HiLetgo 2pcs Electret Microphone Amplifier MAX4466 Module Adjustable Gain Blue Breakout Board for Arduino

This is a nice microphone for DIY projects. It has only three connections, power, gnd, and signal. It is amplified, but I found it works better when the sound is close by. I plan on using it to detect sound by a small robot.

Prompt service. I ordered these for a students project. Unfortunately I threw the package away and had to reorder. Second order arrived quickly. No issues with devices. Student has will install next week.

I rigged the microphone up with an old amplifier and some earphones to facilitate conversation with my hearing impaired wife. The setup works really well, except that I powered the mike with a couple of AA batteries. Sadly the batteries don't last very long. I haven't measured the current drain yet, but it must be fairly hi,

Not only can they be used as sound level meter sensors used in many projects, they are actual microphones that can be hooked directly to a pre-amp, mixer, or an analog to digital converter. If you use 5 volt power, output levels, even from background noise, will be almost 5 volts, and any intended input will clip. Using 3.3 volts on Arduino or Pi will give you about a 2 volt floor that will eliminate most clipping. There is some slight noise in the output, so I am going to try 2.5 volt vcc. Great find.

These are super cool and accurate. My arduino is giving me a nice fat range of values to utilize. There are other microphone sensors WITHOUT the amplifier and let me say they are NOT worth the time because they will return noisey and inaccurate values. Try these out - I'm using them for robot eyes that wake up when you talk, open widely when you shout, and fall asleep if quiet.

I see there are a lot of great reviews but these microphones need to be very close to whatever you want them to pickup. I tried to make a music reactive display using them. Unless the speakers playing music were a couple inches away it wouldn't pick up anything. The little trim pot on the back of the mic doesn't seem to adjust sensitivity.

The microphones came and I soldered the pins onto one of them (I couldn't get a reliable connection without soldering). I had never soldered before so it was a little difficult, especially taking into account the size of the connections. It now works as expected and I have no complaints. I haven't yet tried the second one but I have a hard time believing it wouldn't work

I tried to use them for a project without the arduino board. It should work on paper, but it didn't. I can't fault them for it though because it is not designed for my use

Uno de los micrófonos no funcionó.

①プラス ②入力信号 ③マイナス ＜作成＞100均のLEDグースネックスタンドライトのグースネックを外し、根元の電池ボックス部(単3電池3本)にこのマイクの①プラス③マイナスを接続。 ②入力信号にΦ3.5小型入力4ピンジャックのマイク端子線を接続。 ③マイク端子マイナスとマイク4Pプラグマイナスを接続 ④4Pジャックをパソコンのマイクヘッドフォン4端子入力に差し込み、電池ボックスのスイッチをon。 ⑤パソコンデバイス設定でこのマイクを選択。出力はパソコンのスピーカーで対応。 ⑥マイク入力が正常にきれいに入り、TEAMS会議先の相手にもきれいに聞こえる。 ゲインボリュウムは真ん中ぐらい。⑦音質は少し輪郭がボヤっとするが、周囲60㎝通話で複数人の音がひらえる。

少し前に入居した上階の住人があまりにも大きな音をたてるので、足音に同期してブザーを鳴らす装置を、本品＋圧電式ブザー＋arduinoで作製(arduino初挑戦)。部屋のちょっとした音には反応せず、足音だけに反応させるのは、直繋ぎ・フィルタやアンプ無しでは難しいかと思いきや、±3digitくらいに閾値をおくことで結構いい感じに仕上がる。装置の効果があったのか、最近は夜中に足音で目覚めることがなくなりました。