Robocraze LM393 Sound Sensor Module Arduino Compatible Sound Detection Module with Electret Microphone | Adjustable Sound Trigger Sensor for Robotics IoT Automation Noise Detection Projects

Good product reasonable price best value for money

Good but output voltage is little low

Its working fine,if you want a longer delay need to change capacitor by your own with a higher farad

It's good enough for detection, however the analogue level signal is not very reliable. The potentiometer varies the digital output threshold level, however can't be used to change sensitivity for the analogue signal, and is merely used for biasing. Also, since it's a piezoelectric microphone, you need a really loud sound in close proximity for it to detect. Distant or soft sounds aren't picked up. I bought 4 for a project, and needed analogue levels, so this was disappointing. A more sensitive condenser microphone is ideal for applications such as mine. Would have been nice if the product page had proper details.

This sensor works really well and responds exactly as expected. Easy to use and perfect for small Arduino projects. Happy with the purchase.

Possibly nothing wrong with seller, but the very product is not correctly designed. It constantly gives erroneous reading. Not at all a good sensor to measure tank water level. Will add lots of frustrations if you rely on its data.

I am just using the transducer part of this since I already have the chip part. And it works as expected. It's pretty pricy though.

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