About Jay Jay

Hi there. My name is John Elliot V. My friends call me Jay Jay. I talk about technology on my blog at blog.jj5.net and make videos about electronics on my YouTube channel @InTheLabWithJayJay.

Module Monday #2: KY-002 Vibration Switch Module | 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.

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

Silly Job Title: Amp Alchemist. I am the Amp Alchemist!

In this video we demo the KY-002 Vibration Switch Module. There’s more info here: KY-002 Vibration Switch Module on ArduinoModulesInfo.

Source code is here: 2025-10-13-KY-002-Vibration-Switch.ino.

We use the Rigol MSO5074 Mixed Signal Oscilloscope to check the output signals.

We use the Riden RD6006 Bench Power Supply for power.

We use the EEVblog BM2257 Digital Multimeter to test voltage.

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!

Aussishop CalipersThis is an image of the product.notes

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FREE Analog Engineer’s Circuit Cookbooks from Texas Instruments

Today over on the EEVblog forum I learned about the two ebooks available from Texas Instruments. One is for amplifier circuits and the other for data-conversion circuits, including both Analog-to-digital converter (ADC) circuits and Digital-to-analog converter (DAC) circuits. I had to sign up for an account before I could download…

CPU Reballing

In the following video these products are used:

Old Book Teardown #16: Encyclopedia of Electronic Circuits Volume 3 (1991) | In The Lab

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

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

Silly Job Title: Prime Hack. I am the Prime Hack!

In this video we take a look inside Encyclopedia of Electronic Circuits Volume 3 by Rudolf F. Graf.

Some circuits of interest included:

Page Circuit
245 Electronic Dice
327 Adder
337 Electrostatic Detector
594 On/Off Inverters

Some things we needed to look up while flipping through:

CMRR is Common-Mode Rejection Ratio.

RIAA is Recording Industry Association of America.

RIAA equalization is a specification for the recording and playback of phonograph records, established by the Recording Industry Association of America (RIAA).

PUT is a Programmable Unijunction Transistor.

φ (phi) can represent an angle, typically the second angle mentioned, after θ (theta).

PEP is Peak Envelope Power.

For voltage signals you usually want high input impedance and low output impedance.

LVDT is a Linear Variable Differential Transformer.

NAB is North American Broadcasters. They defined phonograph standards similar to the RIAA’s.

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!

JYHealth Medical Digital ThermometerThis is an image of the product.

Let’s go shopping!