Virtual Plant Mood Display with Soil Moisture and Light Sensors 🌱💡

This Arduino sketch reads soil moisture and ambient light sensor data, and displays a cute animated face on a 16x2 I2C LCD screen to show the plant's "mood."
The face changes based on moisture and light levels, cycling through happy, sad, sleeping, and "dead" expressions.

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Features

• Reads soil moisture (analog pin A0) and light sensor (analog pin A1)
• Displays mood with 4-frame ASCII animations on an I2C 16x2 LCD (LiquidCrystal_I2C library)
• Animated faces for:
  • Happy 😊
  • Sad 😢
  • Sleeping 😴
  • Dead 💀
• Shows moisture and light percentage values on the bottom line
• Automatically animates the face every 600 ms

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Requirements

• Hardware:

  • Arduino board (Uno, Nano, Mega, etc.)
  • Soil moisture sensor (analog output)
  • Light sensor (analog output, e.g., photoresistor or photodiode)
  • 16x2 I2C LCD display (compatible with LiquidCrystal_I2C library)
  • Connecting wires and breadboard

• Software:

  • Arduino IDE (version 1.8.x or newer recommended)
  • Arduino LiquidCrystal_I2C library
    (Install via Library Manager: Sketch -> Include Library -> Manage Libraries -> search "LiquidCrystal_I2C")

• Power:

  • Suitable power supply for your Arduino and connected components

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Make sure your sensors output analog signals compatible with the Arduino analog input pins.

Wiring

• Connect soil moisture sensor output to A0
• Connect light sensor output to A1
• Connect the LCD via I2C to your Arduino (usually SDA to A4, SCL to A5 on Uno)

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