Description:
KY-038 microphone module is used to convert audio signal to digital or analog signal.
This module has a condenser microphone and an op amp that receives the audio signal and puts the analog signal on the AO pin and the digital signal on the DO pin, and the DO output is for when the intensity is It is activated when the sound reaches a certain threshold. In this case, you can set the threshold value using the multitrain on the module.
KY-038 module can be easily connected to control boards such as Arduino and Raspberry Pi due to its design and analog and digital output. The digital output pin is activated when the audio input exceeds a value that can be adjusted by a multi-train on the board. It has two indicator LEDs L1, L2, one LED lights up when the voltage is connected and the module is started, and the other LED lights up when the sound of the microphone increases and it reaches the set value.
Application:
DIY projects
Audio equipment
Specifications:
Model: KY-038
Required voltage: 5~3.3V
Microphone type: condenser
Op amp: LM393
Fixed gain: 20dB
Frequency range: 100 ~ 10000 Hz
Dimensions: 15 x 35 mm
Mounting holes: 3 mm
High sensitivity
AO: analog output, real-time output of microphone voltage signal
Do: Generate high and low level signals when the sound intensity reaches a certain threshold. (The sensitivity of the threshold can be adjusted with a potentiometer)