A Modular Portable Soil Diagnostic Device with Real-Time Data Transmission for Agricultural Nurseries.

Abstract

A modular, portable soil diagnostic device for rapid on-site analysis of seedling growing conditions. The device comprises a 3D-printed ergonomic casing (1) housing a rechargeable 9V battery (2) as a power source, an ESP-32 microcontroller (3) with integrated Wi-Fi and Bluetooth connectivity for real-time data transmission, and a circular LCD display screen (4) for immediate visual feedback. A capacitive soil moisture sensor probe (5) is connected to the device for measuring soil moisture content. The apparatus is characterized by its modular design, enabling future integration of additional sensor types, and its internet connectivity for real-time data synchronization with cloud-based software platforms. The device provides rapid, field-based diagnostics without requiring laboratory infrastructure.