EU Declaration of Conformity – M-Duino Ethernet PLC Arduino 21

The M-Duino 21 is an open-source industrial Arduino PLC with Ethernet connectivity, designed for demanding automation environments. This document is the official EU Declaration of Conformity, certifying that the M-Duino 21 meets all applicable European safety and electromagnetic compatibility directives — including CE marking requirements. Essential documentation for engineers integrating industrial control systems, SCADA, or IIoT solutions who need to verify regulatory compliance before deployment.

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