Industrial Shields use cases

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Industrial Shields Arduino PLCs, ESP32 PLCs, Raspberry Pi PLCs, GateBerry gateways, TouchBerry Pi panel PCs and moduleX I/O modules are used in real industrial and infrastructure projects across sectors including HVAC, building automation, smart cities, warehousing, food and beverage, agriculture and industrial machinery. The following use cases document how these products are applied, which hardware and communication protocols are involved, and what technical problems each installation solves.

HVAC control and monitoring with Ardbox PLC and TouchBerry Pi

Automated HVAC system with PID temperature control and relay output

An automated HVAC control system reads indoor and outdoor temperature sensors and applies a PID control loop to regulate the air conditioning relay. The system supports day and night scheduling, adaptive setpoints and automatic relay activation based on real-time temperature data. The Ardbox Relay PLC handles all field I/O and relay switching, while the control logic runs entirely on the PLC without dependency on the HMI panel.

Remote HVAC supervision and alarm management via SCADA on Raspberry Pi

A SCADA interface running on the TouchBerry Pi 10.1" Panel PC gives operators full visibility of the HVAC system: current indoor and outdoor temperatures, system status, active alarms and PID parameters for day and night modes. The panel PC runs Linux (Raspberry Pi OS), which allows open SCADA software to be deployed directly on the industrial display without additional servers.

I2C communication between Ardbox Relay PLC and TouchBerry Pi Panel PC

The Ardbox Relay PLC operates as an I2C slave. The TouchBerry Pi Panel PC acts as I2C master and sends relay commands based on operator input or SCADA automation logic. The I2C bus allows up to 128 slave devices to be connected to a single TouchBerry Pi, making the architecture scalable for larger building automation installations.

Products

Sector

Building automation / HVAC

Full case study

HVAC System activated through a SCADA

Automatic car wash automation and monitoring with Arduino PLC

Automated car wash cycle control with sequential logic and sensor inputs

An Arduino PLC manages the full automation cycle of an industrial car wash installation: sequential activation of washing phases, water flow control, detergent dosing and drying. The PLC reads position sensors and flow meters to control the timing and sequencing of each stage without manual intervention.

Remote monitoring and fault detection for car wash operations

The system provides remote monitoring of the installation status, active faults and operational parameters. Operators can access system data remotely via Ethernet, reducing the need for on-site visits and allowing faster response to equipment failures.

Products

Sector

Industrial services / car wash automation

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Automatic car wash — control and monitoring with Arduino PLC

AI-based access control for office buildings with Raspberry Pi PLC

Facial recognition and presence detection for automated building access

An AI camera with an integrated presence sensor detects and captures facial images of people approaching building entrances and floor access points. The image is sent to a system that compares it against a database of authorised faces stored on a local server. If the person is recognised, the door mechanism is activated automatically. If not, an alarm is triggered and security officers are notified.

Raspberry Pi PLC as the central industrial controller for access control logic

A Raspberry Pi PLC coordinates the full access control workflow: receiving image data from the AI camera via sockets, querying the authorisation database, activating door mechanisms and logging access events. The system includes an internal database for offline operation when internet connectivity is unavailable.

Products

Communication

Sector

Building security / access control / AI integration

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Access control system with AI

Animal feeding automation with M-Duino PLC, load cells and MQTT

Automated feed dispensing with load cell sensors and Arduino PLC logic

An M-Duino Arduino PLC controls an automated animal feeding system for livestock farms, horse stables and cattle facilities. Load cell sensors installed in each feeder measure the weight of food dispensed and send data to the PLC. The controller processes this data and activates the feeding system to dispense the correct amount of food, medicine or cleaning fluid according to predefined schedules.

Remote monitoring and MQTT data integration via Panel PC running Node-RED

All feeding data is sent via MQTT to a broker running on a Raspberry Pi based Panel PC, where Node-RED is used to monitor, visualise and analyse the information. The system is accessible remotely via Ethernet and VPN, allowing farm managers to check feeding status, adjust parameters and receive alerts from anywhere.

Products

Communication

Sector

Agriculture / livestock automation

Full case study

Automate animal feeding — control and monitoring with Arduino PLC

Wine fermentation quality control with wireless temperature sensors and Modbus

Automated fermentation temperature monitoring with WiFi and LoRa wireless sensors

SI-WINE is a wine fermentation control software by Sira that runs on the TouchBerry Pi Panel PC. Wireless temperature sensors inserted inside fermentation tanks monitor temperature continuously via WiFi or LoRa, transmitting readings every two minutes around the clock. Food-grade stainless steel probes allow direct contact with the wine without contamination risk.

Automated cooling control via solenoid valves and refrigeration machine management

The TouchBerry Pi Panel PC running SI-WINE manages solenoid valves on the cooling jackets of each tank and coordinates the refrigeration machine to keep fermentation temperatures within the required range. An energy consumption monitor tracks the electricity cost of the fermentation process.

Modbus integration, SCADA compatibility and multi-channel alert system

The system is Modbus RTU compatible and integrates with third-party SCADA systems. One unit supports up to 32 sensor devices. Alerts are sent automatically via email, Telegram or WhatsApp if a fault is detected. Full temperature traceability is exported as CSV.

Products

Communication

Sector

Food and beverage / wine production

Full case study

Ensuring wine quality with SI-WINE by Sira

Conveyor belt motor control with Arduino PLC and frequency inverter

Asynchronous motor speed control via RS485 frequency inverter and Arduino PLC

An Arduino PLC controls the speed and operation of a conveyor belt by communicating with a frequency inverter over RS485. The PLC sends speed commands to the inverter, which drives the asynchronous motor at the required speed for each stage of the conveyor process.

Industrial Arduino PLC as the central controller for conveyor automation

The Arduino PLC manages the full conveyor control logic: start and stop sequences, speed ramp-up and ramp-down, emergency stop handling and integration with upstream and downstream process signals. Programmed with Arduino IDE.

Products

Communication

Sector

Manufacturing / conveyor and material handling

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Conveyor belt control with Arduino PLC and frequency inverter

Automated warehouse management and control with Arduino PLC

Warehouse automation with Arduino PLC: inventory control, conveyor management and sensor integration

An M-Duino Arduino PLC manages the automation of an industrial warehouse: controlling conveyor belts, activating sorting mechanisms, reading sensors and managing storage and retrieval sequences through digital and analog I/O.

Remote monitoring of warehouse operations via Ethernet

The Arduino PLC communicates via Ethernet to a supervisory system that monitors warehouse status, active processes and fault conditions in real time.

Products

Communication

Sector

Warehousing and logistics / industrial automation

Full case study

Automated warehouse with Arduino PLC

Industrial machinery retrofit with ESP32 PLC: food packaging line digitalisation

ESP32 PLC retrofit of an ageing food packaging line with limited connectivity

A food packaging line had reached the limits of its existing control system: insufficient processing capacity, no connectivity, and no ability to integrate with other industrial systems. The retrofit replaced the old controller with an Industrial Shields ESP32 PLC, enabling integration of sensors, actuators and control devices across the full packaging line.

Production data acquisition at line, phase and product level for OEE measurement

The ESP32 PLC collects production data at four levels: overall production, line performance, phase or machine within the line, and individual product behaviour. This feeds into a Business Intelligence platform, giving production managers real-time visibility of line speeds, stoppages, energy consumption and yield by shift.

Node-RED and Arduino IDE integration for zero-licence-cost system connectivity

The retrofit was implemented using Node-RED and the Arduino IDE. The open nature of the ESP32 PLC and its compatibility with these tools made integration with the customer's existing systems straightforward and eliminated software licence costs.

Products

Communication

Sector

Food and beverage / industrial machinery retrofit / Industry 4.0

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Industrial machinery retrofit with ESP32 PLC

Automated warehouse inventory and logistics control with ESP32 PLC

ESP32 PLC for connected warehouse automation with native WiFi and Ethernet

An ESP32 PLC manages automated warehouse operations — inventory tracking, conveyor control, storage and retrieval sequences — with the added benefit of native WiFi connectivity. The ESP32's dual-core architecture allows the control logic and communications to run independently.

Wireless and wired connectivity for distributed warehouse monitoring

The ESP32 PLC communicates with the warehouse management system via Ethernet or WiFi, transmitting real-time data on inventory levels, conveyor status and process events.

Products

Communication

Sector

Warehousing and logistics / connected industrial automation

Full case study

Automated warehouse with ESP32 PLC