Feature: Displays
STM32-type displays unlock the true power of cloud-connected
systems By Keith Wong, Technical Development Manager, Inelco Hunter
I
magine a smart display that shows real-time data and accepts touch input whilst communicating directly with the cloud and allowing user control from anywhere. Tis is exactly what STM32 display solutions offer. Tese
are advanced, all-in-one human machine interface (HMI) modules, integrating high- performance STM32 microcontrollers with display panels, and catering for modern applications, such as the IoT, that require more than just a traditional display. STM32 displays combine responsive GUIs, built-in networking and secure cloud connectivity, making them the ideal front end for smart, connected systems.
Why STM32 displays? STM32 microcontrollers are known for their rich peripheral set, high performance and energy efficiency. When paired with an embedded display, like those developed using TouchGFX (the soſtware framework for creating high-performance, smartphone- like graphical user interfaces) or Embedded Wizard (GUI development tool), the result is a powerful, smart HMI that not only interacts with the user but serves as a control hub for cloud-connected systems. Trough cloud integration (via MQTT,
HTTPS, or REST APIs), STM32 displays can show live telemetry from remote sensors, display diagnostic data, error logs and predictive maintenance alerts, and
28 March 2026
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graph trends like temperature, pressure, energy usage, or machine status for immediate system assessment. By placing this information directly on machines, wall panels, or handheld devices, the display becomes the first point of insight into the IoT system. With the STM32 display users can
change settings locally (say, to adjust a smart thermostat or control industrial parameters), which are then immediately synced to the cloud. Tis reduces dependency on external devices like phones or laptops, and enables offline fallback operations, immediate feedback through touchscreen or physical inputs, and continuous synchronisation to AWS, Azure, or private cloud systems. Also, thanks to the STM32’s networking
capabilities, users can access the device from any browser – on a PC, tablet, or smartphone – without apps. Te STM32 system can serve a lightweight, embedded web interface using LwIP + HTTP(s) server, CGI for remote control/configuration, and SSI or AJAX for live updates, thus allowing remote configuration and monitoring from anywhere on the LAN or cloud, multi-user access for maintenance teams, supervisors, or customers, and mobile-friendly control panels for field use. Whether it’s adjusting system parameters, viewing sensor logs, or triggering remote actions, browser access transforms the STM32 display into a fully connected, cross-platform control panel.
A key benefit One of the key benefits of using STM32 displays, especially with integrated web access, is the delivery of consistent user experience – whether users are interacting directly with the screen or remotely via a browser. With a single STM32 system, the on-screen GUI and web interface can share the same logic and data, ensuring consistency. Users in the field can use the touchscreen, whilst remote users (managers, service teams, or integrators) access the same interface via a browser. Equally, branding, workflows and
controls can be designed once and deployed across both local and cloud-connected interfaces. Tis unified experience not only improves usability but also reduces development effort and eliminates version mismatch between local firmware and remote dashboards. Inelco Hunter provides STM32 display
modules that can simultaneously run an interactive GUI on the screen and a web server. Tis parallel operation provides a smooth local touch interface for on-device interaction, modern smartphone/tablet-like GUI by TouchGFX and Embedded Wizard, a responsive web dashboard accessible from a browser, and synchronised state and control, so both local and remote users see the same data and settings. Tis dual-mode operation makes the STM32 displays ideal for smart IoT devices where both hands-on control and remote access are essential, without requiring multiple processors or external gateways.
A smarter approach Compared to conventional HMIs that are oſten bulky, expensive and limited to local control, STM32 displays provide much bigger advantages. By combining display, control, connectivity and logic on a single STM32 display, complexity, cost and time-to-market are significantly reduced, yet providing a modern and interactive experience. And, especially an a well-designed IoT
system, the STM32 display becomes more than just a screen – it’s a smart node that combines local interactivity with global connectivity. Whether building a smart appliance, an
industrial monitor, or an environmental dashboard, STM32 displays bridge the gap between cloud intelligence and the human experience.
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