Mum is roasting a chicken and my Air Quality Meter started alarming. The oven in the kitchen is smoking too much! This thing is super sensitive, it’s great, I’m glad I got it! The other day while I was soldering with the window closed it started alarming too. It’s good to have something reminding you about air quality.
Category Archives: Asset
Mail Call #12: Latest Loot from AliExpress | 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 take a quick look at what has arrived lately from AliExpress:
- STONEGO 50PCS/Bag Practical Hinged Plastic Screw Fold Snap Protective Cap Button Nuts Cover Bolts Protect Furniture Decor (Black, Gray, White)
- Black Electric Nose Hair Trimmer Ear and Nose Hair Trimmer Professional Painless Nose Hair Trimmer For MenAnd Women
- SX DT3 Data Cable Detection Board Type-C Micro USB C Cable Tester Short Circuit On Off Switching Diagnose Tool for iOS Android
- Best Price USB 2.0 Type A Female To Type B Male Printer Scanner Adapter Converter Connector Nickle-Plated Adapter Electronics
- 5Pcs USB Type A Standard Port Female Solder Jacks Connector PCB Socket USB-A USB-B type
- 10Pcs Mini USB Type B 5-Pin Female Socket Right Angle DIP Jack Connector Plug-in
- M2 M2.5 M3 M4 Brass Standoffs Screws Nut Kit 48-320 Hex Pieces Male Female Motherboard Spacer Laptop Screw for PCB Circuit Board
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!
Maxitronix Electronic Metal Detector Kit Electronics Project notes |
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Seven things people learn too late in life
I thought this was good: Seven things people learn too late in life.
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![]() |
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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 |
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JMP001 Symbol Keyboard now on Debian Linux
Thanks to my mate @edk from IRC I learned of the compose key. I configured my KDE Plasma desktop to use Right Alt as my compose key in System Settings -> Input Devices -> Keyboard -> Advanced. Then I updated the firmware and deployed a .XCompose file that I generated, and now I have a symbol keyboard on my Debian Linux workstation!
New electrical wiring
My new 10-way powerboard arrived today and I wired it into the booth along with a PowerShield Defender 1200 UPS battery which I had spare.
Then I had two spare powerboards so I installed one of them (with an RCD Safety Switch) behind the bench. You can see it in the photo below. The thing you can see plugged in on the top is my Watt Meter, it reports on current draw and power usage.
I am pretty happy with today’s handiwork.
Mail Call #9: Tools and Equipment from Jaycar, Amazon, and 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 go through what arrived in the mail recently.
- Duinotech Arduino Compatible 8 x 5 RGB LED Matrix Shield
- Usb Embedded Hosts: The Developer’s Guide
- SERIAL PORT COMPLETE SECOND EDN: COM Ports, USB Virtual COM Ports, and Ports for Embedded Systems
- USB Mass Storage: Designing and Programming Devices and Embedded Hosts
- Rossler Soho 4 Drawer Filing Storage Box – Black
- PD100W USB 3.2 20Gbps ThunderBolt 3 Type C to Type C Cable 8K@60Hz USB-C Cable Cord For iPhone 15 Pro Max MacBook Samsung 2/3m (1m, 1.5m, 3m)
- 40gbps Pd 100w usb c winkel 90 grad adapter thunderbolt 3 4 usb4 typ c Männlich/Weibliche auf buchse konverter 8k @ 60hz (CF-CF-40GB-ST)
- 1-10pcs/ Leonardo R3 Development Board With 30cm USB Cable ATMEGA32U4 For Arduino (Leonardo R3 10pcs)
- 10PCS MEGA2560 MEGA 2560 R3 ATmega2560-16AU CH340G AVR USB Board Development Board MEGA2560 for Arduino (Square port interfac)
- Wowstick wowpad Magnetic Screwpad Screw Postion Memory Plate Mat For kit 1FS Electric 1P+ 1F+ Plus magnetic sticker
- CD4017 Colorful Voice Control Rotating LED Light Kit Electronic Manufacturing DIY Kit Spare Parts Student Laboratory
- ANENG BT189 Button Cell Battery Tester 9V N D C AA AAA Universal Household LCD Display Battery Tester Power Bank Detectors Tools (Color: BT189 Black(box))
- 1X 8 Ohm 8R 0.5W Mini Ultra-thin Horn Speaker Diameter 20mm 23mm 28mm 30mm 36mm 40mm 50mm 57mm Loudspeaker W/ P2.0 Termina Wire (20mm, 30mm, 40mm) [I believe these have JST XH2.0 connections]
- 1.3″ OLED Display Module White/Blue Color Drive Chip SH1106 128X64 1.3 inch OLED LCD LED IIC I2C Communicate For Arduino (white, blue)
- I2C OLED Display Module 0.91 Inch I2C SSD1306 OLED Display Module White / BLUE I2C OLED Screen Driver DC 3.3V~5V for Arduino (white, blue)
- 88-108MHz DIY Kit FM Radio Transmitter and Receiver Module Frequency Modulation Stereo Receiving PCB Circuit Board (FM Transmitter Kit, FM Receiver Kit)
- 5V DC-AC Pure Sine Wave Inverter SPWM Driver Board EGS002 12Mhz Crystal Oscillator EG8010 + IR2113 Driving Module LCD
- Diy Electronic Kit LED Gyro DIY Welding Kit Rotating Lantern Inline Components Diy Electronic Sodering Project(without Battery)
- AHT10 High Precision Digital Temperature and Humidity Sensor Measurement Module I2C Communication Replace DHT11 SHT20 AM2302
- 10PCS WH148 B1K B10K B50K B100K B1M 3Pin Linear Potentiometer 15mm Shaft With Nuts And Washers (50K Ohm)
- Cleqee P1532 10pcs Dupont Male to Stackable Banana Plug Silicone Jumper Cable 26AWG Wire For Breadboard Electronic DIY
- 120PCS 6 Color Tin-Plated Breadboard PCB Solder Cable 24AWG / 26AWG Jumper Wire DIY Kit High-Quality Electronic Wires (24AWG-120pcs)
- 1PCS Double Ended High Voltage Power Test Connecting Wire 4mm Banana Plug Test Wire Silicone 1M Banana Jack for Instrument (Red, Black)
- TZT USB Host Shield 2.0 for Arduino UNO MEGA ADK Compatible for Android ADK DIY Electronic Module Board
- SX DT3 Data Cable Detection Board Type-C Micro USB C Cable Tester Short Circuit On Off Switching Diagnose Tool for iOS Android
- New 3.5-inch TFT Color Screen LCD Display Module 320X480 with High-Definition Support for Direct Insertion into Mega2560
- Voltage Regulator Module, Constant Voltage and Current LCD Digital Display, Voltmeter, Ammeter, Adjustable Step-down and Step-up
- 5V Electronic Hourglass DIY Kit Funny Electric Production Kits Precise With LED Lamps Double Layer PCB Board 84*40mm
- BD243 Mini Tesla Coil Kit Magic Props DIY Parts Empty Lights Technology Diy Electronics BD243C
- 1-10PCS/ high quality UNO R3 (CH340G) MEGA328P for Arduino UNO R3 + USB CABLE ATMEGA328P-AU Development board 16Mhz TYPE-C (UNO R3 10PCS)
- 1PC 2.0mm 3.5mm 1.5M Welding Wires Desoldering Braid Solder Remover Wick Wire Repair Tool (3mm 3m)
- DC Electric Wire 5m/10m 2 Pin Single Strip Extension Cable 24AWG Antiflaming Cord Connector For Low Power LED Small Sppliance 3C (3x 5m; 2x 10m)
- 15Pcs/Set Sandpaper 400 600 3000 800 1000 1200 1500 2000 2500 Grit Sand Paper Water/Dry Sanding Paper Abrasive Tools
- Stainless Steel String Ruler String Action Gauge Ruler for Guitar Bass Silver
- (10pcs)100% New IRFZ44N IRFZ44 Power MOSFET TO-220 Transistors (IRFZ44N)
- 1 Pack Static IC Puller – Efficient Mechanical Keyboard Switch Remover Tool with Anti-Static Protection – Easy to Use, Durable,
- 1/3/5m Nano Tape Double-Sided Adhesive Tape Traceless Waterproof Tape For Bathroom Kitchen Sink Tap Gel Sticker (5m, 1mm, 20mm)
- High Temperature Resistance Aluminum Foil Tape Kitchen Pipe Repair Tape Adhesive Sealing Foil Heat Insulation Leak Proof Tape (3cm, 20m, silvery)
- 2pcs/set 2.8mm Carpenter Mechanical Pencil with Sharpener for Woodworking Construction Long Head Carpenter Pencil Stationery (Black set- B)
- Damaged Screw Extractor Broken Bolt Stripped Set Double Head Tool Easy Out Removal Disassemble Stud Slip Teeth Demolish Remover (Screw Extractor B)
- 50PCS/Box LM358P LM393P NE555P DIP Integrated Circuits electronic kit LM358 LM393 NE555 (LM358P, LM393P, NE555P)
- 10-Pcs Square Snap Safety Hooks: Sturdy Anti-Drop Hanging with Buckles for Bonsai (Color: 10pcs)
- Universal 1 PCS Magnetic Ring Alloy Magnetic Ring Screwdriver Bits Anti-corrosion Strong Magnetizer Drill Bit Magnetic Ring (3pcs Colorful)
- Original Chip TPA3116 D2 XH-M543 12V 24V 120W*2 Dual Channel Digital Power Audio Amplifier Board 120W X2 TPA3116D2 (Color: TPA3116 Amplifier)
- 9 In 1 Air Quality Monitor CO2 Meter CO TVOC HCHO PM2.5 PM1.0 PM10 Temperature And Humidity Measurement Carbon Dioxide Detector (Color: 9 in 1)
- Lead-free Tin Silver Copper SAC305 Solder Sheet Solder Tape Solder Foil Sn96.5Ag3.0Cu0.5 Solder Tape (Type 5: 50*0.3mm/meter)
- Plush Microfiber Tire Rim Wheel Hub Cleaning Brush Car Beauty Car Wash Brush Maintenance Tools Cleaning Supplies (Color: BLUE)
- Waveshare 2.8inch TFT Touch Shield LCD Resistive touch screen 320*240 resolution compatible with Arduino/Leonardo/NUCLEO
- YS-AP50L 50W+50W Mini Digital Stereo Amplifier 50WX2 Speaker Power Amplifier Board Module Bluetooth-compatible 5.0 (Color: YS-AP50L)
- 2.4 Inch LCD Screen Retro Video Game Console Built-in 400 In Handheld Portable Pocket Mini Game Console Christmas Gift Christmas (Color: Red)
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 Multifunction Hook Tools![]() |
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Electronics projects
I have organized the various electronics projects which will be coming up on @InTheLabWithJayJay.
Demo #1: How to Use All the Features of the Fluke 17B+ Digital Multimeter | 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 take a look at how to use all of the features of my new Fluke 17B+ Digital Multimeter.
This is the inaugural demo video. We now do an ‘unboxing’ and a ‘demo’ separately. In the demo videos we try to take a close look at each feature of a product. Whereas with the unboxing we just make a record of the unboxing experience and take a cursory look at a few features.
If you’re interested in the Fluke 17B+ then in addition to watching this demonstration video you might also like to see the unboxing: Unboxing #14: Unboxing of Fluke 17B+ Multimeter | Learning Electronics In The Lab With Jay Jay.
The slides for this video are here: https://www.jj5.net/fluke-17b-plus/
In the video we cover:
- high current fuse test
- low current fuse test
- AC voltage measurement
- DC voltage measurement
- DC millivolts measurement
- AC current measurement
- DC current measurement (including milliamps and microamps)
- continuity testing
- diode testing (with forward bias measurement)
- resistance measurement
- capacitance measurement
- temperature measurement
- frequency measurement (10 Hz to 400 kHz)
- duty cycle measurement (of regular sine wave)
- relative measurement feature
- measurement hold feature
- backlight usage
- min/max measurement
We were lead astray by the slide for the current test which indicates the wrong terminal for the current measurement! I got these slides from Fluke in the 15B/17B/18B | Quick reference guide on the Manuals+resources tab on their documentation for the Fluke 17B+ Digital Multimeter. So it is pretty disappointing that the official Fluke documentation led me astray like that! But we figured it out in the end so all is well that ends well.
Errata: at around the 24 minute mark I try to introduce a load across my 9 V AC input voltage but I don’t correctly wire it in. So when I think I’m testing with a load attached there is in fact no load attached.
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 Long Handle Wire Brush notes |
Let’s go shopping!




