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ART. No. AU-09 Microphone Amplifier

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產品介紹

Highly sensitive microphone amplifier, will detect low level sound. Sensitivity is set by a variable resistor. When sound level is exceeding its set level an on board Led will flash and adigital “0” output as well as an analog output are provided. Module has mounting holes for easy installation.

 

Operating Voltage:  5V

Digital Output:  high or low (normally at high, when set sound level is exceeded output goes low)

Analog output:  Level varies with sound intensity with indicator Led

Board size:  32 x 17mm

Mounting holes:  3mm

 

Connections:

Vcc = connect to 3.3V to 5V battery positive terminal

GND = connect to battery negative terminal

Do = digital output

Ao =  analog output


 


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