An autonomous robot that detects and avoids obstacles using Arduino Uno, Ultrasonic Sensor (HC-SR04), Servo Motor, and L298N Motor Driver. The robot continuously scans its surroundings and makes ...

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Abstract: This letter presents a real-time bed-exit alarm system using ultrasonic sensors, infrared (IR) sensors, and an accelerometer. The ultrasonic sensors detect the elderly in bed; the IR sensors ...

Abstract: Traveling wave ultrasonic motors (TWUM) are a promising type of piezoelectric transducers, which are based on the friction transmission of mechanical propagating waves. These waves are ...