The 801S Vibration Sensor Module is a sensitive micro shock detecting sensor that operates by changing its resistance when a shock or vibration is detected.
The sensor operates in any orientation and is extremely sensitive to any type of movement such as a light tap or vibration. Unlike many sensors that use a mechanical switching element, this sensor uses resistive element that changes resistance with motion.
The module output is normally LOW and outputs a series of random HIGH pulses when a vibration or shock is detected. The on-board LED is normally ON and goes OFF momentarily or appears to flicker when a shock is detected. It can take up to 2 seconds for the output to return to a steady LOW after the shock / vibration is removed
There are two variants we have seen on this module with different resistor values. The current draw is either about 2mA or about 10mA @ 5V. Most of that is due to the on-board LED.
The module includes an LM393 comparator with a potentiometer to allow adjustment of basic sensitivity level. Turning the potentiometer CCW increases sensitivity.
- Working Voltage: 3.3V or 5V
- Micro-Shock detecting with adjustable sensitivity
- Multi-direction vibration detection
- Interface Type: Digital output
- Size: 38mm x 17mm
- Weight: 15g