluetooth-Compatible Board ESP32 C3 SuperMini Development Board IOT Board for Arduino
- ESP32-C3 OLED development board with 0.42 inch OLED module ceramic antenna ESP32 supermini development board wifi Bluetooth
- ESP32 Development Board TYPE-C/MICRO USB CP2102 WiFi+Bluetooth Dual Core ESP32-DevKitC-32 ESP-WROOM-32 Expansion Board 38PINS
- ESP-12E WeMos D1 UNO R3 CH340 CH340G WiFi Development Board Based ESP8266 Shield Smart Electronic PCB For Arduino Compatible IDE
- ESP32 Development Board TYPE-C/MICRO USB CP2102 WiFi+Bluetooth Dual Core ESP32-DevKitC-32 ESP-WROOM-32 Expansion Board 38PINS
- WeAct ESP32-C6 Development Board ESP32C6 Minimum System Board ESP32 Core Board RISC-V Espressif IoT WiFi6 Bluetooth Zigbee
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!
Wozniak Solder Lugs notes |
Let’s go shopping!
Channel News #8: Update Regarding Upcoming Projects and Videos | 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: Capacitor Captain.
In this video I make excuses for why you haven’t had a video from me for two weeks. Excuses, excuses.
It is still my ambition to release three videos per week, on Tuesday, Thursday, and Saturday.
As I mention in the video I have been working away on the Learning the Art of Electronics project and making notes for all five of the referenced books but I still have a heap more work to do. Further, I’ve been working through the first edition of Learning the Art of Electronics because my second edition hasn’t arrived yet. So today I bit the bullet and canceled my order of the second edition from Amazon AU (I’ve been waiting since January) and placed a new order with Amazon US so my second edition should now be arriving by May 24, later this week.
I have ordered some bits and pieces for my Logitech BRIO web cam including this stand, so I should be able to start making maths videos on my channel soon. But it will be very basic high school maths. If you want more serious maths I would be happy to recommend my friend who makes advanced maths videos on his channel Learning as a hobby.
Speaking of my mate on the Learning as a hobby channel he recently scored a copy of the CDROM that comes with Principles of Electronic Circuits 2ed and is making preparations to send me a copy (either as an ISO or in the snail mail), so standby for more on that. This is a super exciting development because I had concluded that finding a copy of this CDROM was going to be impossible, but here it is!
The long projects that I’m working on which are presently brewing include:
- Silicon Chip and Jaycar Mini Project JMP003
- Demo of EEVblog BM2257 multimeter
- Old book teardown of Electric Circuits
- Project #1 from Maxitronix 30in1
- Lab #1 from Learning the Art of Electronics
I have made a start on all of the above but it’s going to take me some time to finish them all. In the mean time I am going to try to get some smaller projects done so that I can hit my target of three videos per week.
And that brings you up to date with news from the channel.
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 395nm UV Lamp notes |
Let’s go shopping!
ORBTrace mini and instrumenting embedded applications
Today I learned about the ORBTrace mini. Gotta get me a few of those! There’s a video explaining the related software, Orbuculum, over here (but it requires you signup for a free account and validate your email address to watch).
Statistician Answers Stats Questions From Twitter | Tech Support | WIRED
This was a good overview of what’s possible with statistics: Statistician Answers Stats Questions From Twitter | Tech Support | WIRED.
But I’m pretty sure that at t=11:23 he gets it wrong. The probability that three people in a family have the same birthday isn’t 1 * 1/365 * 1/365. but rather it depends on the number of people in the family (starting, I guess, at some epoch). This is known as the Birthday paradox.
To be clear: they’re not asking what is the probability of three people being born on January 10. They asked what are the odds of three people from an unspecified family size being born on the same day (could be any day of the year).