Difference between revisions of "3.2inch HDMI LCD (H)"

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== Resource ==
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= Resource =
=== Software ===
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== Software ==
 
* [http://www.waveshare.com/w/upload/d/d7/Panasonic_SDFormatter.zip Panasonic SDFormatter]
 
* [http://www.waveshare.com/w/upload/d/d7/Panasonic_SDFormatter.zip Panasonic SDFormatter]
 
* [http://www.waveshare.com/w/upload/7/76/Win32DiskImager.zip Win32DiskImager]
 
* [http://www.waveshare.com/w/upload/7/76/Win32DiskImager.zip Win32DiskImager]

Revision as of 07:19, 28 June 2022

3.2inch HDMI LCD (H)
3.2inch HDMI LCD (H)

3.2inch HDMI IPS LCD Display (H), 480×800
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Overview

This is a 3.2inch HDMI display, 480 x 800 resolution, supports Raspberry Pi, Jetson Nano, and Desktop Windows PC.

Features

  • 3.2inch IPS display, the hardware resolution is 480 x 800.
  • Working with Raspberry Pi, support Raspberry Pi OS / Ubuntu / Kali and Retropie.
  • Working with Jetson Nano, support Ubuntu.
  • Working with PC, support Windows 11/10/8.1/8/7.
  • Backlight is adjustable, saving power consumption.

Featured Design

Design.jpg

Work with Windows PC

To use with Windows PC, the display supports Windows 11, 10, 8.1, 8 and Windows 7

  • Connect the Only Power interface to the USB port of PC
  • Connect the Display interface to the HDMI port of PC

Note: This display is a portrait mode by default, resolution is 480 x 800. You can change the orientation by software.

Work with Raspberry Pi

To use display with the Raspberry Pi, this LCD can support Raspberry Pi OS / Ubuntu / Kali and Retropie systems, you need to configure the resolution manually.

  • Download the newest image from Raspberry Pi website.
  • Unzip the image archive and get the .img file.
  • Format the SD card by the SDFormatter software
  • User the Win32DiskImager software, write the .img file to the SD card.
  • After writing, modify the config.txt file:
hdmi_group=2
hdmi_mode=87
hdmi_timings=480 0 50 20 50 800 0 19 20 20 0 0 0 60 0 38000000 6
  • Save and eject the sd card.
  • Insert the SD card to Raspberry Pi
  • Connect the Only Power interface to the USB port of Raspberry Pi
  • Connect the Display interface to the HDMI port of Raspberry Pi
  • Waiting for a moment, and the display lights and works.

Note: This display is a portrait mode by default, resolution is 480 x 800. You can change the orientation by software.

Orientation

Windows PC

  • Right-click and choose the Display setting
W-R-3.png
  • Click the Identify to detect the display
    • Choose the display, set the display mode to extend and change the orientation
W-R-2.png

Raspberry Pi

Update software version

Raspberry Pi OS Bullseye branch needs to update the software version, and this step can be omitted for other systems.

sudo apt-get update
sudo apt-get full-upgrade

Raspberry Pi OS and Kali display rotation

First check whether the KMS or FKMS driver is loaded on the system you are using.

Check method: In /boot/config.txt, check whether the line dtoverlay=vc4-kms-v3d or dtoverlay=vc4-fkms-v3d is turned on.

With KMS or FKMS driver loaded

Use the following command for display rotation:

sudo nano /etc/xdg/lxsession/LXDE-pi/autostart
#Enter the command corresponding to the display rotation angle at the end of the autostart file, and it will take effect after rebooting the system.
#0: rotate 0 degrees; 1: rotate 270 degrees; 2: rotate 180 degrees; 3: rotate 90 degrees
xrandr -o 1
No KMS or FKMS driver loaded

Use the following command for display rotation:

sudo nano /boot/config.txt
#Enter the command corresponding to the display rotation angle at the end of the config.txt file, and it will take effect after rebooting the system.
#0: rotate 0 degrees; 1: rotate 90 degrees; 2: rotate 180 degrees; 3: rotate 270 degrees
display_rotate=3

Ubuntu display rotation

First check whether the KMS or FKMS driver is loaded on the system you are using.

Check method: In /boot/firmware/config.txt, check whether the line dtoverlay=vc4-kms-v3d or dtoverlay=vc4-fkms-v3d is turned on.

With KMS or FKMS driver loaded

Use the following methods for display rotation.

Note: For different versions of Ubuntu systems, the interface may be different. Generally, you can find the Displays application and rotate it.

GPIO-HDMI-Manual-01.png

GPIO-HDMI-Manual-02.png

GPIO-HDMI-Manual-03.png

Execute the command to rotate the Ubuntu login interface. If the Ubuntu login interface is not opened, this step can be omitted:

#For 32-bit systems, execute the following command, replace your_user with the currently logged in user name
sudo cp /home/<your_user>/.config/monitors.xml /var/lib/lightdm/.config
#For 64-bit systems, execute the following command, replace your_user with the currently logged in user name
sudo cp /home/<your_user>/.config/monitors.xml /var/lib/gdm3/.config
sudo chown gdm:gdm /var/lib/gdm3/.config/monitors.xml

Execute the following command to rotate the command line display during startup:

sudo nano /boot/firmware/cmdline.txt
#Add the following code at the end to rotate the command line
#rotate 0 degrees
fbcon=rotate:0 video=HDMI-A-1:[email protected],rotate=0
#Rotate 90 degrees
fbcon=rotate:3 video=HDMI-A-1:[email protected],rotate=90
#rotate 180 degrees
fbcon=rotate:2 video=HDMI-A-1:[email protected],rotate=0
#rotate 270 degrees
fbcon=rotate:1 video=HDMI-A-1:[email protected],rotate=270
No KMS or FKMS driver loaded

Rotation is relatively simple, just use the following command to display rotation:

sudo nano /boot/firmware/config.txt
#Enter the command corresponding to the display rotation angle at the end of the config.txt file, and it will take effect after rebooting the system.
#0: rotate 0 degrees; 1: rotate 90 degrees; 2: rotate 180 degrees; 3: rotate 270 degrees
display_rotate=3

Use with Jetson Nano

1) Connect the Only Power port of the LCD to the USB port of the PC.
2) Connect the Display port of the LCD to the HDMI port of the PC.

Others

Control Backlight

The brightness can be adjusted by the buttons on the side。

3.2H-2.jpg

FAQ

 Answer:
  • Check if the HDMI port of your PC works normally
  • Disconnect other display and test it again
  • You need to first connect the power and then the HDMI port
  • You may need to restart the PC
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 Answer:
Add the following command to /boot/config.txt
disable_splash=1


 Answer:

Replace the custom image with the image in this directory /usr/share/plymouth/themes/pix/splash.png


Anti-Piracy

Since the first-generation Raspberry Pi released, Waveshare has been working on designing, developing, and producing various fantastic touch LCDs for the Pi. Unfortunately, there are quite a few pirated/knock-off products in the market. They're usually some poor copies of our early hardware revisions, and comes with none support service.

To avoid becoming a victim of pirated products, please pay attention to the following features when purchasing:

RPi-LCD-Anti-Piracy.jpg

(Click to enlarge)

Beware of knock-offs

Please note that we've found some poor copies of this item in the market. They are usually made of inferior materials and shipped without any testing.

You might be wondering if the one you're watching or you've purchased in other non-official stores is original, feel free to contact us.