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Category Archives: Learning
Lifting SMD components from PCBs
Over on Hackaday Give Your SMD Components A Lift they linked to How To Lift SMD Pins Safely – IC Pin Lifting / Soldering by Mr SolderFix.
Fast website
There are some tips on making a website fast in this video: How is this Website so fast!?
Burglar Alarm | Project 11/20 | Maxitronix 20in1 | 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
In this video I do the 11th project from the Maxitronix 20in1 (the Sensor Robot 20): Burglar Alarm.
This project uses the reed switch to trigger a bistable multivibrator that controls an alarm. The bistable multivibrator can be reset with the key. An astable multivibrator is used to generate the tone for the audible alarm.
In this project we get some more experience with transistors and how they can be used in various types of multivibrator circuit. Under the thermal camera we can see some of the transistors warming up as they conduct electricity. With the oscilloscope we can see the periodic waveform used to generate the alarm tone.
Note: while I was making this video I needed to make some banana plug to hook clip cables (so that I could test the reed switch). I made a video of my making those cables which you can see here: Electronics Project #9: Making Banana Plug to Hook Clip Cables | In The Lab With Jay Jay.
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 KT-908 Digital Thermometer |
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Jazz Piano
Seven things people learn too late in life
I thought this was good: Seven things people learn too late in life.
Most Important Skills for Electrical Engineering
Today I watched Most Important Skills for Electrical Engineering.
Stuff I need to learn includes:
He listed some important soft skills which included:
- Critical thinking
- Problem solving
- Communication
- Opportunity detection
- Tenacity/high-pain-tolerance
Quake ported to Arduino Nano Matter and Sparkfun Thing Plus Matter Boards
Today I found Quake ported to Arduino Nano Matter and Sparkfun Thing Plus Matter Boards via this article from Hackaday: Quake In 276 KB Of RAM.
The code is on GitHub and there’s a YouTube video with a high-level explanation.
Demo #2: Resistor Box Banana Plug Modding and Demo | 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
In this video I mod a pair of resistor boxes by installing banana plug terminals in place of the lug terminals they came with and then I give a quick demo of them.
In the demo we connect them in both series and parallel and then measure their resistance with my Fluke multimeter.
I mention this video from Dave Jones on the EEVblog: EEVblog #1020 – Is A $7 LCR / Component Tester Any Good? which is where I found out about the RS-201W resistor box which he has. I searched on eBay for RS-201W but what I found for over US$1,000 (inc shipping) was way too expensive: IET Labs RS-201W Wide Range Precision Resistance Substituter.
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 11 in 1 USB-C Hub USB Hub |
Let’s go shopping!
Mail Call #10: Thanks Craig! Also loot from AliExpress | 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
In this video I receive Engineer’s Mini Notebook Volume II – Science and Communication Circuits & Projects all the way from the USA from my friend (and mentor (and reader (and viewer (and patron (and Lisp hacker))))) Craig. Thanks Craig! <3
I mention that the October 2024 edition of Silicon Chip magazine is out.
I mention that I recently got my symbol keyboard working on Linux! Pretty happy about that! These are the extra keys that I have at my workstation now: ° ± § λ Δ Σ Π Ω ε µ π θ
I also get a bunch of stuff from AliExpress, including:
- MECHANIC Hard Brush Bristle/Steel Brush x3
- Promotion For arduino Nano 3.0 Atmega328 Controller Compatible Board WAVGAT Module PCB Development Board without USB V3.0 (Color: Expansion Board) x5
- Mini / Type-C / Micro USB Nano 3.0 With the bootloader compatible Nano controller for arduino CH340 USB driver 16Mhz ATMEGA328P (MICRO USB 5pcs)
- Mini / Type-C / Micro USB Nano 3.0 With the bootloader compatible Nano controller for arduino CH340 USB driver 16Mhz ATMEGA328P (MINI USB 5pcs)
- Mini / Type-C / Micro USB Nano 3.0 With the bootloader compatible Nano controller for arduino CH340 USB driver 16Mhz ATMEGA328P (TYPE-C USB 5pcs)
- 10/5/2 Pairs Small Mini JST 1.25mm PH2.0 XH2.54 2 Pin Male Female Plug Jack Connector Cable JST 1.25/2.0/2.54 2P Electronic Wire (JST 2.0MM 20CM, 10Pair) x3
- 5Sets Mini Small Micro JST 2.0mm PH2.0 Male Female Connector 2/3/4/5/6/7/8/9/10-Pin Plug With terminal Wires Cable Socket 26AWG (Length100mm, 5 Sets 2P) x5
- 10Pcs/lot Ceramics Fuses DMM-B-11A DMM-11AR DMM 11A 10x38mm 1000V 20kA Fast-Acting multimeter fuse
- 10 Pcs/lot Ceramics Fuses DMM-B-44/100 DMM-44/100-R DMM-44/100 10x35mm 1000V 0.44A 440mA 10kA Fast-Acting multimeter fuse
And yes, despite confusion, I did get three lots of two different kinds of hard brushes, and yes, I did end up saying the wrong thing in the video! Can’t take me anywhere.
Oh, and as I mention in the video I am from a beautiful part of the world known as the Blue Mountains. It’s pretty hot here today!
In the end my collection of Arduino boards includes:
- Arduino Nano (Wikipedia)
- Arduino Uno Rev3 (Wikipedia)
- Arduino Leonardo with Headers (Wikipedia)
- Arduino Mega 2560 Rev3 (Wikipedia)
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!