Hydroponic gardening is an efficient method of growing plants without soil, where plants receive nutrients directly through water. This technique allows plants to grow faster and healthier, as they are provided with an optimal amount of nutrients and water. However, traditional hydroponic systems require significant setup effort, continuous monitoring, and maintenance to ensure proper growing conditions. The proposed system is an automated hydroponic monitoring solution designed to simplify plant cultivation. It continuously monitors important parameters such as water level, pH level, temperature, and humidity using sensors. These values are displayed on an LCD module for real-time observation and are also uploaded to the ThingSpeak cloud platform using an ESP8266 Wi-Fi module for remote monitoring. The system is powered by a solar-based battery management unit. Solar energy is harvested using a solar panel and stored in a rechargeable battery through a charging circuit controlled by a relay. The system continuously monitors both solar panel voltage and battery voltage. Based on these readings, it automatically connects or disconnects the charging process to ensure efficient and safe battery operation. The core controller of the system is the Arduino UNO microcontroller, programmed using Embedded C. It collects sensor data, processes it, controls system operations, and manages communication with the cloud platform. The main objective of this project is to develop an intelligent hydroponic nutrition monitoring system integrated with a solar-powered battery management system, ensuring efficient, sustainable, and automated plant growth.    

Features of hydroponic System:  

• Monitors water parameters: pH and water level
• Measures environmental conditions: temperature and humidity
• Automatic cooling fan and bulb control based on temperature
• Water level-based motor control
• Relay-based automatic device switching
• LCD display for real-time alerts and data
• Manual control option for water tank motor

Features of BMS system:

• 12V, 1A battery management with SOC (State of Charge) estimation
• Operates in three modes:
  • Mode 1: Thermal protection (battery isolation during overheating)
  • Mode 2: Voltage monitoring with automatic relay switching
  • Mode 3: SOC estimation using microcontroller
• Temperature-based battery monitoring system
• Wi-Fi enabled data upload to ThingSpeak cloud

The major building blocks of this project are:

• Solar panel.
• Charging circuit.
• Rechargeable battery.
• Arduino UNO atmega328p microcontroller.
• PH sensor.
• Dht11 sensor.
• Water level sensor.
• LCD display.
• Relays.
• DC water motor.
• Cooling fan14500
• 12v, 1amp Battery.
• DC water motors.
• LM35Temperature sensor.
• Voltage sensors.
• ESP8266 WI-FI Module.

      Software’s used in the project:  

1. ARDUINO IDE compiler for Embedded C programming.
2. Express SCH for Circuit design.
3. Thingspeak technology.

     

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