Serial HMI
Sweet spot: compact screen logic, low-rate data, fast integration and a controlled page set.
Choose the architecture that fits your real requirements, verify the boundary before it becomes a redesign, and build with a stack and capability path you can explain.
A higher tier is not automatically better. Stay with the simplest architecture that still has healthy headroom.
Move up only when the requirement has genuinely outgrown the current level. Cost, boot time, maintenance and product lifetime matter alongside graphics performance.
Sweet spot: compact screen logic, low-rate data, fast integration and a controlled page set.
Sweet spot: responsive embedded GUI, deterministic control, fast boot and moderate resolution.
Sweet spot: richer graphics with embedded control, accelerators, larger memory and disciplined boot.
Sweet spot: complex applications, multimedia, networking, security, Qt/QML or Android ecosystems.
The HMI Boundary Assessment uses visible rules across five requirement groups. It can recommend staying, watching a pressure point, or comparing the next tier.
Start with evidence, not a logo list. Each stack states what has been demonstrated and what still needs product-level validation.
ArtInChip D12 · TFT display · LVGL · touch UI
1024×600 · LVGL · capacitive touch · monitoring UI
Android · 4G connectivity · integrated module path
Verification is scoped. A working demo proves defined functions on a reference setup; it does not replace product-specific thermal, EMC, safety, lifecycle or production testing.
Content is organized around engineering decisions and failure points, not around vendors.
Serial HMI, MCU, HMI SoC, Linux or Android?
02Interfaces, timing, optical stack and integration.
03Buffers, bandwidth, FPS, tearing and asset load.
04System boundaries, partitioning and OS trade-offs.
05EOL panels, missing source, BSP and OS moves.
06What a demo proves and what the product must verify.
07From evaluation to lifecycle and supply readiness.
A discontinued panel, unavailable source code or an aging BSP is not just a replacement-parts problem. Preserve behavior, reduce requalification risk and recover long-term ownership.
Find a compatible path without repeating every decision.
Recover ownership and separate device logic from presentation.
Plan OS, security and hardware migration together.
Measure the bottleneck before replacing the whole platform.
The network is organized by what a project needs and what can be demonstrated—not as a directory of names.