Sound-sensitive detectors
A: Features
1. You can detect the intensity of ambient sound, using Note: This sensor can only recognize the presence or absence of sound (based on vibration principle) does not recognize the size of the sound or specific frequencies of sound
2. Sensitivity adjustable (shown in blue digital potentiometer adjustment)
3. The operating voltage of 3.3V-5V
5. Output the form of digital switching outputs (0 and 1 high-low)
6. A fixed bolt hole for easy installation
7. small PCB board size: 3.2cm * 1.7cm
B: Module wiring instructions
1.VCC external 3.3V-5V voltage (can be connected directly to the 5v and 3.3v MCU MCU)
2.GND external GND
3.OUT small plates switch output interfaces (0 and 1)
C: Instructions
1. The sound module sound intensity most sensitive to the environment, is generally used to detect the intensity of ambient sound.
2. Module not reach the set threshold environmental sound intensity, OUT output high, when the ambient sound level exceeds the set threshold, the module OUT output low;
3. Small board digital output OUT can be directly connected to the microcontroller through the microcontroller to detect high and low, thereby detecting a sound environment