Arduino Opta Lite
Entry-level industrial micro PLC with STM32H747 dual-core Cortex-M7/M4, Ethernet, 4\u00d72.3kW relays, Modbus TCP, hardware security, DIN rail mount, and IEC 61131-3 PLC programming — the affordable path to Arduino-powered industrial control.
$127.00
Tap any value to browse matching devices
Specifications
Certifications
Components
STM32H747XI with Cortex-M7 at 480MHz and Cortex-M4 at 240MHz for real-time PLC control.
Bus Interfaces
GPIO Map
Overview
The Arduino Opta Lite is the most affordable entry point to Arduino's industrial PLC lineup. It shares the same STM32H747XI dual-core processor and robust industrial enclosure as the Opta WiFi, but trades WiFi and Bluetooth for a lower price, making it ideal for wired industrial installations where Ethernet is the primary network.
The Opta Lite includes Ethernet connectivity with Modbus TCP support, four 2.3kW relay outputs for direct AC load switching, 8 configurable analog/digital inputs, and USB-C for programming. Hardware security via the onboard secure element ensures encrypted communication, and the DIN rail mounting fits standard industrial panels.
Supporting IEC 61131-3 PLC languages (Ladder Logic, Function Block Diagram) alongside the Arduino IDE, the Opta Lite bridges the gap between traditional PLCs and modern IoT development. CE and UL certified for deployment in production environments.
Use Cases
3Industrial Automation
Boards designed or suitable for industrial control, automation, and embedded systems in harsh environments.
Smart Switch
Build WiFi or BLE controlled relay boards for switching lights, appliances, and HVAC.
Industrial IoT
Build robust industrial IoT solutions using CAN bus, RS-485, Modbus, and wired Ethernet interfaces.
Resources
Explore more of the directory — popular use cases, firmware, and specs to browse next.
