Baluue 10pcs Vibration Sensor Module Normally Closed Alarm Switch Module High Sensitive Efficient Vibration Switch Module for Car Truck Auto Vehicle
- TCRT5000 infrared emitting diode constantly launch infrared sensor, the infrared ray is emitted when reflected back were not reflected or but strength is not big enough, the infrared receiving tube has been in the off state, the output end of the module at this time as the low level, indicating diode has been put out state.
- Tested objects appear within the scope of testing, infrared light is reflected back and strength is enough big, infrared receiving tube saturation, at this time the output of the module for the high level, indicating diode lit up..