Mô đun cảm biến rung SW-420 cho Arduino

"Module Features: SW-420 using the company's production of normally closed type vibration sensor. The comparator output, the signal is clean, the waveform, the driving ability to exceed 15mA Operating voltage 3.3V-5V The output in the form: Digital switching outputs (0 and 1) A fixed bolt hole for easy installation Small board PCB size: 3.2cm x 1.4cm Wide voltage LM393 comparator Module using the instructions: The product does not vibrate, vibrate switch was closed conduction state, the output output low, the green indicator light; Product vibration, vibration switch instantly disconnect the output output high, the green light is not on; The output and the microcontroller is directly connected to the microcontroller to detect high and low, thereby detecting the vibration environment, play an alarm role"