LCD 4.3 Nextion Touch TFT Serial Display Panel Module NX4827P043-011C-Y

Features

• 4.3-inch intelligent HMI touchscreen display.
• 480 × 272 pixel TFT LCD resolution.
• Capacitive touch panel for responsive user interaction.
• IPS display technology with wide 178° viewing angle.
• 65K RGB color display for rich and clear graphics.
• Integrated 200MHz high-performance MCU.
• 512KB SRAM and 128MB Flash memory for complex interfaces.
• Independent processing of graphics, touch, and interface events.
• UART TTL serial communication interface.
• Compatible with Arduino, ESP32, STM32, Raspberry Pi, and other MCUs.
• Supports animations, images, icons, buttons, sliders, graphs, and custom interfaces.
• Designed using Nextion Editor drag-and-drop GUI software.
• Reduces programming complexity by handling display operations internally.
• Suitable for industrial, automation, IoT, and embedded applications.

Principle of Operation

The Nextion NX4827P043-011C-Y operates as an independent HMI controller. The onboard MCU manages all display functions including graphics rendering, touchscreen scanning, page switching, animations, and component events.

The external microcontroller communicates with the display through a UART serial connection using simple ASCII-based commands. The controller can send instructions to update text, values, images, and interface elements, while the display sends user interaction events such as button presses and touch actions back to the controller.

The user interface is created using Nextion Editor, where graphical components can be placed using a drag-and-drop system. After compiling the project, the generated TFT file is uploaded to the display using a USB-to-TTL converter or microSD card.

Applications

• Industrial machine control panels
• Smart home control interfaces
• IoT monitoring dashboards
• Robotics control systems
• 3D printer touch interfaces
• Automation equipment displays
• Laboratory and measurement instruments
• Energy monitoring systems
• Embedded GUI projects
• Educational electronics applications
• Custom control terminals

Pinout

Wiring

The Nextion NX4827P043-011C-Y connects to the main controller using a simple UART serial interface. Only four wires are required for operation: power, ground, transmit, and receive.

Note: Ensure UART voltage compatibility when connecting with 3.3V controllers such as ESP32 or STM32.

Library Required

The Nextion display communicates using UART commands and does not require a dedicated display driver library. However, libraries can simplify communication and event handling.

• Nextion Arduino Library for Arduino-based projects.
• UART Serial Libraries for ESP32, STM32, and Raspberry Pi platforms.
• Custom UART Implementation using the Nextion Instruction Set for other microcontrollers.

Example Arduino Code

#include <SoftwareSerial.h>

SoftwareSerial nextion(10, 11); 
// RX, TX

void setup()
{
  Serial.begin(9600);
  nextion.begin(9600);
}

void loop()
{
  // Change text component t0
  nextion.print("t0.txt=\"Hello Nextion\"");
  nextion.write(0xFF);
  nextion.write(0xFF);
  nextion.write(0xFF);

  delay(2000);
}

Uploading HMI Projects

Using USB-to-TTL Adapter

1. Create the interface design using Nextion Editor.
2. Compile the project and generate the TFT file.
3. Connect the display using a USB-to-TTL converter.
4. Upload the TFT project file to the display.

Using MicroSD Card

1. Format a microSD card using FAT32 format.
2. Copy the TFT file to the SD card.
3. Insert the SD card into the Nextion display.
4. Power on the display.
5. The update process starts automatically.
6. Wait until the display shows successful update.
7. Remove the SD card and restart the display.

Specifications

Resources

• Nextion Editor:
  https://nextion.tech/nextion-editor/
• Nextion Instruction Set:
  https://nextion.tech/instruction-set/
• Nextion Arduino Library:
  https://github.com/itead/ITEADLIB_Arduino_Nextion
• Nextion Official Website:
  https://nextion.tech/
• Arduino IDE:
  https://www.arduino.cc/en/software