RUI — embedded UI development, made simple
PPT-style visual design + RA8889/RA6809 hardware acceleration + VP variables. Mainstream MCUs can drive HD panels, ship several times faster, and keep business code decoupled from the display.
Engineers should not be stuck on GUI work
Classic embedded UI work burns time on pixels, refresh, and fonts — leaving little left for the actual product.
Too steep to start
TouchGFX / LVGL need C++, DMA2D, and framebuffer skills most MCU engineers do not have.
Heavy hardware
A high-res panel usually needs external SDRAM and QSPI Flash. PCB stack-up and routing get hard fast.
Slow iteration
Every UI tweak means rebuild, flash, and look. A day barely covers a few revisions.
How RUI fixes the root cause
Not animation for show — we win on development speed, simpler hardware, and UI/business split.
Simpler architecture
RA8889/RA6809 include 128Mb SDRAM. No extra frame buffer chip, much simpler PCB and memory routing.
Several times faster
PPT-style drag-and-drop, 1:1 live preview, and one-click Keil projects. New users start in two hours; a prototype in a day.
Lasting decoupling
VP variables only. Change the panel, cloud, or MCU — application code stays the same.
Core architecture
Design to output is visual end to end. The panel does the heavy lifting.
Design (RUI Studio)
- PPT-style visual UI and grouped widgets (align, thumbnail nav, multi-window)
- 1:1 preview and simulator at the target panel resolution (touch / VP / Action)
- Art fonts / vector glyphs / Unicode (all languages, per-glyph polish, scale without jag)
- Overlay drawing and effects rasterized on PC — zero cost on the panel
Widget library V1.0
- Basics: button, slider, progress, switch
- Input: text field, date, table
- Binding: text VP, graphic VP
- Gauge / line / bar / list / dialog / Tab — later releases
Protocol (VP model)
- Industrial UART protocol (CRC16 / ACK / silent boot / customizable), compatible with common serial HMIs
- UI stays decoupled: change transport, MCU, or panel — VP and code stay
Hardware (RA8889 / RA6809 GPU)
- Built-in 128Mb SDRAM, no external frame buffer, simpler PCB
- 2D BTE plus JPEG/AVI hardware decode (MCU idle)
- PIP layers, alpha blend, rotate and mirror
- Up to 1366×2048 @24bpp
Output
- One-click Keil sources (render / touch map / VP map / callback stubs) — compile as received
Widget library
V1.0 covers core industrial HMI widgets. Later releases keep expanding.
In V1.0 (9 widgets)
Planned later
Application cases
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