Greenhouse Automation System | Automated Greenhouse


The discussed project is a cost-effective and user-friendly Greenhouse Automation System that continuously monitors climatic parameters, optimizes conditions, and eliminates the need for manual adjustment.

Project Information

The topic of discussion is a fundamental embedded system known as the “Greenhouse Automation System | Automated Greenhouse.” It aims to monitor and record various climatic parameters within a greenhouse, optimizing the cultivation process, increasing productivity, and minimizing human effort and issues. The project utilizes affordable components such as sensors, microcontrollers, ADC (Analog to Digital Converter), and actuators.

Under normal conditions, the system remains active, continuously monitoring the climate within the greenhouse. When sensors detect changes in temperature or other monitored factors, the microcontroller is activated and reads the data collected from the sensors. The ADC converts the analog data into a digital format for further processing. The microcontroller then triggers relays to adjust the environmental conditions based on predefined threshold values.

The integration of a microcontroller, LCD display, and continuous data logging makes this project cost-effective and user-friendly. It eliminates the need for manual adjustment of environmental conditions and provides a flexible system for greenhouse management.

Additional Information


  • Resistor (all ¼-watt, ± 5% Carbon)
  • R1 = 690Ω
  • R2, R4 = 1 KΩ
  • R3 = 10 KΩ
  • R5 = 3.9 KΩ
  • R6 = 100Ω
  • VR1 – VR3 = 10 KΩ
  • Capacitors
  • C1 = 2.2 nF (Ceramic Disc)
  • C2 = 0.01 µF (Ceramic Disc)
  • C3, C4 = 30 pF (Ceramic Disc)
  • C5 = 10 µF (Ceramic Disc)
  • Semiconductors
  • IC1 = NE555 (Timer IC)
  • IC2 = ADC0809 (Analog to Digital Converter IC)
  • IC3 = P89V51RD2 (Microcontroller)
  • IC4 = ULN2803 (Darlington transistor array)
  • IC5 = LM35 (Temperature Sensor)
  • IC6 = µA741 (Operational Amplifier)
  • T1 = 2N2222 (General Purpose NPN transistor)
  • Miscellaneous
  • XTAL1 = 11.0593MHz
  • SW1 = Push-to-on Switch
  • RL1 – RL4 = 12V Relay
  • LCD1 = 16*2 LCD
  • LDR


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