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Sound sensors

Sound sensors, acoustic wave sensors with a microphone and vibration sensors are a group of transducers that detect vibrations in the form of waves of different frequency, converting them into an electrical signal. In Botland store, you will find sensors suitable for the application you are building .. Offer of sound sensors and electroacoustic signalling devices of the Grove module system from Seeed Studio, compatible with Arduino and Raspberry Pi. The sensors enable the construction of any applications that use sound signals for control (e.g. acoustic switches), as well as enriching the projects with the function of emitting a sound signal triggered by a specific event, e.g. low battery level. We also offer LED modules that can work with sensors and sounders. Another type of sensors we offer are vibration detecting sensors, i.e. operating in the frequency band from 1mHz to even 1GHz, so it can be used in a wide range of devices, e.g. in anti-burglary systems, motion detection systems in space, as well as switches.

Products: 17
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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 €10.67 Price €10.67

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 €71.86 Price €71.86

VS1003B MP3 player - sound module with microphone - Waveshare 4038

Sound module with built-in decoder VS1003B. It has line input and line output for connecting a microphone and headphones. The board has also a simple microphone. The module...
Index: WSR-04488
Index: WSR-04488
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Czas oczekiwania: ok. 10-30 dni
Regular price €9.28 Price €9.28

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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Regular price €36.98 Price €36.98

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 €6.02 Price €6.02

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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Regular price €41.84 Price €41.84

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 €2.08 Price €2.08

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 €0.70 Price €0.70

Whadda WPSE309 - sound sensor - microphone

Audio detector powered with the voltage ranging from 3.3 V to 5 V. T he module is easy to use, it has two outputs: analog - to measure the intensity of the signal and...
Index: VEL-13023
Index: VEL-13023
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Regular price €3.93 Price €3.93

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 €1.15 Price €1.15

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 €2.07 Price €2.07

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 €1.56 Price €1.56

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.