This document discusses applications of mechatronics and provides examples. It begins by defining mechatronics as an interdisciplinary field combining mechanical engineering, electrical engineering, and computer science. It then lists some common mechatronics applications that range from micro-level systems like MEMS to macro applications like cars, trains, and aircraft. The document proceeds to provide specific examples of interfacing common mechatronics components like DC motors, stepper motors, and temperature sensors to a PIC microcontroller. It includes circuit diagrams and discusses half and full stepping modes for controlling stepper motors.