Nextion is a Human Machine Interface(HMI) solution that provides a control and visualization interface between a human and a process, machine, application, or appliance. Nextion is not just a touch display, and it has a hardware part and a software part which is well developed for HMI applications.

Nextion(NX4024T032) display is a TFT display with a resolution of 400*240. The touch panel for this display is resistive touch. Nextion has only one serial(TTL) for power supply or connection with peripheral devices like Arduino board or Raspberry Pi. What ‘s more? Nextion display has an MCU, and its frequency is up to 48MHz. With the help of 4MB flash, 3584Byte RAM, and an SD card socket, this display is embedded with a rich storage for HMI programming.

As for the software part, Nextion has rich resources. Nextion Editor is a Windows software for GUI development. There are libraries for serial communication with Arduino boards and Raspberry Pi. Moreover, a mass of API is defined for users in The Nextion Instruction Set. With these resources, I believe you will have an easy experience with this display.

Features:

• Nextion TFT resistive touch display
• 3.2” with 400 x 240 resolution
• Providing HMI function for external device like Arduino board or Raspberry Pi
• Including GUI development software and many API commands for GUI development

Specifications: 

• Color - 64K 65536 colors
• Resolution - 400×240 pixel
• Touch-type - Resistive
• Touches - > 1 million
• Backlight - LED
• Backlight lifetime (Average) - >30,000 Hours
• Operating Voltage - 5V
• Operating Current - 85mA Normal Mode, 15mA Sleeping Mode
• Power supply recommend - 5V, 500mA, DC
• Serial Port Baudrate - 2400(Min), 9600(Typical),115200(Max)
• Serial Port Mode - TTL
• Serial Port - 4Pin_2.54mm
• USB interface - NO
• SD card socket - Yes (FAT32 format), support maximum 32G Micro SD Card
• FLASH Memory - 4 MB
• RAM Memory - 3584 Byte

• 3.2”_Nextion_Dimension