The Design and Implementation of the Smart Trash Can based on the Internet of Things

Abstract

Choosing MSP430F149 as the main control chip and using the human body sensor module, infrared ranging module, motor, ultrasonic module, GSM module as peripheral components, the Smart trash can proposed in this paper can realize automatic garbage classification and garbage overflow detection. The human body infrared sensor module senses the approach of the human body in real time, triggers the Single-Chip Microcomputer to work, and opens the lid of the trash can; The entry of garbage is monitored in real time, responding to the Single-Chip Microcomputer driving the LDC1000 metal sensor for metal detection; The purpose of garbage classification could be achieved through the forward and reverse rotation of the motor; After the motor returns to its original position, the ultrasonic module installed in the middle of the trash can is used to detect whether the garbage is overflowed. The GSM module determines whether to send a message according to the ultrasonic detection. The test of the device shows that the control effect is good and the expected design goal is achieved.