Hi community Im looking for a sensor with a mikrophone which alowes me to

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Hi community

Im looking for a sensor with a mikrophone which alowes me to build something like a soundmeter. maybe based on the volume or so.

I had a Sound Sensor V2 from aliexpress but somehow it died when i clapped at him and tried to read the digital pin…

any sugestions?

Thanks

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I’ve had great success with the Sparkfun MEMS microphone. It’s a 3.3V device, so you need to be careful when you hook it up and program it. Great amplification though.

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@Andrew_Tuline ​ yeah Sparkfun’s microphone is great. I actually modified it to a mix of 2 different revisions of theirs and implemented it into my own custom PCB but in essence it is still the same sparkfun circuit. Totally worth the investment. I bought 3 of theirs :slight_smile:

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So the sensor works again, it has digital out and analog out… if i read the digital out its either 1 or0 which seems to binary output after all… and the other is analog out which i probably shouldn’t hook directly to a pin on the teensy since the cable startet to get hot…

I have troubles how to read now the volume, i was expecting a number from 0 to 100 or so which indigiates the volume level

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I didn’t have much luck with those aliexpress sound sensors.

Here’s a video I did with a few different sound reactive routines on a Nano using the MEMS microphone:

In the meantime, I’m now adding an Ultrasonic sensor to the mix.

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thanks thats very nice… is it possible to make a vu meter with the mems microphone? I’m really unsure in how the analog read /digital read actually works. do you have any code samples?

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Thats a video of a fade VU meter pattern running off of an attiny85 hooked to sparkfuns electret microphone. MEMS microphone should work the same

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sadly i couldn’t pruchase the mems microphone… but the sound detector (SEN-12642) from sparkfun. My guess that one should work to right? but still i need some code examples how a vu meter is done with the analog read or the envelope which is still a analog signal… until now i have never worked with a analog signal…

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Id be happy to share my code if itll help you out

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Looks like you should be able to use it with just the VCC GND and AUD pins

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https://plus.google.com/+CristianMartinez23/posts/U5vqCM6yPs2

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Yeah or the envelope which should encapsulate the vu signal better but not 100 sure :wink: i looked at the producmt video from spark and they made a vu meter and wired up the envelope pin :wink:

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Theres some links there that might help

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Ive been so engulfed with my 3D printer i havent made any progress on my programming skills. Im still noob level lol

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Thanks for the link i will look into it… I have more troubles in understanding how to interpret the values on the analog read :wink: