📺 Nextion 3.5″ HMI LCD (RED Series)
📌 Featured Products
Nextion NX4832T035 3.5″ HMI TFT LCD Touch Module – Common Basic 3.5″ display with resistive touch
Nextion NX4832K035 3.5″ Enhanced HMI LCD Display / Nextion NX4832K035 Enhanced Series 3.5″ LCD – Enhanced Series with more features & memory
Nextion Generic 3.5″ HMI Touch Display (various sellers) – Generic Nextion-compatible variant
📘 General Description
Nextion 3.5″ LCD panels are intelligent HMI (Human-Machine Interface) touch displays with a built-in processor and GUI support. They let you design GUIs in the Nextion Editor and communicate with microcontrollers (Arduino, ESP32, STM32, Raspberry Pi, etc.) using simple serial (UART) commands.
They are designed to replace traditional LCD + touchscreen + driver combos by handling graphics and touch processing internally, freeing up your MCU.
📊 Typical Specifications (Basic & Enhanced)
📏 Display
Screen Size: 3.5 inch diagonal
Resolution: 480 × 320 pixels (HVGA)
Color Depth: 65 K colors (16-bit, RGB565)
Display Type: TFT LCD with LED backlight
Touch Screen: Resistive touch panel
🔌 Hardware & Interface
Communication Interface: UART (4-pin TTL serial)
On-Board Memory (Enhanced): ~32 MB flash + extra SRAM (varies)
Flash (Basic): ~16 MB (for UI resources/code)
Supported Encoding: ASCII & many character sets for multilingual support (Enhanced)
GUI Tools: Designed/loaded using Nextion Editor drag-and-drop GUI software
⚙️ Electrical
Operating Voltage: 5 V DC (recommended power supply ~5 V, 500 mA)
Typical Current Consumption: ~145 mA @ 5 V (brightness 100 %)
Backlight Lifetime: > 30,000 hours
🧠 Mechanical & Environmental
Visual Area: ~73.44 mm × 48.96 mm
Module Size: ~100.5 mm × 54.94 mm × ~5-12 mm (varies by series)
Weight: ~38–48 g (model dependent)
Operating Temp: –20 °C to +70 °C
Storage Temp: –30 °C to +85 °C
🚀 Features
✔ Handles GUI graphics internally — reduces effort on main MCU
✔ Built-in resistive touch interface
✔ Adjustable backlight brightness
✔ Drag-and-drop UI design with Nextion Editor
✔ Simple ASCII-based commands over UART
✔ Micro-SD support for quick firmware/UI updates (on many variants)
🛠 Common Usage
Ideal for:
Embedded control panels
IoT device displays
Sensor dashboards
Home automation UIs
Arduino, ESP32, STM32, Raspberry Pi interfaces