MIC Board Voice Detection Sound Module

Description

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 structures. 1. Features high sensitivity, Electret Condenser Microphone (ECM) sensor 2. Power supply indicator lamp 3. Comparator output indicator lamp 4. AO, real-time microphone voltage signal output 5. DO, high / low electric level signal output 6. Analog quantity output 7. Threshold rollover electric level output 8. Sensitivity adjusted by potentiometer 9. Main chip: LM393, Electret condenser microphone