01
WYSIWYG, identical on both ends
The designer simulator and target firmware share one widget catalog, variable semantics, and protocol core — pass simulation and the hardware behaves the same, continuously guarded by automated cross-verification.
All-in-one Embedded HMI Development Platform
Drag the UI, deploy in one click
DD-CAT IDE is an all-in-one embedded HMI development platform — visual PC design, built-in WYSIWYG simulation, and firmware packages that run directly on your MCU. Simulation and hardware share the same source, verified field by field.
66
Widget types
48
Industrial algorithms
10+
Protocols
91%+
Firmware line coverage
Workflow
From design to MCU firmware, all on one platform
The design software is free; pair it with a module / display board and light up your first screen the same day.
- 01
Drag & design
Visual composition of widgets, bindings and algorithm graphs, driven by variables and expressions
- 02
Built-in simulation
WYSIWYG execution covering variables, rules and bindings end to end
- 03
One-click export
Export a firmware app package (.bin), gated by pre-export validation
- 04
Run on hardware
Flash a module/board and run — RT-Thread / ThreadX across platforms
Why choose us
Six differentiators
02
Zero-code to low-code
Widgets are driven by either variables or expressions; for complex logic, JS scripting, a rule engine, and algorithm graphs let engineers go as deep as needed.
03
Full communication protocol suite
MQTT, TCP, HTTP(S), WebSocket, Modbus RTU, CANopen, PROFINET, SIP voice/video calling, and WebRTC real-time audio/video — just fill in parameters in the designer.
04
Industrial-grade algorithms built in
48 drag-and-drop algorithm blocks — motor control (FOC/SVPWM/sensorless observers), digital power (Buck/Boost/LLC/PFC), motion control (G-code/trajectory planning), PID/LADRC/EKF.
05
Industrial-grade firmware quality
In-house firmware in strict C89 with an industrial-grade safety subset; line coverage 91%+ / branch coverage 72%+ ratchet gates plus libFuzzer fuzzing; global fault codes + watchdog + crash black box.
06
Zero-cost porting across chips & RTOS
The framework core never changes; porting to a new chip/RTOS only touches the platform seam layer (PAL/OSAL). Already deployed on RT-Thread, ThreadX, and multiple MCU families.
Capability showcase
Widgets · algorithms · protocols — all drag-and-drop
66 widget types
From buttons and charts to albums and video — drop onto the canvas and use
48 algorithm blocks
FOC, digital power, motion control, PID/EKF — connect to build a system
10+ protocols
Fill in parameters to connect; same source, cross-verified
Application scenarios
Six industries, out of the box
Industrial HMI Panels
Injection-molding, textile, and CNC panels with Modbus/PROFINET connectivity, live charts and gauges.
ModbusPROFINETChart
Motor Drives & Servo
FOC sensorless control plus HMI on one board, with in-graph parameter tuning.
FOCSensorless observerAlgorithm graph
Digital power
Visual composition of Buck/Boost/LLC control laws, with the GS32 power board reference design.
Buck/BoostLLCPFC
IoT Terminals
MQTT to cloud, HTTPS data fetch, UDT JSON straight into variables, with WiFi status icons.
MQTTHTTPSUDT
Video Intercom / Access Control
SIP calling + WebRTC real-time audio/video + camera capture + photo album.
SIPWebRTCSRTP
Smart Appliances
A full set of consumer interactions: Pinyin keyboard, carousel, chat UI, video playback, and more.
Pinyin keyboardAlbumVideo playback
Quality Assurance
Industrial-grade firmware, proven by data
C89
Industrial-grade safe coding subset; -Wall -Werror all green
91%+ / 72%+
Line/branch coverage ratchet + MC-DC 55%+; baselines only rise
libFuzzer
Fuzzing across all parsing surfaces; crashes require test case + fix + corpus closure
Design your first screen today
Download the designer and start with built-in simulation — no hardware needed. Contact us when you need a hardware solution.