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Sound sensors

Products: 17
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Microphone 50-56dB 9/4,5mm - THT - 10 pcs.

Height h: 4.5 mm. Diameter Ø: 9 mm. Sensitivity: 36-38 dB. Pins for soldering to  the printed circuit board.
Index: UCC-00740
Index: UCC-00740
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Regular price €1.51 Price €1.51

Microphone 36-38dB 6/2,7mm - THT - 10pcs.

Height h: 2,7 mm. Diameter Ø: 6 mm Sensitivity: 36 - 38 dB. Pins - pitch: 1.8 mm.
Index: EAK-03252
Index: EAK-03252
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Regular price €2.23 Price €2.23

Electret microphone and OPA344 amplifier module - SparkFun BOB-12758

Module with microphone and operational amplifier. The output signal is amplified 100 times so the system can be connected directly to the analog inputs of microcontrollers.
Index: SPF-01614
Index: SPF-01614
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Regular price €7.40 Price €7.40

PAM8403 5V 3W stereo audio amplifier - two-channel - red

A module with a versatile two channel amplifier, it is powered with a voltage of 5 V. It allows you to connect the speakers of from 4 Ω to 8 Ω and with 3 W of power, each.
Index: GRL-12806
Index: GRL-12806
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Regular price €1.10 Price €1.10

Sound detector - microphone - SparkFun SEN-12642

Audio detector powered with the voltage ranging from 3.5 to 5.5 V. The module is easy to use, it has three outputs: an analog - to measure the intensity of the signal, digital...
Index: SPF-02211
Index: SPF-02211
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Regular price €10.33 Price €10.33

Whadda WPSE309 - sound sensor - microphone

Sound detector powered by a voltage from 3.3 to 5 V . The module is easy to use, it has two outputs: analogue - enabling measurement of signal intensity and digital -...
Index: VEL-13023
Index: VEL-13023
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Regular price €3.98 Price €3.98

Grove - LM386 sound sensor

Module from the Grove series, based on the LM386 system and electret microphone. It can be powered with any voltage from 4 V to 12 V. The output is an analog signal. The sensor...
Index: SEE-11350
Index: SEE-11350
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Regular price €1.11 Price €1.11

Grove - module with a slide switch...

Digital buzzer module for Arduino and Raspberry Pi, which can be controlled via low and high status. When changing the frequencies of the buzzer, you can hear a different...
Index: DFR-11263
Index: DFR-11263
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Regular price €2.01 Price €2.01

Grove - LM2904 sound sensor

Module from the Grove series, based on the system LM2904 and a microphone. It can be powered with a voltage ranging from 3.5 V to 10 V. The output is the analog signal. The...
Index: SEE-11332
Index: SEE-11332
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Regular price €2.00 Price €2.00

VS1003B MP3 player - sound module with microphone - Waveshare 4038

Audio module with built-in VS1003B decoder. It has a line input and output for connecting a microphone and headphones. There is also a simple microphone on the board. The...
Index: WSR-04488
Index: WSR-04488
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Regular price €10.33 Price €10.33

Grove - vibration sensor with piezoelectric membrane

Vibration sensor with flexible plastic piezoelectric sensor LDT0-028. It is supplied with 5V, works with modules from Arduino, Raspberry Pi and other...
Index: SEE-11342
Index: SEE-11342
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Regular price €6.98 Price €6.98

Enviro pHAT - temperature, humidity, pressure, light, gas, ADC sensor with microphone - HAT for Raspberry Pi

Overlay for Raspberry Pi equipped with BME280 temperature, pressure and humidity sensor, LTR-559 light and proximity sensor, MICS6814 analog gas sensor, ADC ADS1015...
Index: PIM-17074
Index: PIM-17074
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Regular price €55.13 Price €55.13

Environment Science Board V1.0 for BBC micro:bit - DFRobot MBT0013

A developmental plate for the BBC's micro:bit minicomputer, which allows children to learn the basic issues of nature. It has a variety of built-in sensors, which are...
Index: DFR-15923
Index: DFR-15923
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Regular price €69.53 Price €55.62
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Microphone 50-56dB 9/4,5mm - SMD

Height h: 4.5 mm. Diameter Ø: 9 mm. Sensitivity: 36 - 38dB.  Items are sold in sets of 5 pieces.
Index: EAK-00739
Index: EAK-00739
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Regular price €0.68 Price €0.68

SPW2430 - module with MEMS microphone - Adafruit 2716

Module with silicon microphone, MEMS type, which does not require amplifier. It detects sound with frequency from 100 Hz to 10 kHz and converts it into an analog output signal...
Index: ADA-04968
Index: ADA-04968
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Delivery scheduled for 2021-10-18
Regular price €6.28 Price €6.28

DFRobot Gravity - analogue meter of the sound level

The sound level meter is compatible with Arduino. For measurements, it uses the circuit instrument and the microphone with a low noise level that allows to accurately measure...
Index: DFR-10832
Index: DFR-10832
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Delivery scheduled for 2021-10-20
Regular price €41.40 Price €41.40

ESP-EYE - image and speech recognition - 2mpx camera, WiFi ESP32

The ESP-EYE development board is used for image detection and recognition as well as speech signal processing. ESP-EYE has a built-in ESP32 chip and is equipped with a 2 MPx...
Index: DFR-15585
Index: DFR-15585
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Delivery scheduled for 2021-10-20
Regular price €34.88 Price €34.88

Microphones - the most popular sound sensors

Microphones are sensors operating on the principle of proportional conversion of the energy of the mechanical vibrations of the magnetic diaphragm into electricity, in the form of a voltage causing the current flow in the coil winding. The most common microphone designs used on stage and in recording studios are dynamic, ribbon and condenser microphones. In addition to popular microphones, sound sensors based on piezoelectric and electrostatic phenomena are also used, which enable sound detection in various industrial, medical and robotics applications, as well as in identifying and tracking objects, e.g. by echolocation. The design of such sensors allows the detection of sound waves, the frequencies of which fall outside the spectrum of the human audibility band. For example, ultrasonic sensors are used in the process of welding plastics, and infrasound sensors are used in the process of inspecting the structure of materials with a lower density than most metals, such as wood, concrete or cement. Measurements made with such sensors are not affected by environmental illumination, as can be the case with measurements with light intensity and colour recognition sensors.

Buzzers - one of the smallest speakers with a wide range of applications

The buzzer is a small loudspeaker that produces a clear sound signal by applying a voltage to its terminals. Most often, the design and operation of a buzzer are based on the vibration of piezoelectric material between two electrodes. For the buzzer to generate sound, its electrodes should be fed with a voltage that changes in time, e.g. in the form of a PWM signal from the microcontroller output. Buzzers are used in all applications that require sources of a simple acoustic signal, such as microwave ovens with sound signalling of the end of heating a meal, alarm and warning devices, as well as electronic toys. Buzzers are also found in PC desktops and make themselves felt, among others when the user warns about enabling the Sticky Keys function. Thanks to their small dimensions and low energy consumption, they are also used in playing gift cards.

Grove - high-quality sound level sensors

The sound level sensors are designed to measure ambient sound pressure levels. The built-in electret microphone and operational amplifier adequately filtering the input signal from interference (the bandwidth depends individually on the model) and the potentiometer for adjusting the gain of the output signal from the sensor (applies to the model based on the LM2904 chip), enable precise calibration and use of these sensors in sensory applications for sound detection and measuring its parameters. The sensors are compatible with Arduino - their output receives an analogue signal in the form of voltage. The sensor output should be connected to the input of the analogue-to-digital converter in Arduino, while in purely hardware applications, the purpose of which is to detect sound with a threshold amplitude, the sensor should be connected to one of the comparator inputs or an operational amplifier operating in the window discriminator mode.