The DWIN TC070C22 U(W) 00 is a 7-inch IPS‑TFT LCD capacitive‑touch temperature controller, purpose‑built for smart home, HVAC, and building automation applications. Based on the DWIN T5L2 ASIC and running the DGUS II software platform, the controller integrates a 1024×600‑pixel 16.7‑million‑colour display, dual‑NTC precision temperature sensing (±1 °C), speaker, real‑time clock, RS‑485 communication with Modbus RTU protocol, and optional WiFi for remote APP control—all within a standard 86‑box wall‑mount form factor.

Display, Touch & Hardware Platform

• 7.0″ High‑Resolution IPS Screen: The 1024×600‑pixel IPS‑TFT‑LCD delivers 250 nit brightness, 85°/85°/85°/85° (L/R/U/D) wide viewing angles, and a 90° rotatable display orientation—suitable for both portrait and landscape wall mounting. The capacitive touch panel with full‑lamination provides a sleek, frameless front surface.
• T5L2 ASIC & DGUS II Platform: The dual‑core T5L2 processor runs the DGUS II HMI development system, enabling zero‑code UI design by graphic designers using the DGUS tool. For advanced integration, the TA instruction set (C51‑compatible) allows custom application logic development, effectively combining a graphical user interface and an application controller on a single chip.
• Multi‑Media Peripherals: Built‑in speaker and RTC enable audible feedback, timed temperature schedules, and alarm functions without external components.

Precision Temperature Control & Multi‑Protocol Connectivity

• Dual‑NTC Sensing Algorithm: The controller uses two NTC thermistors with proprietary algorithm that compensates for self‑heating of the display electronics—a common cause of measurement drift in smart thermostats. The result is ±1 °C control accuracy across the operating temperature range.
• RS‑485 Modbus RTU (Standard): The UART‑based RS‑485 interface supports the Modbus RTU protocol, allowing direct integration with PLCs, building management systems, and industrial SCADA platforms. The interface uses a 4Pin 2.0 mm pitch connector, and the address and baud rate are configurable via the DGUS II interface.
• Optional WiFi & Multi‑Protocol Expansion: The “W” variant integrates a WiFi module that connects to cloud platforms (Tmall Genie, Xiaomi, Baidu, Tuya Cloud), enabling APP‑based remote control, voice commands, and over‑the‑air firmware updates. ZigBee and Bluetooth modules are available as alternatives. The controller also supports inter‑device communication via TTL UART, enabling multi‑controller networking in larger installations.

Application Scenarios

• Smart Home: Centralized control of air conditioning, floor heating, fresh air ventilation, lighting, and curtains through a single wall‑mounted panel. The 16.7‑million‑colour IPS display renders custom UI themes to match premium interior design. WiFi‑enabled models support voice control and scene‑based automation.
• Hotels & Commercial Buildings: RS‑485 Modbus RTU enables integration with BMS and guest‑room management systems. Multi‑language UI support, timer functions, and lockable settings make it suitable for hotel room thermostats, office zone controllers, and retail space climate management.
• HVAC OEMs & Product Developers: The DGUS II zero‑code UI development environment reduces time‑to‑market for custom thermostat products. DWIN provides the hardware platform, display, and touch interface; OEMs design the graphic UI and integrate with their own HVAC control boards via RS‑485 or TTL UART.