Learn about digital circuits through a comprehensive lecture covering Gray codes and Karnaugh maps (K-maps). Explore topics such as counters, generating Gray codes, K-map minimization techniques, and mapping with don't cares. Dive into practical examples, including a full adder implementation and 5-input variable mapping. Gain insights into product-of-sum (POS) and sum-of-product (SOP) mapping methods, and understand the importance of proper connection mapping. This in-depth session provides essential knowledge for students and professionals in digital circuit design and analysis.