Use:
Various alarm sensor modules, vibration switch modules, motorcycle electric vehicle alarms.
Module Features:
1. Adopting the highly sensitive SW-420 vibration switch produced by our company
2, the comparator output, the signal is clean, the waveform is good, the driving ability is strong, more than 15mA
3, working voltage 3.3V-5V
4, the output form: digital switch output (0 and 1)
5, with fixed bolt holes for easy installation
6, small board PCB size: 36mm x 19mm
7, using a wide voltage LM393 comparator
Small board interface description (4-wire system)
1 AO small board analog output interface
2 DO small board digital output interface (0 and 1)
3 GND external GND
4 VCC external 3.3V-5V voltage
Module instructions for use
1. When the product is not vibrating, the vibration switch is in conduction state, and the output terminal outputs low level
2. When the product vibrates, the vibration switch is disconnected instantaneously, and the output terminal outputs a high level
3. The output terminal can be directly connected with the single-chip microcomputer, and the high-low level is detected by the single-chip microcomputer, thereby detecting whether the environment has vibration and playing an alarm role