HMI stands for "Human-Machine Interface." It refers to the interface through which a person interacts with a machine, device, or system. An HMI can take many forms, such as a touchscreen display, a keyboard, a mouse, or a joystick.
The purpose of an HMI is to allow humans to control and monitor machines and systems, often in industrial or commercial settings. The HMI can display data such as temperature, pressure, or flow rate, and allow the user to adjust settings or initiate actions based on that data.
In recent years, HMI technology has advanced significantly, with the rise of smart devices and the Internet of Things (IoT). This has led to the development of more sophisticated and intuitive HMIs that can be operated remotely, or that use voice or gesture recognition to interact with the user.