Audio VU meter - stereo audio level indicator

Set for speech recognition compatible with Arduino. It consists of the Base Shield V2 expansion module, the voice command recognition module, the audio module and the necessary accessories. Seeed Studio 110020108

The Modeling PWM Signal Mixer Module is a compact device that allows mixing of PWM signals in modeling, allowing for a variety of control of components such as guns, plates and motors. It can be precisely tailored to the user\'s needs and also offers flexibility in control priority settings.

Three-way crossover with a crossover frequency of 1000 Hz and 5000 Hz. It works with speakers with an impedance of 5 to 8 Ω and offers power up to 180 W

Mini MP3 player with microSD card support. It can work as a separate device and play sounds from the card or be controlled via the UART serial interface.

KAmod DMX512 is a DMX signal converter that enables communication between a computer and a stage lighting system. It is equipped with full galvanic isolation, supports up to 512 devices, has a transmission range of 1200 m, is powered via a USB-C port, and is compatible with various programs, making it ideal for professional use in theaters, clubs, and concerts

Gravity: Analog Sound Sensor is a sound sensor with Gravity analogue output. The module can be supplied with 3.3 ... 5V voltage. DFRobot DFR0034

Module containing TSH82 operational amplifier from STMicroelectronics. The system has two built-in amplifiers and each of them is available separately on the pins of the board as inverting amplifiers. Sparkfun BOB-14874

Class D digital audio amplifier. It has two channels with a power of 50 W and can work with speakers from 4 to 8 Ω. It is powered with the voltage from 11 to 26 V

Microphone preamplifier based on the AD828 chip. Powered with DC voltage from 9 V to 24 V or AC in the range from 8 V to 16 V

Class A power amplifier with one channel, 10 W. Built on the popular design of J. Hood from 1969. The set includes 2 pieces for self-assembly

Module with WM8960 audio decoder that allows you to operate 1 W stereo speakers and two microphones via the I2S interface. Adafruit 4757

Module with MEMS microphone; model SPW2430 with built-in amplifier. The plate also has a 3.3 V voltage stabilizer needed to power the microphone. Adafruit 2716

Simple and versatile module that converts I2S audio signals into analog signals, making it ideal for driving speakers with up to 3.2W of power.

Adafruit 2342

TEA2025B class D stereo digital audio amplifier module. The system allows you to connect two speakers with an impedance from 4 to 16 Ω and a power of 3 W each

Audio Analyzer is a module with sound analyzer based on the MSGEQ7 system. It divides the sound into seven frequency bands, and then allows you to read the peak levels of each band. It allows you to measure the sound in the following frequencies: 63Hz, 160Hz, 400Hz, 1kHz, 2.5kHz, 6.25kHz and 16kHz. DFRobot DFR0126