Register with JLCPCB now to get a $60 coupon to buy high-quality PCBs: https://jlcpcb.com/?from=AAA
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
Previous video: https://youtu.be/netFl8pcwP8
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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.
Visit https://jlcpcb.com to get professional PCBs for low prices.
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
