This module introduces microprocessors and microcontrollers with emphasis on their evolution, architecture, and role in renewable energy automation and control. Students explore microprocessor architecture and assembly programming, microcontroller peripherals, embedded C development, and real-time data acquisition. The course covers sensor integration, signal conditioning, ADC/DAC, communication interfaces, and power-efficient embedded design. Practical applications include solar PV data logging, wind turbine speed control, battery management systems, inverter and motor control, smart-grid communication, and MPPT algorithms. Learners gain hands-on skills in simulation, prototyping, PCB design, debugging, and testing using industry tools such as MPLAB, Keil, Arduino IDE, Proteus, and MATLAB/Simulink for embedded solutions.