Arduino Opta WiFi: Industrial IoT Micro PLC
The Arduino Opta WiFi is a high-end micro PLC (Programmable Logic Controller) designed to bridge the gap between traditional industrial automation and the modern IoT landscape. Manufactured by Arduino in partnership with Finder, a veteran in industrial switching technology, the Opta WiFi serves as a gateway for professionals to scale projects using the familiar Arduino ecosystem.
Functionally, its Wi-Fi capabilities enable seamless integration with the Arduino Cloud and third-party services, allowing real-time remote monitoring, data visualization, and secure over-the-air (OTA) firmware updates. By supporting both the standard IEC 61131-3 PLC languages (such as Ladder Logic and Structured Text) and traditional Arduino sketches, it lowers the barrier to entry for IoT integration in factory settings.
The device is compatible with a wide range of industrial sensors and actuators through its configurable inputs and high-power relay outputs. Â Requirement-wise, it operates on a 12-24 V DC supply and is designed for DIN rail mounting, ensuring it fits into standard industrial control panels. This fusion of open-source flexibility and industrial-grade reliability makes it a versatile tool for predictive maintenance and real-time control.
Technical Specifications
| Feature | Specification |
| Processor | STM32H747XI Dual ARM® Cortex®: Cortex-M7 up to 480 MHz, Cortex-M4 up to 240 MHz |
| Input | 8x configurable digital / analog (0-10V) input |
| Output | 4x relays (250 V AC – 10 A) |
| Memory | 1MB RAM (programming), 2MB internal + 16MB Flash QSPI |
| Connectivity | 10/100 Ethernet, USB-C, Wi-Fi, Bluetooth® Low Energy, RS485 half duplex |
| Supply Voltage | 12…24 V DC |
| IP Protection | IP20 |
| RTC | Typical 10-day power retention at 25°C |
| Operating Temperature | -20 °C to +50 °C (-4°F to 122°F) |
| Security | ATECC608B Secure |
Pricing and Distribution
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Current Price: $199.00
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Distribution Partners: While available directly through the Arduino Online Shop, Arduino products are also globally distributed through various authorized distributors.
