Main Objective:
The main objective of the Water Level Controller PCB Board is to design and develop an automatic water monitoring and pump control system that maintains proper water levels in overhead tanks or reservoirs. This project helps prevent overflow, avoids dry running of pumps, conserves water, and reduces manual supervision. By integrating a microcontroller such as ESP32 with level sensing circuits on a custom PCB, the system ensures reliable and efficient water management for residential and industrial applications.
Project Requirements:
The Water Level Controller requires both hardware and software components working together as a complete embedded system.
Hardware requirements include a microcontroller (ESP32 or Arduino), water level sensors (float or conductive type), relay module for pump control, custom PCB board, regulated power supply, buzzer or LED indicators, and screw terminals for tank and motor connections.
Software requirements include embedded C or Arduino programming, sensor monitoring logic, automatic pump control algorithm, overflow protection programming, and dry run safety protection. Proper PCB routing and electrical isolation between high voltage pump circuits and low voltage control circuits are essential for safety and long-term reliability.
Input:
The input to the system comes from water level sensors installed inside the water tank. These sensors detect different stages such as low level, medium level, high level, and overflow condition. The signals are connected to the microcontroller input pins through proper conditioning circuits. The controller continuously monitors these signals and processes them based on predefined program logic.
Output:
The output of the Water Level Controller automatically controls the water pump. When the water level drops to the low level, the pump turns ON. When the tank reaches the high level, the pump turns OFF. If overflow is detected, a buzzer or alarm is activated. In dry run conditions, pump protection logic disables the motor to prevent damage. An optional LCD display can show real-time tank status such as Tank Empty, Tank Filling, Tank Full, and Motor ON or OFF.
Conclusion:
The Water Level Controller PCB Board is an efficient and scalable solution for automatic water management. With real-time monitoring capability, programmable control, and professional PCB design, the system reduces water wastage and protects pumping equipment. This intelligent control system is suitable for homes, apartments, industries, and agricultural irrigation systems where reliable water monitoring is required.