-
1, AO, analog output, real-time output voltage signal of the microphone 2, DO, when the sound intensity reaches a certain threshold, the output signal [high and low threshold - Sensitivity adjustment by potentiometer] Module features: 1, there is mounting screw holes of 3mm. 2, using the 5v DC power supply. 3, the analog output. 4, there is a threshold level output flip. 5, High sensitivity microphone, high sensitivity. 6, a power indicator light. 7, the comparator output indicator lamp.
-
Bring oscillation source Audino 9012 drive Work Voltage:3.3V-5V Set bolt hole, easy to assemble PCB Dimension:3.3cm*1.3cm It and your Arduino will be able to play melodies. This is a small buzzer for the Sensor Shield. It creates different sound based on the different frequency of I/O toggling. Pin Definition : Vcc : 3.3V-5V GND : The Ground I/O : I/O Interface of SCM