2025-01-12

[public] 179K views, 17.1K likes, dislikes audio only

GreatScott!

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You can get the Buy version here: (affiliate link)

https://s.click.aliexpress.com/e/_oD6UBUf

You can get the Components for the DIY version here: (affiliate links)

Ultrasonic Transmitter: https://s.click.aliexpress.com/e/_oDQFVBd

Arduino Nano: https://s.click.aliexpress.com/e/_okX3avH

AD9833: https://s.click.aliexpress.com/e/_oDeuagx

MCP602: https://s.click.aliexpress.com/e/_oEDZwl9

LM393: https://s.click.aliexpress.com/e/_oFZpp8n

Resistors: https://s.click.aliexpress.com/e/_onvcJTz

Potentiometers: https://s.click.aliexpress.com/e/_oCBUSh9

H-Bridge: https://s.click.aliexpress.com/e/_oopCfcP

You can download the DIY project files here:

https://www.patreon.com/posts/119558088

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In this episode of "DIY or Buy", we will be having a closer look at directional speakers. The usage of such speaker is "fairly" new and quite interesting. As the name would suggest, they can playback audio in a very directional straight beam. So how does this sound? How does it work? And why is it so expensive and can we maybe create a cheaper DIY version? Let's find out!

Websites that were shown during the video:

https://cocosonics.myshopify.com/

https://github.com/TheSpaceEgg/SimpleAD9833

https://www.analog.com/media/en/technical-documentation/data-sheets/ad9833.pdf

https://www.estudioelectronica.com/wp-content/uploads/2018/09/SHT-USW-1.pdf

Thanks to JLCPCB for sponsoring this video.

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0:00 Directional Speakers are TOO PRICEY!

1:35 Intro

2:20 How does it Work? (Simple)

3:55 Repairing the Buy version

4:56 Testing the Buy version

6:31 How does it Work? (Amplitude Modulation)

7:55 Creating a DIY version!

10:30 Testing DIY VS Buy!

11:45 Verdict