3.95inch Arduino Display-UNO

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Product Picture

3.95-UNO-main-5.jpg3.95-UNO-2pin.jpg3.95-UNO-9pin.jpg

Product Description

  • Supports development boards such as Arduino UNO and Mega2560 for plug-in use without wiring
  • 3.95-inch color screen, support 16BIT RGB 65K color display, display rich colors
  • 480X320 resolution, clear display
  • 8-bit parallel bus, faster than serial SPI refresh
  • On-board 5V/3.3V level shifting IC, compatible with 5V/3.3V operating voltage
  • Support for touch function
  • Easy to expand the experiment with SD card slot
  • Provides an Arduino library with a rich sample program
  • Available on C51 and STM32 platforms with a rich sample program
  • Military-grade process standards, long-term stable work
  • Provide underlying driver technical support

Product Parameters

Name Parameter
Display Color 16BIT RGB 65K color
SKU MAR3954
Screen Size  3.95(inch)
Type TFT
Driver IC ST7796S
Resolution 480*320 (Pixel)
Module Interface 8-bit parallel interface
Active Area  83.52x55.68(mm)
Module PCB Size 96.52x61.47 (mm)
Operating Temperature -20℃~60℃
Storage Temperature -30℃~70℃
Operating Voltage 5V/3.3V
Power Consumption TBD
Product Weight(Package containing) 65g

Interface Definition

MAR3954-003.jpg

Number Pin Label Pin Description
1 LCD_RST LCD bus reset signal, low level reset
2 LCD_CS LCD bus chip select signal, low level enable
3 LCD_RS LCD bus command / data selection signal,

low level: command, high level: data

4 LCD_WR LCD bus write signal
5 LCD_RD LCD bus read signal
6 GND Power ground
7 5V 5V power input
8 3V3 3.3V power input(this pin can be disconnected)
9 LCD_D0 LCD 8-bit data Bit0
10 LCD_D1 LCD 8-bit data Bit1
11 LCD_D2 LCD 8-bit data Bit2
12 LCD_D3 LCD 8-bit data Bit3
13 LCD_D4 LCD 8-bit data Bit4
14 LCD_D5 LCD 8-bit data Bit5
15 LCD_D6 LCD 8-bit data Bit6
16 LCD_D7 LCD 8-bit data Bit7
17 SD_SS SD card SPI bus chip select signal, low level enable
18 SD_DI SD card SPI bus MOSI signal
19 SD_DO SD card SPI bus MISO signal
20 SD_SCK SD card SPI bus clock signal

Connect to Arduino

3.95-UNO-connect-UNO.jpg3.95-UNO-connect.jpg

How to use on Arduino

  • Step 1: Download the test program
  1. Download the Arduino test program from the Program Download column
  2. For a description of the relevant test procedures, please refer to the test program documentation in the package
  • Step 2: Connect the Arduino development board
  1. Plug the module directly into the Arduino development board ( Do not plug in?)
  2. After the module is plugged in, power on the Arduino board
  • Step 3: Copy the dependent library
  1. Make sure the Arduino IDE is installed on your computer (if it is not installed: Arduino IDE download URL)
  2. After installing the Arduino IDE, you need to copy the dependent library to the Arduino project directory as follows:
(1) Decompress the downloaded test package
(2) Copy the dependent libraries in the Install libraries directory in the package (shown below) to the libraries folder
of the Arduino project directory ( Don't know the Arduino project directory?
MAR2406-005.jpg
  • Step 4: Compile and download the program to the development board
  1. Open the sample in the Example directory of the package to test, compile and download( Don't know how to compile and download?
  • Step 5: Observe the running of the program
  1. After the program is downloaded, run it directly and observe the running status. If it can be displayed normally, the program runs
successfully, as shown in the following figure (take the colligate_test test program as an example):
MAR3954-006.jpgMAR3954-007.jpg

Program Download

Product Documentation

Reference Materials

Common Software

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