Module Monday #7: HW-028 Rain Drops Sensor Module | Learning Electronics In The Lab With Jay Jay

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Silly Job Title: Bench Master. I am the Bench Master!

In this video we take a look at the HW-028 Rain Drops sensor module: Separate PCB Board Raindrop Module Sensor Rising Water Level Detection Module Raindrop Sensor Board. Project doco is here: HW-028.

We found some instructions and tutorials, including these:

Also we noted the use of the LM393 comparator on the module.

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Galacok 12 Pcs Magnetic Phillips Screwdriver SetThis is an image of the product.

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The Transistor, an Electronic “Trigger” | Project 5/30 | Maxitronix 30in1 | In The Lab With Jay Jay

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Silly Job Title: Power Provider. I am the Power Provider!

In this video we continue to work through our Maxitronix 30in1, today doing project #5: The Transistor, an Electronic “Trigger”. In this project we see how an NPN transistor works.

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!

Emenne 110111 Brush HolderThis is an image of the product.

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Mail Call #51: Stamp Breakout Boards, DIY Telegraph Machine, PTZ Mount with Servos, and More!

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

Silly Job Title: Lightning Tamer. I am the Lightning Tamer!

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

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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 A5 Cutting MatThis is an image of the product.

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Electronics Project #21: DIY Telegraph Machine | Learning Electronics In The Lab With Jay Jay

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Silly Job Title: Joule Juggler. I am the Joule Juggler!

In this video we assemble the Children’s Science Technology Small Production Diy Telegraph Machine in the Science Experiment Equipment Stem Education Model.

The instructions were easy enough to follow, given they are in Chinese! We get the two circuits working perfectly. Really impressed with this one, it works like a charm! Didn’t do any range testing or what not, I’m going to do this one again when my little people come to visit.

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!

MROOFUL Carpenter Mechanical PencilThis is an image of the product.

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