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SEN0526 Fermion: I2S MEMS Microphone (Breakout)
US$8.87
This digital I2S MEMS Microphone works well with microcontrollers with I2S audio outputs like ESP32. Compared with traditional analog ones, this microphone features low noise, high sensitivity & reliability, and other excellent performances, which make it applicable to projects like voice recognition, recording, AI learning, Bluetooth audio transmission, and so on.
Delivery within 2-3 weeks
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SEN0539-EN Gravity: Offline Language Learning Voice Recognition Sensor for Arduino / Raspberry Pi / Python / ESP32 - I2C & UART
US$27.07
This Gravity: Offline Voice Recognition Sensor is built around an offline voice recognition chip, which can be directly used without an internet connection. It comes with 121 built-in fixed command words and supports the addition of 17 custom command words. Any sound could be trained as a command, such as whistling, snapping, or even cat meows, which brings great flexibility to interactive audio projects.
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GK-AS-ASNV geeekus Microphone LM386 Analog Sound Voice Noise Detection Sensor w Potentiometer
US$4.32

The geeekus Sound Sensor module is designed for measuring sound signals like voice, claps, snaps and knocks in your surroundings. It works through sound vibrations, which cause a plate inside the sensor to bend back and forth, producing a change in voltage that can be measured. Larger vibrations means higher values.

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AK-ASD-84 DIY Kit 5V Level Indicator Audio Spectrum 8x4 Voice Spectrum Lights, Red + Blue Colorful Display
US$11.60
DIY Kit 5V Level Indicator Audio Spectrum 8x4 Voice Spectrum Lights, Red + Blue Colorful Display
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SENS-LED-S1 Mono Sound Level Indicator, Music light, Audio Sensor Light
US$13.60
The louder the sound, the more the LEDs are lit from bottom to top. As the sound fluctuates, the LEDs will jump with the music, especially when playing...
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SENS-LED-S Voice-Activated Power Amplifier Spectrum Audio Level Meter
US$11.78
The louder the sound, the more the LED lights up from bottom to top.   As the sound rises and falls, the LED will also jump with the music,...
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ISD1760 Serial Voice Recording and Playing Module for Arduino
US$11.54
The ISD1700 series of recording chips are highly integrated and high performance chips. It can do multi-segment recording and the sampling rate can be adjusted from 4K to 12K. It can be powered by a 2.4 to 5.5VDC power supply.
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SEN0232 Gravity: Analog Sound Level Meter
US$69.75
This is an Arduino compatible sound level meter(also known as decibel meter, noise meter). It uses instrument circuit and low noise microphone, which enable it to accurately measure the sound level of the surrounding environment. It can be applied to environmental noise testing, such as highway noise monitoring station, bedroom noise monitoring, etc. Nowadays, there are many kinds of sounds surrounding, some of which are really noisy. It is really essential to measure whether the sound is noisy enough to do damage to our health.
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DFR0054 Gravity: Analog Rotation Potentiometer Sensor V1 For Arduino
US$5.00
This is an arduino rotation potentiometer , it is able to rotate upto 300-degree. With the Arduino IO expansion board, in combination, it can be very easy to achieve position-dependent interaction with the rotating effect or produce MIDI instrument. So with this sensor you can learn how rotary potentiometer works and what analog signal is. You can have much fun with this basic input device. Gravity Interface is adapted to allow plug&play. The IO Sensor Expansion Shield is the best match for this sound senor connecting to your Arduino. As this sensor can work at 3.3V which make it compatible with Raspberry Pi, intel edison, joule and curie.
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DFR0053 Gravity: Analog Slide Position (Potentiometer) Sensor For Arduino
US$9.75
This arduino Slide Position Sensor is based on straight-slip slide potentiometer sensor. The sensor is able to give provide the position of the slider which is often considered as a linear potentiometer . The sensor includes two analog outputs to allow the user to average the values and minimize random sensor fluctuations. To ease the difficult of using this sensor, a Gravity Interface is adapted to allow plug&play. The IO Sensor Shield is the best match for this sound senor connecting to your . A slide potentiometer is commonly seen in music mixer.
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SENS-77 Knock Sensor Module for 5v Microcontrollers
US$3.07
This device is a knock sensor that can process analog user input into digital signals for 5v compliant microcontrollers. It will not register light taps, only jolts or hard knocks. Holding the board with the pins facing towards you, the left most pin labelled S goes into digital pin 13. The middle pin goes into 5V supply and the right most pin labelled – goes into ground.
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SENS-42 LM393 Microphone Sound Sensor Module For Arduino
US$3.49
The microphone sound sensor module will detect any audio signals and convert them to either analog output or digital output to any microcontroller you connect it to. It uses the LM393 Chip from Texas instruments to help amplify the audio signal before sending it to your microcontroller.
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MOD-ISD1820 ISD1820 Voice Recording/Playback Module
US$13.78
Simple soldered device that only requires soldering for the connection of the 8ohm speaker to the wires. Press and hold the record button to record your message with a maximum length of 10 seconds or until the red light turns off. Press the PLAYE to playback the message and hold on PLAYL to hear the message until you release the button.
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SENS-41 Sound detection module with electret microphone
US$2.68

This small board detects when noise gets past an adjustable treshold and outputs a digital low. There is a small LED on the board that lights up when the circuit is triggered.

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WAVE-9534 Sound Sensor Module Voice Board
US$5.41

Overview: Onboard audio power amplifier LM386. Audio signal gain up to 200. Adjustable accuracy. Signal output indicator. Specifications: Mic sensitivity : 52dB. Frequency range : 50Hz ~ 20KHz. Power: 3.3V ~ 5.3V. Mounting holes size: 2.0mm.

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