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

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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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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: 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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Electronics Project #26: More Banana Jack to Female DuPont Cables | 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: Craig Entertainer. I am the Craig Entertainer!

In this video we make some banana jack to female DuPont cables for connecting various things such as multimeters and power supplies to circuit boards using pin header.

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

We use the AiXun H314 Hot Air Gun for heat shrinking.

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

We use the EEVblog BM2257 Digital Multimeter to test our cables.

We use the Hakko CHP 3C-SA Precision Tweezers for tweezering.

We use the Plato Model 170 Wire Cutter to cut our wire.

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!

TOOKKS HZY ABS Wire FixtureThis 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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