This Arduino-based system is designed to monitor soil moisture and light levels for optimal plant care. It comprises a sensor unit for data acquisition and a display unit for user interaction.

The Remote Plant Monitoring System features:

• Soil Moisture Sensing: Using a custom sensor made from nails.
• Light Level Monitoring: Employing a photoresistor.
• Wireless Communication: 433MHz RF modules transmit data between units.
• User-Friendly Interface: A 7-segment display alternates between moisture and light readings with LED indicators.

• Arduino Uno: Manages sensor readings and wireless communication.
• Sensors:
  • Soil Moisture Sensor (DIY using nails)
  • Light Sensor (Photoresistor)
• RF Transmission Module: 433MHz

• Arduino Uno: Receives and processes data.
• Display: 7-Segment LED
• Indicators: Blue and Yellow LEDs
• RF Reception Module: 433MHz

• Arduino IDE

• RadioHead Library

• Schematics

• Arduino Uno
  • A0: Connected to one nail of the soil moisture sensor.
  • GND: Connected to the other nail of the soil moisture sensor.
  • A1: Connected to one leg of the photoresistor.
  • 5V: Connected to the other leg of the photoresistor through a 10kΩ resistor.
  • Digital Pins (As per RF module requirements): Connected to the 433MHz RF transmission module.

• Arduino Uno
  • Pins 2-8: Connected to the 7-segment display.
  • Pin 12: Connected to the blue LED through a 220Ω resistor.
  • Pin 10: Connected to the yellow LED through a 220Ω resistor.
  • GND: Connected to the common ground of the LEDs.
  • Digital Pins (As per RF module requirements): Connected to the 433MHz RF reception module.