Using the MAX4466, an op-amp specifically designed for amplifier, which has excellent power supply noise rejection, and the board comes with a 20-20KHz electret microphone soldered on.On the back, we include a small trimmer pot to adjust the gain.
Power supply voltage: +2.4V to +5.5V (can be compatible with STM, Raspberry Pi and other development board motherboards); Power supply rejection ratio: 112dB; Common mode rejection ratio: 126dB; AVOL: 125dB (RL = 100kΩ) rail-to-rail output; Quiescent power supply current: <24μA; Gain bandwidth: 600kHz. The output is rail-to-rail so if the sounds gets loud, the output can go up to 5Vpp!
Applications: This breakout board is best used for projects such as voice changers, audio recordingmpling, and audio-reactive projects that use FFT.
Note:For the best performance, use the “quietest” supply available (on an for Arduino, this would be the 3.3V supply); For audio-reactive projects, we suggest using an FFT driver library which can take the audio input and ‘translate’ it into frequencies.
PRODUCT ADVANTAGES: The main chip is LM393. Signal is clean, waveform is good, driving ability is strong.
ADJUSTABLE THRESHOLD: Build in potentiometer can be used to adjust the threshold level.
EASY TO USE, INTUITIVE: When sound intensity exceed a certain threshold, produces low(Digital output 0) signal and light will be off, Otherwise output high(Digital output 1) signal and light will be bright.
EASY TO INSTALL: There is a mounting screw hole, convenient fixed.
WIDELY APPLICATIONS: a variety of platforms including Arduino / AVR / ARM/PIC.
3. DEVMO 3PCS Mic Microphone Sensor High Sensitivity Sound Detection Module Compatible with A-rduino PIC AVR
Application: the MAX4466 microphone breakout is suitable for voice converters, audio recording and sampling, and audio response projects using FFT; On the back, there is a small trimmer pot to adjust the gain; You can set the gain from 25x to 125x
Parameters: power supply voltage: +2.4V to +5.5V (can be compatible with STM, Raspberry Pi and other development board motherboards); Power supply rejection ratio: 112dB; Common mode rejection ratio: 126dB; AVOL: 125dB (RL = 100 thousands of ohm meter) rail-to-rail output; Quiescent power supply current: less than 24 microamp; Gain bandwidth: 600kHz
20-20KHz electret microphone soldered on: comes with a 20-20KHz electret microphone soldered on the board for audio-reactive projects; It is recommended to use the FFT driver library, which can take audio input and ‘translate’ it into frequencies
Easy to use: connect GND to ground, VCC to 2.4-5VDC; For the good performance, use the ‘quietest’ supply available (this would be the 3.3V supply)
Power supply noise rejection function: the amplifier has good power supply noise rejection
6. GY-MAX4466 Electret Microphone Amplifier Sensor Sound Module with Adjustable Gain Control for Arduino (Pack of 2)
MAX4466 microphone breakout is best used for projects such as voice changers, audio recording/sampling, and audio-reactive projects that use FFT. On the back, we include a small trimmer pot to adjust the gain. You can set the gain from 25x to 125x.
Add an ear to your project with this well-designed which has excellent power supply noise rejection.
Using is simple: connect GND to ground, VCC to 2.4-5VDC. For the best performance, use the “quietest” supply available.
For audio-reactive projects, we suggest using an FFT driver library which can take the audio input and ‘translate’ it into frequencies.
If you have any problem, please contact seller as follow: click “DIYmalls”(you can find “Sold by DIYmalls” under Buy Now button), in the new page, click “Ask a question”.
7. MakerHawk 3pcs Electret Microphone Amplifier MAX4466 Module, Microphone Amplifier Module, GY-MAX4466 Breakout Sensor, with Adjustable Gain Breakout Board for Arduino
√The MAX4466 is a micropower operational amplifier optimized for use as a microphone preamplifier.
√Provides a gain bandwidth of 200kHz with only 24μA of supply current. After decompression, a minimum stable gain of +5V / V is achieved and a 600kHz gain bandwidth product is provided.
√For the best performance, use the “quietest” supply available (on an for Arduino, this would be the 3.3V supply)
√These amplifiers feature rail-to-rail output, high AVOL, and excellent power supply rejection and common-mode rejection ratios for operation in noisy environments.
√Widespread applications: This breakout is best used for projects such as voice changers, audio recording/sampling, and audio-reactive projects that use FFT.
