Problem

The agriculture industry in island regions, such as the Turks and Caicos Islands, faces critical challenges that compound one another:

• Freshwater is a scarce and expensive resource
• Rainfall is irregular and seasonally unpredictable
• Few growers have access to intelligent irrigation infrastructure

The widely used traditional methods lead directly to four documented problems:

1. Water waste from manual or timer-based irrigation that ignores actual soil conditions
2. Inefficient crop management because growers cannot see what is happening in their fields between visits
3. A complete absence of real-time monitoring of soil moisture, ambient conditions, and tank levels
4. No predictive or automated control to coordinate irrigation with the weather or with the actual needs of the plants

The region required a smart, scalable, and cost-effective irrigation solution that could optimize water usage while improving crop productivity. Beyond that, the solution needed to be reproduced affordably by other growers, schools, and agricultural co-ops.

Several technical and operational challenges shaped the design of the project:

• Hardware constraints - Industrial-grade sensors and PLCs were not financially viable for this educational and small-farm context, so the TCICC team designed around commodity components without sacrificing reliability.
• IoT integration - TCICC carefully selected a lightweight protocol and a fault-tolerant connection strategy to reliably establish bidirectional communication between low-power ESP32 microcontrollers in the field and a central SCADA system.
• Real-time data handling - The system needed to ingest continuous streams of soil moisture, temperature, humidity, tank level, and flow data, validate for sensor faults, and historize, all without overwhelming the Gateway.
• UI/UX design - The system dashboard needed to be intuitive enough for non-technical farmers and operators while still exposing the diagnostic depth that engineering students and faculty need for teaching and maintenance.
• Environmental conditions - High humidity and saline air in the island climate posed real calibration and durability challenges for the capacitive soil-moisture sensors and any exposed electronics.
• Student learning curve - To bridge classroom theory with the practical realities of industrial SCADA, MQTT brokers, tag quality, and embedded firmware, TCICC required a deliberate teaching structure rather than ad-hoc problem solving.

Solution

The TCICC team developed the Island Smart Utility Platform as an integrated agribionics system that combines IoT sensing, lightweight messaging, and SCADA visualization. The system architecture was deliberately layered so each layer could be taught, replaced, or extended independently.

System Architecture:

• Edge devices - ESP32 microcontrollers read capacitive soil-moisture sensors, DHT22 temperature and humidity sensors, a tipping-bucket rain gauge, an ultrasonic tank-level sensor, and a flow meter.
• Communication - TCICC chose MQTT for its low overhead, native support for last-will-and-testament messages, and direct compatibility with the Ignition MQTT Engine Module.
• SCADA platform - Ignition 8.1.48 Perspective hosts the dashboard, the tag provider, historical logging, and the alert pipeline.
• Data processing - A real-time tag tree mirrors the field topology. Tag quality is propagated to the UI so that disconnected sensors are visibly distinguished from zero readings.
• User interface - A web-based, responsive Perspective view delivers the same experience to a desktop in the lab and a phone in the field.

Irrigation System Design:

• Two irrigation zones - TCICC configured and instantiated both zones as Ignition tag folders that mirror the physical layout:
• Zone 1 for vegetables
• Zone 2 for fruit trees
• Three smart sprinklers per zone - Individually addressable and individually controllable, each smart sprinkler is tied to a Boolean state tag that drives both the field solenoid and the dashboard button.
• Automated irrigation - Soil-moisture thresholds and recent rainfall trigger or inhibit irrigation respectively. The system includes a manual override option from the dashboard for testing and exception handling.

The Overview dashboard displays everything a grower or instructor needs at a glance:

• Real-time monitoring of soil moisture, temperature, humidity, water tank level, flow rate, and rainfall, each value bound to a tag with quality indication so disconnected sensors render as dashes rather than misleading zeroes.
• Interactive zone control with circular ON/OFF buttons for each of the six sprinklers, color-coded green for off and blue for on.
• System overview panel showing controller mode, count of active zones, next scheduled irrigation event, pump status, and master valve state, all rendered as semantic status pills.
• Alerts and notifications driven by tag values, including low-soil-moisture warnings on the affected zone.
• Water usage analytics in a seven-day rolling bar chart that highlights the current day in a stronger color.

The system UI/UX contains several notable features:

• Modern dark-themed SCADA dashboard with a deliberately limited palette so colored status indicators carry meaning rather than decoration.
• Card-based responsive layout built entirely from Perspective Flex Containers so the same view rearranges cleanly from desktop to mobile.
• Visual indicators use color-coded states consistently: green for healthy or off, blue for active or informational, amber for caution, and gray with dashes for unknown or disconnected.
• Mobile-friendly design enables remote monitoring directly from a field worker’s phone.

TCICC has planned enhancements for the system, including integration with weather forecasting APIs to pre-empt irrigation when rain is predicted, a per-crop irrigation profile library, and a simple SMS alert channel for growers without continuous internet access.

Result

The system impacted the agriculture industry in the Turks and Caicos Islands region in a number of ways:

• Student-faculty collaboration - This was a genuine interdisciplinary project bridging engineering theory and industrial practice, executed by students with faculty guidance rather than as a faculty-only research artifact.
• Agribionics innovation - This project introduced students to a multidisciplinary mindset with its deliberate fusion of biology (soil and crop data), electronics (ESP32 and sensors), and automation (SCADA and MQTT).
• Low-cost IoT solution - TCICC built this project using affordable, locally available ESP32 hardware so the architecture can be reproduced by other schools, co-ops, and growers in the region.
• Scalable architecture - TCICC structured the tag tree and Perspective views so additional zones, sprinklers, or sensor types can be added without redesigning the dashboard.
• Real-time decision making - Irrigation decisions reflect live environmental data, not fixed timers.
• Educational impact - The system serves as a live laboratory for IoT, SCADA, and automation learning, accessible to students throughout the academic year.

Deploying the Island Smart Utility Platform produced measurable benefits across operational, agricultural, and educational dimensions, including some outcomes that were not part of the original project goals.

Water Efficiency:

• Reduced water wastage by replacing fixed-schedule irrigation with automated control driven by real-time soil-moisture readings.
• Optimized irrigation schedules so that each zone receives water only when its soil moisture falls below a configured threshold and recent rainfall has not satisfied the demand.

Agricultural Benefits:

• Improved crop health monitoring through continuous visibility into soil and ambient conditions, enabling earlier intervention when readings drift.
• Better yield prediction capabilities as historized data accumulates and patterns emerge across growing cycles.

Operational Efficiency:

• Remote monitoring and control via web dashboard eliminated several daily site visits, reducing manual labor and travel.
• The platform became a centralized record of field operations, useful for compliance, training, and post-season analysis.

Educational Impact:

• Students gained hands-on experience with the same SCADA and IoT technologies used in industrial settings, in a setting where mistakes were safe and recoverable.
• The project enhanced practical understanding of Industry 4.0 concepts that had previously been abstract such as tag quality, edge-to-cloud messaging, alarm pipelines, and operator-centered design.

TCICC has documented this project to allow other schools and agricultural co-ops to reproduce it in full or in part, including the MQTT topic map, the tag structure, and the Perspective view source.

Anyone can reproduce a similar two-zone deployment for under $100 in commodity parts (ESP32, soil-moisture sensors, solenoid valves, a small pump, and a Raspberry Pi running Mosquitto), plus the free Ignition Maker Edition license for educational use. This affordability is intentional and central to the college’s educational mission.

The same patterns running this two-zone agribionics demonstrator can scale to hundreds of zones in commercial operations, so any student who learns the system through this documentation can easily apply that knowledge to commissioning much larger industrial deployments.

Project Team

TCICC developed the Island Smart Utility Platform through a collaborative effort between faculty leads and student engineers, with a deliberate emphasis on giving students ownership of real components rather than rehearsing exercises.

The project team included:

• Dr. P. Vijay Daniel, faculty
• Mr. Menelik Astwood, faculty
• Mr. Derval Pickersgill, faculty
• Mr. Andwico Smith, student
• Mr. Seth Carter, student
• Mr. Woodley Jean-Louis, student

The project served as a practical learning platform that enabled students to work on real-world industrial technologies including SCADA, MQTT messaging, embedded firmware, sensor calibration, and operator-facing UI design. Faculty members guided architecture and review while students drove the day-to-day implementation.

Project Scope

• Start Date: January 2026

• Deploy Date: August 2026

• Tags: 20

• Screens: 1

• Clients: 3

• Alarms: 3

• Devices: 1 ESP32 microcontroller; 2 capacitive soil-moisture sensors; 1 DHT22 temperature/humidity sensor; 1 ultrasonic tank-level sensor; 1 flow meter; 1 tipping-bucket rain gauge; 6 solenoid valves (one per sprinkler); 1 12V pump

• Architecture: Standard

• Databases: Ignition's internal SQLite tag historian

• Historical data logged: 5 tags historized

• Number of people on team: 6