UNIT I Introduction Introduction to Mechatronics - Systems - Concepts of Mechatronics approach - Need for Mechatronics - Emerging areas of Mechatronics - Classification of Mechatronics. Sensors and Transducers: Static and dynamic Characteristics of Sensor, Potentiometers - LVDT - Capacitance sensors - Strain gauges - Eddy current sensor - Hall effect sensor - Temperature sensors - Light sensors. (Chapter - 1) UNIT II Microprocessor and Microcontroller Introduction - Architecture of 8085 - Pin Configuration - Addressing Modes - Instruction set, Timing diagram of 8085 - Concepts of 8051 microcontroller - Block diagram. (Chapter - 2) UNIT III Programmable Peripheral Interface Introduction - Architecture of 8255, Keyboard interfacing, LED display - interfacing, ADC and DAC interface, and Temperature Control - Stepper Motor Control - Traffic Control interface. (Chapter - 3) UNIT IV Programmable Logic Controller Introduction - Basic structure - Input and output processing - Programming - Mnemonics - Timers, counters and internal relays - Data handling - Selection of PLC. (Chapter - 4) UNIT V Actuators and Mechatronic System Design Types of Stepper and Servo motors - Construction - Working Principle - Advantages and Disadvantages. Design process - stages of design process - Traditional and Mechatronics design concepts - Case studies of Mechatronics systems - Pick and place Robot - Engine Management system - Automatic car park barrier. (Chapter - 5)