Smart things

Access control
that keeps
sales moving

Self-checkout gates: Why remote management matters  

Retail access control has become far more than a mechanical checkpoint. Today, it must do two things at once: keep self-checkout moving seamlessly and give store teams the visibility and control they need to manage every business-critical device efficiently and effectively.
 

In a busy retail environment, every second matters. If a customer has already paid, the gate should open instantly. Even a brief delay can disrupt the experience, frustrate shoppers, and erode loyalty.
 

That urgency led Laurel, a Hungary-based developer of retail access control systems, to build its solution on ST’s high-performance STM32 portfolio and time-of-flight sensors. But hardware reliability alone was not enough. With thousands of retail centers across Europe and the Middle East, including the UAE, the company also needed to give store operators real-time remote visibility at the gate. All this without sending technicians on-site for every adjustment or diagnostic check.

Target icon

Challenge

  • Extend strong real-time access control expertise with a secure web interface for remote monitoring, OTA updates, and servicing.
  • Deliver intuitive dashboards for remote access configuration, diagnostics, and maintenance. 
Solution icon

Solution

  • High-performance STM32H7 MCU, enabling real-time control, efficient sensor processing, and secure connectivity on a single device.
  • Cesanta’s Mongoose embedded Web UI framework for microcontrollers to add a Web user interface (dashboard), firmware over-the-air updates (OTA), REST API, and file handling directly on the STM32H7.
  • ST VL53 Time-of-Flight sensor, allowing the gate to react accurately to people and obstacles for reliable, responsive operation.
Impact logo

Impact

  • Store teams gained remote visibility, control, and serviceability, reducing downtime and speeding up maintenance and troubleshooting.
  • Commissioning became faster and simpler.
  • A more connected, easier-to-manage access control system that helps keep store traffic moving smoothly.
Attila portrait

We created our access control solution for seamless checkout flow and full remote management capability in mind.

Attila Bessenyei, CEO, Laurel

How Laurel built a Web user interface running on the STM32H7

Laurel’s challenge was a familiar one in embedded engineering. The company knew how to design reliable hardware and precise control systems, but building a secure browser-based interface could impact the project timeline. Rather than developing the web layer from scratch, Laurel turned to Cesanta, an ST Authorized Partner.

 

Using Cesanta’s ready-to-use Mongoose library, Laurel was able to add a web interface and over-the-air (OTA) firmware update capability directly to the device itself. In practical terms, that means store staff can now access a dashboard through a standard browser to check gate status, review activity, adjust operation settings, or assist with troubleshooting and update firmware remotely. For retail operators, that level of visibility and functionality matters. It can reduce downtime, speed up maintenance, and make easier to manage multiple systems across multiple locations. 

Cesanta took a major burden off our team. They let us add the reliable and production level web layer on STM32 far more easily than building it ourselves.

Zoltán Héjj, Microcontroller Team Leader, Laurel

From access control to remote serviceability

The STM32H7 gives Laurel the speed and reliability to keep gates moving, while Mongoose adds a production-grade web layer that makes remote control feel intuitive through comprehensive dashboards. Together, they help turn a technical system into a smoother retail experience, one where service teams can respond faster, and where customers don’t feel the friction of having to stop after leaving the checkout. For retailers like COOP, one of Laurel’s many customers, that means fewer interruptions, quicker action when something goes wrong, and a better shopping experience. Because in retail, a small delay can cost more than time, it can cost a sale.

About Laurel

Laurel Retail is a market-leading retail technology provider with over 30 years of experience. We design, develop, and operate end-to-end retail solutions, including POS systems, self-checkout, and access control technologies. Our solutions support thousands of stores across Europe and the Middle East, helping retailers improve operation efficiency, security, and customer experience.

Laurel logo in white

About Cesanta

A technology company behind Mongoose, an embedded Web UI framework for microcontrollers and IoT devices. Mongoose lets embedded developers build browser-based dashboards and configuration pages directly on the device. It combines a lightweight networking library (TCP/IP stack + TLS + HTTP + WebSocket + MQTT) with a Web UI Wizard that generates complete dashboards without requiring frontend skills. 

logo Cesanta

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