Qt is the cross-platform framework behind robotics and automation HMIs and control software. One codebase runs across embedded devices, industrial PCs, edge and MCUs, with real-time 2D/3D graphics for SCADA, teach pendants, digital twins and fleet management. Built-in Qt OPC UA, MQTT, Serial Bus and gRPC connect the factory for Industry 4.0; Axivion, Qt Safe Renderer, Squish and Coco help meet IEC 61508, MISRA and EU CRA—faster, safer, future-ready.