Category Archives: Internet

Electronics Project #27: Space Drop Handheld Game | Learning Electronics In The Lab With Jay Jay

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This post is part of my video blog and you can find more information about this video.

Silly Job Title: Current Curator. I am the Current Curator!

In this video we follow the instructions to build the Space Drop handheld computer game which you can buy in kit form from here: Space Drop Solder Kit.

The kit comes with the software preinstalled on the D1 Mini microcontroller, but in this video we replace the code with our own version of the code just to see if we could. And we could! Our code is here: Space_Drop.ino.

We use the METCAL PS-900 Soldering Station for soldering.

We use the Pro’sKit SS-331H Desoldering Pump to remove the OLED screen which I accidentally installed without the spacer.

We use the MUIN Solder Fume Extractor to clear the air.

We use the Bysameyee Head-Mounted Magnifier for magnification.

We use the Scotch Titanium Scissors to chop up the packaging for scrap-booking.

We use the Hakko CHP 3C-SA Precision Tweezers for holding solder off cuts.

We use the Plato Model 170 Wire Cutter to snip off component leads.

We use the Kaisi S-160 45x30cm Repair Mat as our workspace.

Thanks very much for watching! And please remember to hit like and subscribe! :)

p.s. today I added OLED to my spell check.

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!

DUTRIEUX 14pcs Hexagonal Socket SetThis is an image of the product.

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Old Book Teardown #24: Electronic and Radio Engineering (1955) | In The Lab With Jay Jay

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This post is part of my video blog and you can find more information about this video.

Silly Job Title: Ohm Oracle. I am the Ohm Oracle!

In this video we have a look inside Electronic and Radio Engineering 4ed from the Father of Silicon Valley, Frederick Terman.

We have previously covered the 3rd edition of this book, here: Old Book Teardown #8: Radio Engineering 3rd Edition (1947).

Thanks very much for watching! And please remember to hit like and subscribe! :)

p.s. today I added Terman to my spell check.

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!

Tenma 72-10505 Bench Power SupplyThis is an image of the product.notes

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The Leaky Faucet | Project 13/30 | Maxitronix 30in1 | Learning Electronics In The Lab With Jay Jay

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You can support this channel on Patreon: patreon.com/JohnElliotV

This post is part of my video blog and you can find more information about this video.

Silly Job Title: Maker of Videos. I am the Maker of Videos!

In this video we do the 13th project from the Maxitronix 30in1 Electronics Project Lab Kit: The Leaky Faucet.

Here are the timing measurements we took:

Capacitor Resistor Period
10 µF 470 kΩ 3.05, 3, 2.97, 3.03, 2.98
10 µF 100 kΩ 0.67, 0.6, 0.8
100 µF 100 kΩ 7.02, 7.02, 7.15
4.7 µF 100 kΩ 0.43, 0.35, 0.39
4.7 µF 470 kΩ 1.76, 1.5, 1.56

We use the Rigol MSO5074 Mixed Signal Oscilloscope to look for the oscillating signal.

We use the UNI-T UTi260B Thermal Imager to check the thermals (nothing interesting to report).

We use the Carpenter Mechanical Pencil to take our notes.

We use the Kaisi S-160 45x30cm Repair Mat as our workspace.

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 16MP USB CameraThis is an image of the product.

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Module Monday #10: HW-390 Soil Moisture Sensor Module | In The Lab With Jay Jay

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This post is part of my video blog and you can find more information about this video.

Silly Job Title: Sparky. I am Sparky!

Today is Module Monday and the module we’re looking at today is the HW-390 Soil Moisture Sensor Module. This is a capacitive sensor which is different to the two previous moisture sensors which were resistive.

The code for today’s demo is here: 2026-04-20-HW-390-Capacitive-Soil-Moisture.ino.

We use the Rigol MSO5074 Mixed Signal Oscilloscope to look for a waveform (there was none).

We use the EEVblog BM2257 Digital Multimeter to measure voltage and resistance.

We use the Kaisi S-160 45x30cm Repair Mat as our workspace.

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 4pcs 30mm Deep Hole PenThis is an image of the product.notes

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Mail Call #55: Tapo P110M Smart Plug, FNIRSI SG-002, USB-C Power and Cables | In The Lab

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This post is part of my video blog and you can find more information about this video.

Silly Job Title: Technical Director. I am the Technical Director!

In this video we take a look at what has arrived in the mail:

We use the Scotch Titanium Scissors to cut open some packaging.

We use the Kaisi S-160 45x30cm Repair Mat as our workspace.

Thanks very much for watching! And please remember to hit like and subscribe! :)

p.s. today I added TP-Link, AirPods, and USB-C to my spell check.

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!

ANENG AN-999S Bench MultimeterThis is an image of the product.notes

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New Book Teardown #9: Basic Circuit Analysis 2nd Edition (2011) | In The Lab With Jay Jay

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This post is part of my video blog and you can find more information about this video.

Silly Job Title: Operation Manager. I am the Operation Manager!

In this video we take a look at what’s inside Basic Circuit Analysis 2nd Edition.

Thanks very much for watching! And please remember to hit like and subscribe! :)

p.s. today I added Teardown to my spell check.

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!

HDmatters 4K HDMI USB 2.0 4-Port HDMI KVMThis is an image of the product.

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Just train tired

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Justin Sung’s D-F-U-Z method for Thought Action Defusion helps to decouple your productivity from your motivation:

  1. Distinguish (between feelings, thoughts, and actions)
  2. Fake (pretend you’re not feeling tired or lazy, even if you are)
  3. Uptime (increasingly spend longer and longer in the thought-action defusion state)
  4. Zone (create a distraction-free environment you can be focused in)