This document describes an automatic water level controller project that uses a NE555 timer IC to control a relay and pump to prevent overflow and waste. It aims to allow sustainable water use and reduce electricity waste. The system includes a transformer, full-wave rectifier, regulator IC, transistors, resistors, buzzer, LEDs, relay, and connecting wires. When the water level reaches certain points, the LEDs will indicate the level and the relay will switch the pump on or off to maintain the water level automatically. This helps efficiently use water resources.