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A good little Ultrasonic Mic

Product link:Digital MEMS Microphone

Story

A cheap and useful little Ultrasonic Mic. I've paired it with an RP2350 Zero and am able to capture Pistillate bats! I am going to be curious to see how far I can push its 80kHz Frequency max.

Jun 20,2026

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A*****
1830

5

1
Working great!

If you know Home Assistant, you shouldn't have a problem getting these working. Programming isn't for beginners! But can all be done through ESPHome. My only hiccup was some coding issues, which I've emailed the developer about, to adjust the documentation. There was an issue with where the images should be in the code. I've upgraded one of the batteries to a 2Ah, and also added a 5v 75MaH solar panel to another. Both work great. I can't figure out how to get second pages to work. I'd like to add an info page for each plant. Could also do with a blank template for the display image. I Photoshopped my own version using the default one in the files, added my own fonts, etc. I also changed the position of the date and time in the code as they were misaligned a little with icons.
L*****
3068

5

2
Airplane

Airplane The board turned out very well, everything fits perfectly.
M*****
1620

4

0
Great quality

The pcb quality is great, sadly I made a mistake in the design, so expect a new order soon :)
I*****
549

2

1
Very satisfied - highly recommended

I am a long time customer - I have done more then 10 projects and each project I have been helped by professional people who are knowledgable and happy to assist. Very highly recommended.
a*****
4427

2

0
Needed it fast

Needed controller for radiator fan and other items on an old antique pick up truck. Took less than a week -start to finish. Excellent quality from Elecrow... as usual.
r*****
2217

2

0
ATARI

Received my order today :) Very happy how everything has turned out, I would fully recommend ELECROW to anyone wish to make anything circuitry beginners or professional AAA++++
M*****
810

2

1
Pedal to jack Adaptor

Awesome service and prices, PEdal to Jack Adaptor Designed For Adapting Ride-On-Cars for Children with disabilities
L*****
1795

2

0
Perfect

Llego en un par de semanas. todo en perfecto estado, funciona sin problemas 10/10
a*****
1723

2

0
Excellent Quality

Third PCB order from Elecrow. All three have been of excellent quality.
A*****
1470

2

1
Professional quality pcb

I have used their service for my first ever PCB fabrication. My first pleasant surprise was the packaging, it is really on a high and professional level. All PCBs came vacum packed- bubble wrapped. The quality of the pcb is really on a high level. Pads, traces, holes all are crisp and like on the drawing. Silk screen is also of nice quality. I'd compare their PCBs to PCBs that are used in commercial/ professional products. I also like their shipping options, and the delivery time is fast. The customer service is also kind, and they respond back quickly. I'm happy with the service, I placed another order. I will be using it again, I can recommend Elecrow!
C*****
485

2

1
Exceptional Service

Chris always makes sure that my requests and specifications are met. Very good communication, and followed up with me by email to make sure that my design would not have any problems during the manufacturing process. He even hurried to send out my order before the holiday.
I*****
1753

2

1
Great PCB service

Fast delivery, great PCBs. I think the solder mask is a bit thin.

A good little Ultrasonic Mic

Story

Working great!

Airplane

Great quality

Very satisfied - highly recommended

Needed it fast

ATARI

Pedal to jack Adaptor

Perfect

Excellent Quality

Professional quality pcb

Exceptional Service

Great PCB service

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