FT813 Deep Dive: Custom Widgets, Fonts & Performance

15 July 2026 –

Introduction

Bridgetek’s (EVE2) has already proven itself as a powerful solution for Human–Machine Interfaces (HMIs). With SVGA resolution (800×600), capacitive multi‑touch, 24‑bit RGB colour, and integrated audio, it simplifies complex UI design. But beyond the basics, the FT813 offers advanced techniques that unlock its full potential — from custom widgets to multi‑language font handling and performance optimization.

🖼️ Custom Widgets for Tailored Interfaces

The FT813 comes with a rich set of built‑in widgets (buttons, sliders, gauges, progress bars). However, advanced developers often need customized UI elements to match brand identity or unique workflows.

• Custom Widget Creation: By leveraging bitmaps and via drawing techniques such as alpha blending and stencilling, developers can design bespoke controls such as radial menus, animated icons, or branded navigation bars.
• Dynamic Interactivity: Widgets can respond to touch gestures, enabling touch buttons, linear sliders, and rotary controls, via the FT813’s touch tagging and tracking features.
• Consistency Across Devices: Custom widgets ensure a unified look across industrial HMIs, consumer devices, and automotive dashboards.

 

🌐 Multi‑Language Font Handling

Global products demand interfaces that support multiple languages and scripts. The FT813’s font engine makes this possible without heavy MCU overhead.

• Custom Font Support: Developers can load custom fonts to cover Latin, Cyrillic, Chinese, Japanese, and Arabic scripts.
• Font Compression: Using EVE Asset Builder, fonts can be compressed to save memory
• Custom Typography: Designers can integrate corporate fonts for brand consistency, ensuring professional presentation in dashboards and consumer interfaces.

 

⚡ Performance Optimization for Complex HMIs

The FT813 offloads graphics processing from the MCU, and has many features which help to even further improve performance for demanding applications.

• Efficient Display Lists: Storing sections of the display list in RAM_G and recalling via the Append command further minimises MCU workload and SPI bandwidth needed
• Asset Management: 1Mbyte of on-chip RAM allows for storing of frequently used images and fonts whilst the applications is running to speed up loading and interaction.
• Blending & Effects: Advanced blending modes allow smooth transitions, transparency, and layered effects

📊 Real‑World Applications

• Industrial HMIs: Custom widgets with dynamic graphics for machine controls.
• Medical Devices: Optimized performance ensures responsive touchscreens and clear readouts.
• Consumer Electronics: Branded fonts, multi‑language support, and smooth animations elevate user experience.

 

Conclusion

The FT813 is more than a graphics controller — it’s a complete HMI solution. By mastering custom widgets, multi‑language fonts, and taking advantage of its features which help optimise performance, developers can deliver interfaces that are highly functional, visually compelling and globally accessible.

Bridgetek’s FT813 empowers engineers to design HMIs that stand out in usability, efficiency, and brand identity.

To find out more get in touch at marketing@brtchip.com or visit www.brtchip.com

It’s Easy with EVE!