Smart trash can is a smart trash can that uses sensors and electronic systems to operate. The workflow of the smart trash bin is that the user brings their hand close to the trash can to throw away the trash. The ultrasonic receives data and the servo is moved so that the lid opens. The user throws away the trash. When the hand is moved away, the lid closes again. The components used in the trash bin are microbit servo IOBIT ultrasonic jumper cable.