I got some new component drawers and some new pegboard hooks and I installed them in my pegboard:
New component drawers for pegboard
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Category Archives: Hardware
High-Water Indicator | Project 16/20 | Maxitronix 20in1 | 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 do the 16th project from the Maxitronix Sensor Robot 20 (20in1) Electronics Project Lab Kit: High-Water Indicator.
After we build the circuit we dump the sensor in a glass of water which causes the alarm to trigger. To avoid the obnoxious noise we put an LED in place of the buzzer.
Please be aware: while talking about this circuit I said that the astable multivibrator “flip flops” between states. And that’s kind of true in one sense, but I should be clear than an astable multivibrator is not a “flip flop” circuit. A flip flop circuit is a different type of circuit known as a bistable multivibrator, which is a different kind of thing. In this experiment we use an astable multivibrator to generate a 1.62 kHz square wave which provides our tone, we do not use a flip flop or bistable multivibrator circuit.
We use the Rigol MSO5074 Mixed Signal Oscilloscope to measure and visualize the 1.62 kHz square wave which generates our tone.
We use the UNI-T UTi260B Thermal Imager to investigate the circuit thermals. We see that the 1K resistors in the astable multivibrator generate the most heat.
We use the Fluke 17B+ Digital Multimeter to measure the voltage across Q5. Between about 500 mV and 750 mV is enough voltage to enable the output.
We use the Riden RD6006 Bench Power Supply to deliver the 9V DC required for the project. We use the current measurement from the power supply to see that when the LED is active the circuit draws about 23 mA compared to about 11 mA when the LED is not active.
We use the Horusdy Soldering Station with Hot Air Gun to dry the sensor after it got wet.
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!
Ausum 25 In 1 Precision Screwdriver Set notes |
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AMBA specification
Today I learned of the Advanced Microcontroller Bus Architecture. There is detailed information to be found on the ARM website: AMBA Specifications.
Debugging
I’ve been reading Debugging: The 9 Indispensable Rules for Finding Even the Most Elusive Software and Hardware Problems. My mate @indigo suggested I read David A. Wheeler’s summary of it over here: David A. Wheeler’s Review of Debugging by David J. Agans. I know David A. Wheeler from his work on sloccount.
Unboxing #22: ASUS ROG Rapture GT-AX6000 WiFi Router | 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 my new ASUS ROG Rapture GT-AX6000 WiFi Router.
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 Blue Spudgers |
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Demo #5: Peak Electronic Design Atlas LCR45 – LCR Component Meter with Impedance Measurement
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 my new Peak Electronic Design Atlas LCR45 LCR Meter.
If you’re interested I have other equipment from Peak Electronic Design.
Over on the EEVblog forum I ask What’s special about the frequency 14.9254 kHz? The answer seems to be that this is 1/67th of 1 MHz, which is probably as precise as the microcontroller they’re using can go.
You can learn more about my ALKOY Capacitor Discharge Pen.
There are accessories available for the LCR45. Stuff I am planning to get includes:
- CRC01M – LCR Croc Clip set with 2mm sockets
- SMD03M – SMD Tweezers for LCR/ESR with 2mm sockets
- LCRLHP2 – Replacement LCR Hook Probes
- ENP90 – ESR/LCR Needle Probe set with 2mm sockets
- PCA23 – Peak Component Adapter for SOT-23
- 3DPAS – 3D Printed Peak Atlas Stand
I would get the LX30 – Extension Cable for LCR40/45 but it doesn’t appear to be in stock.
There are cases available but I am not planning to get any of those:
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 |
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Glass Organ | Project 15/20 | 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 we do the 15th project from the Maxitronix Sensor Robot 20 (20in1) Electronics Project Lab Kit: Glass Organ.
We had some trouble getting this circuit to work. It turned out that the instructions omitted one necessary wire. After we added that the circuit worked.
The salty water and the clean water didn’t have hugely different effects. It was hard to get a resistance reading because the resistances seemed to just continually increase. In the end I didn’t really understand that.
The products I purchase from AliExpress in the video are these:
- 5Sets WH148 15mm 3 Pin Linear Taper Rotary Potentiometer Resistor 1K 2K 5K 10K 20K 50K 100KΩ Ohm For Arduino With AD2 White Knob
- DIY Project Starter Kit For Arduino UNO R3 Kit Electronic DIY Kit Electronic Component Set With Box 830 Tie-points Breadboard
We used the Rigol MSO5074 Mixed Signal Oscilloscope to inspect the output of the astable multivibrator.
We used the METCAL PS-900 Soldering Station to solder some jumpers onto a 10K potentiometer which we use to alter the frequency of the astable multivibrator.
We used the UNI-T UTi260B Thermal Imager to inspect the heat profile of the circuit. We see the resistors in the astable multivibrator get warm, along with other components.
We used the Fluke 17B+ Digital Multimeter to continuity test our point to point links, to test various resistances, to check for capacitance (there was none), and to measure the current draw. It was interesting to see the current draw increase with frequency.
We used the Riden RD6006 Bench Power Supply to provide 9V for the circuit. The RD6006 also reported current draw.
We used the Horusdy Soldering Station with Hot Air Gun. We used the hot air gun to shrink the heat shrink we used on the potentiometer jumpers.
We used the Brother P-Touch D210 Label Maker to label our salt jar.
The Goo & Adhesive Remover product I recommend is Goo Gone.
The cheap but excellent wire cutters I mention are these. I got a five pack for ten bucks.
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!
Fluke 17B+ Digital Multimeter |
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Mail Call #17: Peak Atlas SCR100/ZEN50, DIP Switches, USB, Components, Third Hand 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 in the mail from element14, eBay, AliExpress, and Amazon.
- Peak Electronic Design Atlas SCR100 Triac And Thyristor Analyzer
- Peak Electronic Design Atlas ZEN50 Zener Diode Analyzer
- 10PCS Slide Type Switch Module 1 ~ 12 Bit 2.54mm Position Way DIP Blue Pitch Toggle Switch Blue Snap Switch For PCB 8PIN 6PIN
- USB Connector 2.0/3.0 90 Degree Vertical Left Right Up Down Angled USB Type A Male To Female M/F Converter Adapter Black/Blue
- 50pcs BT169D BT169 TO-92 Triacs Thyristor SCR 400V 9A 3-Pin SPT new original
- 10pcs Z0103MN Z0107MN Z0109MN 07M 03M 09M Z7M Z3M Z9M Triac thyristor new original
- Octopus Soldering Helping Hands Bench Vise Table Clamp with Flexible Arms Solder Iron Holder PCB Repair for TS101 TS100 PINE64
- Upto 500x 1g Silica Gel Packets Moisture Absorber Desiccant Reusable Food Grade
- UGREEN USB C Cable USB Type C Cable Fast Charging Nylon Braided Cord Compatible with iPhone 16 15, Galaxy S24 S23 S22 Ultra, Pixel, LG, Motorola Moto, Nokia, LG, Switch, Android Auto(3M) (WARNING: this is a USB2 cable. Boo!)
- 13 in 1 DC 4.5-50V 0-12A Multi-function Digital Display DC Voltage Ammeter Power Meter Type-c Cell Phone Charging PD3.1 Tester
- 10Pcs DIY Toggle Switch ON-OFF-ON 3Pin 3 Position Latching MTS-103 AC 125V/6A 250V/3A Power Button Switch Car
- 1 Pcs Reusable Whiteboard Notebook Set With Whiteboard Pen Erasing Cloth Leather Memo Pad Weekly Planner Portable Stylish Office
- 13pcs Aluminum Alloy Carving Knife Tool Set – Perfect For Paper-cut, Handcraft & Model Making!
- 600pcs/set 30 Kinds 1/4W Resistance 1% Metal Film Resistor Pack Assorted Kit 1K 10K 100K 220ohm 1M Resistors 300pcs/set
- S2 Precision Screwdriver Set for Mobile Phones,Notebooks,and Computers-Perfect for Small Maintenance and Disassembl
- 830Pcs/Box DIY Project Starter Kit For Arduino UNO R3 Kit Electronic DIY Kit Electronic Component Set With Tie-points Breadboard
- ANENG A3005 Digital Multimeter Pen Type 4000 Counts Professional Meter Non-Contact Auto AC/DC Voltage Ohm Diode Tester For Tool
- Precision Disassembly Screwdriver Kit For Mobile Phones, Laptops, And Tablets, For Maintenance, And Cleaning
While I was trying to figure out how the rubber/bolts work on my third hand I found this video: Octopus Hand supports Soldering for only 5$ – Turtle Review. This person was confused like me.
That glue we tested was this stuff: 15ML 25ML 50ML 110ML B-7000 Clear Contact Phone Repair Adhesive Universal Glass Plastic DIY Glue B7000 With Precision Applicator.
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 Macropad 3-Key Mechanical Keyboard |
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Square mesh holders installed
I’m waiting for some more of these to arrive: Office Desk Pen Pencil Pot Ruler Scissor Cup Mesh Organize Container.
While I wait you can see in the bottom photo the bunch of tools without a home. In the pictures below I have circled in red the four mesh holders I have recently installed. They’re black on black so hard to see, sorry about that.
The two on the left are clipped on with zip ties. The other two are screwed in, one screwed into the second drawer and the other to some load bearing dowel I also installed today.
I’m a bit paranoid about the shelf my oscilloscope is installed in will come away from the wall, so I have buttressed it with a dowel I had them cut to size for me today at the shop (307mm, exactly).
Demo #4: ANENG A3005 4000 Count Pen Type Handheld 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 we demo the ANENG A3005 Pen Type Handheld Multimeter. This pen-type multimeter can do voltage, resistance, continuity, and diode testing, among other functions. It’s a 4000 count device, meaning it can display about three and a half significant digits, for instance values such as 3,999 or 3.999 or 0.001.
If you’re interested you can check out all of my equipment from ANENG. They make good stuff! Of particular note is my ANENG AN-999S Bench Multimeter and my ANENG BT189 Battery Tester.
If you’re interested in any of this tech you can find it at AliExpress:
- ANENG AN-999S Desktop Voice Multimeter Digital 19999 Counts Professional Bluetooth Tester True RMS AC/DC Voltmeter Current Tools
- ANENG A3005 Digital Multimeter Pen Type 4000 Counts Professional Meter Non-Contact Auto AC/DC Voltage Ohm Diode Tester For Tool
- ANENG BT189 Button Cell Battery Tester 9V N D C AA AAA Universal Household LCD Display Battery Tester Power Bank Detectors Tools
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!
Plato Model 170 Wire Cutter notes |
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