Micro PLC enables IIoT applications

The Opta PLC supports real-time control, monitoring, and predictive maintenance, making it an ideal choice for industrial Internet of Things (IoT) and building automation applications.

The Arduino Opta micro PLC is based on the STM32H747XI dual-core microcontroller from STMicroelectronics, which includes a single high-performance Arm Cortex-M7 core running at up to 480 MHz and a lower-power Cortex-M4 core running at up to 240 MHz alongside a shared floating-point unit (FPU).

The Opta is offered in three variants: Opta Lite, which includes Ethernet connectivity and USB Type-C for programming; Opta RS485, which adds RS485 half-duplex support; and Opta WiFi, which includes radios for Wi-Fi® and Bluetooth® Low Energy (BLE) connectivity.

All models support over-the-air updates and feature a dedicated secure element for cryptographic assurances, plus relays for switching four loads of up to 2.3 kW each. The highly versatile controllers also include optional support for standard IEC 61131-3 PLC languages and fieldbus integration via Modbus TCP and Modbus RTU.