<p>➀ Arduino Opta is a secure and durable micro PLC designed for industrial and building automation, featuring seamless integration with existing systems and Arduino ecosystem devices.</p><p>➁ It offers key capabilities like Modbus communication, edge decision-making via dual-core STM32H747XI processor, multiple connectivity options (Ethernet/RS485/Wi-Fi), encrypted data security, and DIN rail compatibility.</p><p>➂ The device supports three variants (Lite/RS485/WiFi) and expandable modules for industrial applications, enabling retrofitting legacy equipment, predictive maintenance, and IoT-enabled automation with Arduino Cloud integration.</p>