A sound sensor is a module that detects sound waves by measuring their intensity and converting them into electrical signals. The sound sensor includes an in-built capacitive microphone, a peak detector, and an amplifier (such as LM386 or LM393) that is highly sensitive to sound.
Sound sensors find applications in various day-to-day scenarios, including consumer electronics like phones, computers, and music systems, as well as security and monitoring systems such as burglar alarms and door alarms.
Main chip: LM393, Electret condenser microphone
Working voltage: DC 3.3-5V
Induction distance is 0.5M
Signal output Indication
Single channel signal output
The output effective signal is low level.
Working voltage: DC 3.3-5V.
IC Chip: LM393
Signal output indication.
The output is digital.
Single channel signal output.
With the retaining bolt hole, convenient installation.
Output low level and the signal light when there is sound.
The main chip: ISD1820.
Operating Voltage: DC 3V-5V.
Loudspeaker: 8 ohms, 0.5W.
An easy to use 10 seconds of voice recording.
High-quality, natural voice restored.
Can be used as a propaganda module.
With looping, jog playback, single pass play function.
Digital I2S interface with high precision 24-bit data
High signal to noise ratio is 61 dBA
High sensitivity – 26 dBFS
Stable frequency response from 60 Hz to 15 kHz
Low power consumption: low current consumption 1.4 mA
High PSR: -75 dBFS
Working voltage: 3 ~ 5V
Board size:54 x 38 mm
ISD1820 Sound/Voice Board Recording
100% Brand new and high-quality Board
ISD1820 chip with an Onboard microphone
Supply Voltage: 6-12VDC
Frequency Range: 100-5500 Hz
Output: 2.5Vpp/-25db
Low noise
High fidelity
Wide working voltage range
Low power consumption
Long transmission distance