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8bit Microcontroller based Water Level controller

In the quest for efficient resource management, controlling water levels in various applications stands out as a critical task. Whether it's maintaining water levels in tanks, reservoirs, or irrigation systems, precision and automation play pivotal roles. In this blog, we delve into the realm of water level control systems, exploring the intricacies of building one using 8-bit microcontrollers.

Understanding Water Level Control Systems

Water level control systems are indispensable in numerous industries and domestic settings. Their primary function is to maintain optimal water levels, preventing overflow or depletion. Traditionally, this task was manually executed, often leading to inefficiencies and errors. However, with advancements in technology, automated water level control systems have become commonplace, offering precision and reliability.

The Role of 8-Bit Microcontrollers

At the heart of an automated water level control system lies a microcontroller, a compact yet powerful computing device capable of executing predefined tasks. While modern microcontrollers come in various architectures and capabilities, 8-bit microcontrollers remain popular choices for simple to moderately complex applications due to their cost-effectiveness, simplicity, and ease of use.

Advantages of 8-Bit Microcontroller-Based Systems

  1. Cost-Effective: 8-bit microcontrollers are economical solutions for simple automation tasks, making them ideal for water level control systems.
  2. Reliability: Despite their simplicity, 8-bit microcontrollers offer robust performance, ensuring reliable operation even in harsh environments.
  3. Ease of Implementation: With a plethora of resources, tutorials, and libraries available, building and programming 8-bit microcontroller-based systems is relatively straightforward, even for beginners.
  4. Low Power Consumption: 8-bit microcontrollers consume minimal power, making them suitable for battery-powered applications or locations with limited power availability.

Advantages and benefits

  1. Multiple Sensor Inputs: Top water tank low mid and high level sensors, dry run sensor for motor protection and sump tank sensor, providing accurate data for precise control.
  2. Relay Control: Ability to control pumps, valves, or other devices using relays based on the water level readings, ensuring optimal water management.
  3. Adjustable Set Points: Allow users to set custom high and low water level thresholds based on their specific requirements, providing flexibility in water level management.
  4. Sensor fault Detection and Indication: Incorporate features for sensor fault detection and Indication to identify and troubleshoot issues such as sensor malfunctions or communication errors, ensuring the reliability and uptime of the system.
  5. Power Efficiency: Implement power-saving features to minimize power consumption, extending the lifespan.
  6. This controller will use for both submersible motor with starter and normal motors by selecting a jumper setting.


  1.  Small in design with all in one function;
  2. Auto / manual mode selection;
  3. Submersible and normal motor selection;
  4. Sump tank water detection and Dry run protection available;
  5. Power supply included;
  6. Top tank water level sensor fault detection;
  7. etc.

Submersible motor connection diagram

Normal motor connection diagram

To buy this water level controller board click the following link or contact directly Purchase link

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