The project aimed at designing an X10-based power line communication system for home automation, oil level sensing, and transmitter-receiver systems. The X10 protocol was used to transfer data through power lines, while a float was used to sense the oil level in sinks. The engineering knowledge applied included electrical and electronics engineering principles, as well as journal articles and research papers. The project faced issues with security, distance limitations, and phase differences, but these were resolved by configuring manual security protocols, using long-range multipliers, and implementing passive phase couplers. The system was designed to be cost-effective, easy to implement, and retrofitted in the future.