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Category Archives: Chatter
Gromit-MPX
Gromit-MPX is an on-screen annotation tool that works with any Unix desktop environment under X11 as well as Wayland.
Arduino Keyboard library not working on Debian KDE
Man, I just spent quite a bit of time diagnosing this particular issue.
The problem was that my Symbol Keyboard stopped working. This is a USB keyboard I made from an Arduino Leonardo. The touch screen was working okay, but the keypresses weren’t being delivered over USB.
Long story short, the 7-port USB 3.0 hub attached to my workstation needed rebooting! I disconnected the power supply and disconnected the upstream USB cable to remove both sources of power, then when I reconnected everything my stuff started working again, including my symbol keyboard.
Lesson learned: if you’re debugging a USB device failure try plugging the device directly into the host to avoid any potential issues caused by your hub(s).
It was lucky I had a spare 104-key USB keyboard in the cupboard because I needed one while diagnosing this issue (the Windows box I was using only has a tenkeyless 87-key keyboard plugged into it but the Windows alt-key codes require use of the number pad).
The latest incarnation of my symbol keyboard looks like this:
Mail Call #23: Powerboards, Power Cords, Brushes, Tool Organizers, Components, and More!
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 take a look at what has arrived from Amazon and AliExpress:
- HPM Standard 6 Outlet Powerboard Black
- HPM Standard 4 Outlet Powerboard White
- Power Cord C20 to AU Socket Extension Cable UPS Unit Replaces IEC320-C20 3 pin Female converaion 3G*1.0mm 20CM Short Length for Studio Equipment
- 50PCS Inkjet Printhead Cleaning Foam For Epson Roland Mimaki Mutoh Cleaning Tool Printhead Cleaning
- 1PC Makeup Brushes Paint Brushes Holder Make Up Organizer Detachable 96 Hole Pencil Holder For Desk PensArt Painting Supplies
- 67 Holes Paintbrush Holder Stand Wooden Paint Brush Stand Desk Organizer Wall Mounted Makeup Brush Shelf For Painting Supplies
- Basic Starter Kit for ESP32 ESP-32S WIFI Development Board Project Learning Kit with Tutorials ESP32 kit with box
- USB Type A to Type A Adapter 180 Degree Up & Down Angled USB 3.0 Adapter A Male to Female Extension Converter 5Gbps Laptop PC
- 10/50Pcs Universal 502 Instant Super Glue Dropping Tube Nozzle Lengthened Needle Tube Bottle Cap Catheter Dropper Adhesive Tool
- Micro USB to Mini USB Type-C Adapter Female To Micro Usb Male Converter Connector Aluminum Alloy
- 50pcs 12mm Precision Tips Liquid Dispenser Syringe Needles Tips 304 14G -30G Gauge Tips Glue Dispensing
- Universal Phone Repair Tools Kit Disassembly Blades Pry Opening Tool Metal Crowbar Disassemble Kit Phone Spatula Hand Tools Set
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!
TEAC 19″ Television |
Let’s go shopping!
Silicone and Acetone
Check this out: Waterproof material with silicone and acetone.
Unboxing #26: Unboxing Metal and Plastic Yum Cha Spudgers | 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 we unbox two spudger sets which arrived recently from AliExpress:
If you’re looking for spudgers I have some other ones as well which you can read about over here: Equipment Category: Spudgers.
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 Magnetic Claw Pickup Tool notes |
Let’s go shopping!
Interlude #13: Assembling the 5-Layer Acrylic Pen Holder | 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 we assemble the acrylic pen holder I ordered from AliExpress: Acrylic Pen Holder Pen Holder Pencil Makeup Brush Storage Box Brush Storage Rack In Supermarket Stationery Store School Supplies.
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!
Logitech Brio USB Camera |
Let’s go shopping!
Unboxing #25: Unboxing the EEVblog BM2257 Multimeter | 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 we unbox the Brymen EEVblog BM2257 Digital Multimeter which arrived recently from my mate Dave Jones of EEVblog fame. Thanks Dave!
In the video I mention about the Multimeter Fuse Pack available at the EEVblog Store (but out of stock), but I don’t think that particular fuse pack has the fuses I need for the BM2257. I have asked about what fuses to get on the EEVblog Forum: Appropriate fuses for EEVblog BM2257 Multimeter.
The BM2257 came with Zinc–carbon batteries which I haven’t seen before. You learn something new every day!
There will be a demo video coming out soon to go with this unboxing video, just like I did for my Fluke 17B+ Digital Multimeter:
I am very happy to have my new BM2257. Thanks again Dave. <3
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 BM800 Condenser Microphone |
Let’s go shopping!
Mail Call #22: Glasses Care, Acrylic Pen Holder, Components, Tools and More! | In The Lab
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 take a look at what’s arrived from AliExpress and Amazon:
- Inside Distributed COM
- MR.SIGA Premium Microfiber Cleaning Cloths for Lens, Eyeglasses, Screens, Tablets, Glasses, 12 Pack, 6 x 7 inches (15 x 18 cm), Navy/Gray
- ZEISS Lens Wipes, 50 count, Pack of 50
- Acrylic Pen Holder Pen Holder Pencil Makeup Brush Storage Box Brush Storage Rack In Supermarket Stationery Store School Supplies (Color: 5 Layer)
- 15Pcs 7mm Cable Gland Connector Rubber Strain Relief Cord Boot Protector Cable Sleeve Hose for Power Tool Cellphone Charger
- 5Pcs 9/10/12mm Rubber Wire Protector Cable Sleeve Boot Cover For Angle Grinder Wire Connect Protection Electric Drill Cable (Color: 5pcs 9mm; 5pcs 10mm; 5pcs 12mm)
- DIY Project Starter Kit For Arduino UNO R3 Kit Electronic DIY Kit Electronic Component Set With Box 830 Tie-points Breadboard (Color: 1Set)
- Universal Phone Repair Tools Kit Disassembly Blades Pry Opening Tool Metal Crowbar Disassemble Kit Phone Spatula Hand Tools Set (Color: 3pcs)
- 5Sets WH148 15mm 3 Pin Linear Taper Rotary Potentiometer Resistor 1K 2K 5K 10K 20K 50K 100KΩ Ohm For Arduino With AD2 White Knob (Resistance: 5K Ohm)
- New Super USB 3.0 Standard A Type Male to Male cable 1m 30cm 60cm 100cm 150cm 300cm
- 1PK TZe Tape 6/9/12/18/24mm Colorful white tape Compatible brother tz Lable Printer H110 Label Maker tze231 tze221 tz131 TZE335 (Black on Flu. Yellow, 12mm; Black on White, 12mm)
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 Magnetic Claw Pickup Toolnotes |
Let’s go shopping!
Unboxing #24: PowerShield Defender 1600 UPS | 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 we unbox and install my two new PowerShield Defender 1600 UPS devices.
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!
| TEAC 19″ Television |
Let’s go shopping!