The NEXTION NX4832K035-3.5INCH is a 3.5-inch resistive touchscreen from the Nextion Enhanced Series, designed to offer an interactive, customizable interface between users and electronic systems. Developed for use in IoT and embedded applications, it enables control and visualization through a graphical user interface (GUI). The display can be easily programmed using the Nextion Editor, which supports drag-and-drop design and ASCII-based component control.
Compared to the Basic Series, the Enhanced Series provides faster processing, greater memory capacity, built-in RTC, EEPROM storage, and 8 GPIO ports, offering significantly greater flexibility and functionality for complex HMI projects.
Key Features
- 3.5" resistive touchscreen with >1 million touch lifespan
- 480×320 resolution (configurable to 320×480)
- 64K color support (16-bit, 5R-6G-5B)
- Integrated microcontroller with onboard memory
- Simple serial communication via 4-pin TTL interface
- Drag-and-drop GUI creation with Nextion Editor software
- MicroSD card slot for firmware upgrade (FAT32, up to 32GB)
- Built-in RTC (CR1220 battery supported)
- 8 digital GPIOs with component binding (IO4-IO7 support PWM)
- EEPROM for user data storage
- Ideal for IoT devices, appliances, control panels, and embedded GUIs
Display & Physical Specifications
- Touch type: Resistive
- Brightness: 180 nits (adjustable 0-100% in 1% increments)
- LED backlight lifespan: >30,000 hours
- Layout size: 100.5mm (L) × 54.94mm (W) × 5.45mm (H)
- Visual area: 85.50mm (L) × 54.94mm (W)
- Active area: 73.44mm (L) × 48.96mm (W)
- Weight: 48.2g
Power & Electrical Characteristics
- Operating voltage: 4.75V to 7V (recommended 5V, 500mA DC)
- Operating current (at full brightness): typically 145mA
- Sleep mode current: typically 15mA
Environmental Parameters
- Operating temperature: -20 C to 70 C
- Storage temperature: -30 C to 85 C
- Operating humidity: 10% to 90% RH (non-condensing)
Interface & Communication
- Serial port: TTL (4-pin, 2.54mm)
- Supported baud rates: 2400 to 115200 bps
- Output high voltage (TX): 3.0V to 3.2V
- Output low voltage: 0.1V to 0.2V
- Input high voltage (RX): 2.0V to 5.0V
- Input low voltage: -0.7V to 1.3V
- USB interface: Not available
- SD card socket: MicroSD (FAT32, up to 32GB) for firmware update only
Extended I/O & Control
- 8 extended GPIOs (IO0 to IO7)
- IO4 to IO7 support PWM
- Each IO supports input, output, and component binding
- Maximum recommended current draw per IO: 1mA
Memory Specifications
- Flash memory: 32MB (for fonts, images, and GUI elements)
- RAM: 8192 bytes (for variable runtime storage)
- EEPROM: 1024 bytes (for persistent user data)
- Instruction buffer: 1024 bytes
Use Cases
- Smart appliances and control panels
- Industrial control systems
- IoT user interfaces
- Portable embedded electronics
- Custom display modules for consumer electronics
What's in the box
x1 NEXTION NX4832K035-3.5INCH: 3.5" Enhanced Resistive HMI Display
