Arduino-Compatible Microphone Sound Sensor This is a high sensitivity sound detection module with two outputs. AO - analog output, real-time output voltage signal of the microphone. DO - the digital output depends on the sound intensity and the threshold that has been set. Specifications Voltage: 3.3 to 5 VDC Outputs: one analogue one digital output Fixation: 1 mounting screw hole 3 mm 2 indicator LEDS: 1 power indicator 1 comparator output indicator Frequency response: 50 Hz - 20 KHz Impedance: 2.2 K Ohm Sensitivity: 48 - 66 dB Operating temperature: -40 to 85C Size: 44 x 15 x 10 mm Weight: 4 g
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