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The Official Arduino OPTA RS485 is a professional-grade micro-PLC (Programmable Logic Controller) tailored for Industrial IoT applications.
Developed in collaboration with Finder, a leader in industrial and building automation, the OPTA offers a reliable, scalable solution for automation professionals.
It seamlessly supports both traditional Arduino sketches and standard PLC programming languages such as Ladder Logic Diagram (LD) and Function Block Diagram (FBD), making it accessible to both embedded developers and PLC engineers.
Powered by a robust STM32H747XI dual-core Cortex®-M7 and M4 MCU, it is capable of handling real-time control tasks, monitoring systems, and running predictive maintenance operations.
Designed with durability and security in mind, the OPTA RS485 features OTA firmware update capabilities and robust data protection through an onboard secure element compliant with the X.509 standard, ensuring secure communication from edge to cloud.
| Parameter | Details |
|---|---|
| Item Type | Development Board |
| Board Type | Opta |
| Model Name | ARDUINO OPTA RS485 AFX00001 |
| Processor | STM32H747XI Dual ARM® Cortex® with M4 core up to 240 MHz, M7 core up to 480 MHz |
| RAM | 1 MB |
| Flash Memory | 16 MB |
| Internal Memory | 2 MB |
| Connectivity | 10/100 Ethernet (TCP/IP, Modbus TCP), USB-C |
| Input Voltage (VAC) | 0–10 V |
| Output Voltage (VAC) | Up to 250 V |
| Minimum Supply Voltage | 24 V DC |
| RTC | 10-day retention at 25°C; NTP sync via Ethernet |
| Programming Software | Arduino IDE, IEC-61131-3 (LD, FBD, SFC, ST, IL) |
| Security | ATECC608B Secure Element with X.509 compliance |
| Operating Temperature | -20°C to +50°C |
| Certifications | cULus listed, ENEC, CE |
| IP Rating | IP20 |
For the full technical documentation, tutorials and much more, visit Arduino Docs
This product comes with a 1-year manufacturer warranty from the date of purchase, covering manufacturing defects only.
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.
