Security Light with Ultrasonic Sensor This project creates a security light system using an ultrasonic sensor, LED, buzzer, and Arduino. The system detects motion within a specified range and ...

Today we are adding one more Security Alarm in our list which is based on Ultrasonic Sensor. This Arduino Controlled Door alarm can be installed near the door to detect the presence of anybody at the ...

The connections diagram for the project is shown in Fig. 4. Fig. 4: Connections diagram for the Ultrasonic Liquid Level Monitoring System project. The ultrasonic sensor measures the distance between ...