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  • January-25 2021 13:01:06

    Working as intendet. High gain.

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  • January-24 2021 07:45:26

    Tudo ok, de acordo com a descrição.

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  • August-11 2019 04:43:08

    + Working as intended. + Good quality + Very useful + Smart chip offering a lot of functions + High gain - Nothing.

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  • April-27 2017 17:16:25

    Применение этих микрофонов с ардуино https://youtu.be/mk5nf10OP-E

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  • May-22 2018 05:02:47

    Product arrived in good perfect condition

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  • December-23 2017 01:19:55

    Item very good for various audio projects. I used it in a doorbell and it works fine.

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  • April-25 2020 23:43:31

    Plan to use with a spectrum analyzer. The Max9814 chip keeps the output level for varying room audio.

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  • June-19 2020 10:55:49

    good quaity sound

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  • February-14 2019 04:51:14

    Excellent low noise microphone amplifier + electret microphone on it. Power it either with 3.3V or 5V, you may feed directly out to your Arduino ADC input. The output from this preamplifier is about half of the VCC voltage. There is AGC (Automatic Gain Control), but it may be bad if you want use it as YouTube microphone for your computer - while not talking, all background noises are amplified. To disable AGC, short together pins 13 and 14 on the chip, or better to adjacent resistors with designations

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  • August-17 2017 14:26:11

    This microphone adjust his gain to a lower rate when the sound is really loud and higher the gain when there is only a small sound available. This mic is useful as spy-mic or for robot communication but for big VU-meters, I should look for a not auto-gain-adjusting (but high gain rate) one like the CJMCU MAX4466 (gain adjustable from low to high enough).

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