100% Brand new and high quality
For sound detection module has two outputs:
AO, analog output, real-time output voltage signal of the microphone
DO, when the sound intensity reaches a certain threshold, the output high and low signal
There is a mounting screw hole 3mm
The use 5v DC power supply
With analog output
There are threshold level output flip
High sensitive microphone and high sensitivity.
A power indicator light
The comparator output is light
Package Included:1 x Sound Detection Module
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.