3.5inch 480x800 LCD

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Overview

Introduction

3.5-inch IPS Capacitive Touch LCD Display, 480 × 800, Adjustable Brightness. Support Raspberry Pi and Jetson Nano, and also can be used as a computer monitor.

Feature

  • 3.5-inch IPS screen, 480 × 800 hardware resolution.
  • Supports up to 5-point capacitive touch.
  • Supports Raspberry Pi OS / Ubuntu and Kali when used with Raspberry Pi.
  • Supports Ubuntu when used with Jetson Nano.
  • Supports Windows 11 / 10 / 8.1 / 8 / 7 when used as a computer monitor.
  • Supports backlight control, more power saving.

Parameters

Item Description Unit
Model 3.5inch 480 × 800 LCD /
Size 3.5 Inch
Viewing Angle 170 Deg
Resolution 480 × 800 Pixels
Outline Dimensions 88.87 (H) × 52.56 (V) × 7.15 (D) mm
Display Area 75.80 (H) × 45.36 (V) mm
Pixel Pitch 0.18 (V) × 0.18 (H) mm
Color Gamut 70% NTSC
Maxium Brightness 300 cd/m²
Contrast 1000:1 /
Backlight Adjustment Button Dimming /
Refresh Rate 60 Hz
Display Port Standard HDMI Port /
Touch Port 5V USB Touch /
Power Consumption 2 Watt
Weight 55 g

Electrical Specifications

Parameter Minimum Standard Maximum Unit Note
Input Voltage 4.75 5.00 5.25 V Note 1
Input Current 500 500 TBD mA Note 2
Operating Temperature 0 25 60 Note 4
Storage Temperature -10 25 70 Note 4

•Note 1: Input voltage exceeding the maximum value or improper operation may cause permanent damage to the device.
•Note 2: The input current must be ≥500mA, otherwise, it will cause startup failure or abnormal display, and it may cause permanent damage to the device if it is in an abnormal state for a long time.
•Note 3: Please do not store the display in a high-temperature and high-humidity storage environment for a long time. The display must work within the limited value range, otherwise, the display may be damaged.

EDID Timing Parameters

If the system of the main control board can automatically recognize the EDID for display, there is no need to additionally set related timing parameters.

Otherwise, you can refer to the following EDID settings:

Pixel Clock H Addressable H Blanking V Addressable V Blanking H Front Porch H Sync Width V Front Porch V Sync Width H Image Size V Image Size H Border V Border
30.60 480 120 800 50 10 10 2 4 480 800 0 0

Interface Introduction

3.5inch 480x800 LCD01.jpg

User Manual

Working With Raspberry Pi

Hardware Connection

1. Connect the Touch port to the USB port of the Raspberry Pi.
2. Connect the HDMI port to the Raspberry Pi HDMI port.
3.5inch 480x800 LCD02.jpg

Software Setting

Support Raspberry Pi OS / Ubuntu / Kali and Retropie systems.
When the LCD works on systems such as Raspberry Pi, the resolution must be manually set. Otherwise, the display resolution will be incorrect and affect your experience.

1. Please download the latest version of the image from Raspberry Pi official website.
2. Download the compressed file to the PC, and decompress it to get the .img file.
3. Connect the TF card to the PC, and use SDFormatter software to format the TF card.
4. Open the Win32DiskImager software, select the system image prepared in step 1, and click write to burn the system image.
5. After the programming is completed, open the config.txt file in the root directory of the TF card, add the following code at the end of config.txt, save and eject the TF card safely.

hdmi_force_hotplug=1
hdmi_group=2
hdmi_mode=87
hdmi_drive=1
hdmi_cvt 480 800 60 6 0 0 0

6. Insert the TF card into the Raspberry Pi, power on the Raspberry Pi, and wait for a few seconds to display normally.

Display Rotation

If you're using a Pi4, you can rotate it with:

  • 1. Open Screen Configuration.

8inch 1536x2048 LCD05.jpg

  • 2. Set the rotation as shown below:

8inch 1536x2048 LCD06.jpg
8inch 1536x2048 LCD07.jpg
8inch 1536x2048 LCD08.jpg

  • 3. After rotating and touching, it can be used normally.

If you're using a Pi3+, or older, rotate it by the following way:

  • 1. Add statements to the config.txt file (the config file is located in the root directory of the TF card, ie /boot):
display_rotate=1 #1:90;2: 180; 3: 270
  • 2. Save and restart the Raspberry Pi:
sudo reboot

Touch Rotation

After display rotation, the touch position is wrong because the touch does not change with the display angle. So you need to modify the touch.
1. Install libinput.

sudo apt-get install xserver-xorg-input-libinput

If you are installing an Ubuntu system or a Jetson Nano. The installation command is:

sudo apt install xserver-xorg-input-synaptics

2. Create the xorg.conf.d directory under /etc/X11/ (if the directory already exists, skip to step 3).

sudo mkdir /etc/X11/xorg.conf.d

3. Copy the 40-libinput-conf file to the newly created directory:

sudo cp /usr/share/X11/xorg.conf.d/40-libinput.conf /etc/X11/xorg.conf.d/

4. Edit this file.

sudo nano /etc/X11/xorg.conf.d/40-libinput.conf 

Find the part of the touchscreen, add the following statement to it, and save it.

Option "CalibrationMatrix" "0 1 0 -1 0 1 0 0 1"

Position similar to the picture below:
Touch roate.jpg
5. Reboot the Raspberry Pi.

sudo reboot

Complete the above steps to perform a 90-degree rotation.
Note:
90-degree rotation: Option "CalibrationMatrix" "0 1 0 -1 0 1 0 0 1"
180-degree rotation: Option "CalibrationMatrix" "-1 0 1 0 -1 1 0 0 1"
270-degree rotation: Option "CalibrationMatrix" "0 -1 1 1 0 0 0 0 1"

Working With PC

Support Windows 11 / 10 / 8.1 / 8 / 7

Steps:
1. Connect the Touch port of the LCD to the USB interface of the PC, and Windows will automatically identify the touch function.
2. Connect the HDMI port of the LCD to the HDMI port of the PC, and Windows will automatically identify the display function.
3.5inch 480x800 LCD06.jpg
Note:

  • Some PCs do not support plug-and-play HDMI devices, and they can be used normally after restarting the system.
  • If the power supply of the USB interface is insufficient, the LCD will flicker. It is recommended to use the host USB3.0 interface.

Windows Touch Calibration

Take Windows 10 as an example:

  • 1. Enter the Windows settings of the system, type in the search bar and click "Calibrate the screen for pen or touch input" (as shown in the picture below):

Win10 touch011.png

  • 2. Click "Setup" in the pop-up "Tablet PC Settings" interface:

Win10 touch02.png

  • 3. The following text prompt will appear on the screen. Please tap the touch screen with your finger, and the computer will recognize it as a touch screen.
【Note】If the touch screen is blank, press the "Enter" key, and the text prompt will switch to the touch screen. (The screen which displays the text prompt will be used as a touch screen!)

Win10 touch03.png

Dimensions

3.5inch 480x800 LCD07.jpg

FAQ

 Answer:

Rotate the 10K resistor shown by the arrow in the figure below by 90°, and then solder the external PWM signal to the not connected terminal of the 10K resistor.
3.5inch 480x800 LCD FAQ.png

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