TFT Color Thermostat

Nuvoton’s new true color temperature controller reference design provides complete solutions, starting from the hardware design, using the graphics control series N9H20 microprocessor and built-in 32 MB SDRAM memory, reducing hardware design difficulties.

This solution provides a complete hardware circuit design and PCB layout. In addition, a full graphic of the temperature controller is provided in software design, which includes the power-on screen show, three-page slide mode switching, temperature display, temperature control, perpetual calendar, backlight control, and RS485 control. Furthermore, the software uses open-source so users can change the process and pictures according to their plans, and users can directly download and use related graphics.

Features

- Developing the GUI by Nuvoton emWin graphic library

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Smooth and high-quality GUI

- 4” 480x480 TFT-LCD

- Capacitive touch

- Support RS-485 communication

Specifications

N9H20 (32-bit Arm926EJ-S)
-	LQFP package build-in 32 MB DDR
-	Supports 24-bit RGB LCD Interface
-	Supports resolution up to 1024x768
-	Integrated 2D graphic accelerator
-	Integrated Hardware JPEG Codec

System Block Diagram

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TFT Color Thermostat

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-	Developing the GUI by Nuvoton emWin graphic library
-	Smooth and high-quality GUI
-	4” 480x480 TFT-LCD
-	Capacitive touch
-	Support RS-485 communication