
Arduino Opta RS485
The Arduino Opta RS485 is a secure, industrial-grade micro PLC with IoT capabilities, designed in partnership with Finder. It combines the ease of the Arduino ecosystem with professional PLC functionality, supporting both Arduino sketches and standard IEC-61131-3 PLC languages including Ladder Diagram, Function Block Diagram, Structured Text, and more.
Powered by a dual-core STM32H747XI (Cortex-M7 at 480 MHz + Cortex-M4 at 240 MHz), it handles real-time control, monitoring, and predictive maintenance applications. The RS485 variant features Ethernet, USB-C, and RS485 half-duplex connectivity for versatile industrial communication.
Key Features
- Dual-Core Processor – STM32H747XI with Cortex-M7 (480 MHz) and Cortex-M4 (240 MHz)
- 8 Configurable Inputs – Digital or analogue (0–10V)
- 4 Relay Outputs – Rated at 250V AC, 10A
- RS485 Half Duplex – Industrial serial communication
- Ethernet – 10/100 Mbps (TCP/IP or Modbus TCP)
- USB-C Programming Port – For firmware upload and configuration
- Multi-Language Support – Arduino IDE, Ladder Diagram (LD), Function Block Diagram (FBD), Sequential Function Chart (SFC), Structured Text (ST), Instruction List (IL)
- Hardware Security – ATECC608B secure element with X.509 compliance
- OTA Updates – Secure over-the-air firmware updates via Arduino Cloud
- Real-Time Clock – ~10-day power retention at 25°C with NTP sync via Ethernet
Specifications
- Processor – STM32H747XI Dual ARM Cortex-M7 + M4
- Memory – 1 MB RAM, 2 MB internal flash + 16 MB QSPI flash
- Inputs – 8× configurable digital/analogue (0–10V)
- Outputs – 4× relays (250V AC, 10A)
- Connectivity – 10/100 Ethernet, USB-C, RS485 half duplex
- Supply Voltage – 12–24V DC
- Operating Temperature – -20°C to +50°C
- IP Rating – IP20
- Dimensions – 69 × 80 × 90 mm
- Weight – 210 g
- Certifications – cULus listed, ENEC, CE
Ideal For
- Industrial automation and process control
- Building management systems
- Predictive maintenance and monitoring
- Modbus TCP/RS485 integration projects
Package Contents
- 1× Arduino Opta RS485
Resources
Original: $460.98
-70%$460.98
$138.29Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Arduino Opta RS485 is a secure, industrial-grade micro PLC with IoT capabilities, designed in partnership with Finder. It combines the ease of the Arduino ecosystem with professional PLC functionality, supporting both Arduino sketches and standard IEC-61131-3 PLC languages including Ladder Diagram, Function Block Diagram, Structured Text, and more.
Powered by a dual-core STM32H747XI (Cortex-M7 at 480 MHz + Cortex-M4 at 240 MHz), it handles real-time control, monitoring, and predictive maintenance applications. The RS485 variant features Ethernet, USB-C, and RS485 half-duplex connectivity for versatile industrial communication.
Key Features
- Dual-Core Processor – STM32H747XI with Cortex-M7 (480 MHz) and Cortex-M4 (240 MHz)
- 8 Configurable Inputs – Digital or analogue (0–10V)
- 4 Relay Outputs – Rated at 250V AC, 10A
- RS485 Half Duplex – Industrial serial communication
- Ethernet – 10/100 Mbps (TCP/IP or Modbus TCP)
- USB-C Programming Port – For firmware upload and configuration
- Multi-Language Support – Arduino IDE, Ladder Diagram (LD), Function Block Diagram (FBD), Sequential Function Chart (SFC), Structured Text (ST), Instruction List (IL)
- Hardware Security – ATECC608B secure element with X.509 compliance
- OTA Updates – Secure over-the-air firmware updates via Arduino Cloud
- Real-Time Clock – ~10-day power retention at 25°C with NTP sync via Ethernet
Specifications
- Processor – STM32H747XI Dual ARM Cortex-M7 + M4
- Memory – 1 MB RAM, 2 MB internal flash + 16 MB QSPI flash
- Inputs – 8× configurable digital/analogue (0–10V)
- Outputs – 4× relays (250V AC, 10A)
- Connectivity – 10/100 Ethernet, USB-C, RS485 half duplex
- Supply Voltage – 12–24V DC
- Operating Temperature – -20°C to +50°C
- IP Rating – IP20
- Dimensions – 69 × 80 × 90 mm
- Weight – 210 g
- Certifications – cULus listed, ENEC, CE
Ideal For
- Industrial automation and process control
- Building management systems
- Predictive maintenance and monitoring
- Modbus TCP/RS485 integration projects
Package Contents
- 1× Arduino Opta RS485























