The Sprout Saver

The Sprout Saver is an IoT-based automated plant care system designed to monitor environmental conditions and autonomously water plants using cloud-connected sensors and real-time data processing.

Features

• Real-time monitoring of temperature, humidity, soil moisture, and UV light levels
• Automated plant watering triggered by soil moisture thresholds
• Secure telemetry transmission from ESP32 to Azure IoT Hub
• Real-time data processing using Azure Stream Analytics
• Live data visualization and historical trend analysis via Power BI dashboards
• Modular sensor architecture allowing additional sensors to be added easily

Tech Stack

Hardware

• Lilygo ESP32 T-Display
• DHT20 temperature & humidity sensor
• Adafruit STEMMA Soil Sensor - I2C Capacitive Moisture Sensor
• Adafruit Peristaltic Liquid Pump
• Adafruit Analog UV Light Sensor Breakout - GUVA-S12SD
• N-Channel Power Mosfet

Languages

• C++

Framework

• Arduino Framework (ESP32)

Libraries

• ArduinoJson
• DHT20 sensor library
• Adafruit seesaw
• ESP32 WiFi / HTTP libraries

Cloud & Data

• Azure IoT Hub
• Azure Stream Analytics
• Power BI

Future Improvements

• Mobile notifications for critical moisture levels
• Machine learning–based watering predictions
• Enclosure design for outdoor deployment

Notes

This project was completed as a team project. Original repository maintained by @chrislnguye8.

My contributions include:

• Integrating environmental sensors with the ESP32
• Implementing JSON-based telemetry for cloud ingestion
• Assisting with system testing and validation