NodeMCU-SW-420-Vibration-Sensor-Alarm-System 📝 Description This project creates a smart vibration detection system using: NodeMCU ESP8266 SW-420 Vibration Sensor Module Buzzer for local alarm SMTP ...

Vibration sensor details SW-420 As you might notice, the core part of the SW-420 vibration sensor module is an omni-sensing vibration/tilt switch that has a part number SW-420. Looking at some details ...

The vibration sensor module is monitored by GP5 (pin 2) of PIC12F675. During the normal condition, GP5 is at logic high (H) state, because of the 10K pull-up resistor. When the motion is sensed, the ...