Waveshare 7.9 inch IPS LCD Touch Screen, 400×1280 HDMI

Waveshare 7.9 inch IPS LCD Touch Screen, 400×1280 HDMI

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Product Link

Waveshare 7.9 inch IPS LCD Touch Screen, 400×1280 HDMIOpenELAB

Description

This product is a universal 7.9-inch HDMI display with a resolution of 400×1280. It can be used as a sub-display for the chassis and also supports Raspberry Pi and Jetson Nano.

Features

• 7.9-inch IPS screen, hardware resolution is 400×1280

• Zinc alloy shell, tempered glass panel, hardness up to 6H

• When used as a computer monitor, it supports Windows 11 / 10 / 8.1 / 8 / 7, driver-free

• When used with Raspberry Pi, it supports Raspberry Pi OS / Ubuntu / Kali and Retropie, driver-free

• When used with Jetson Nano, it supports Ubuntu and is driver-free.

• Support backlight control, more power saving

• Support 5-point capacitive touch control (touch version only)

Product Parameters

project	describe	unit
Product number	7.9inch Monitor
size	7.9	Inch
Viewing angle	170	You
Resolution	400×1280	Pixels
physical dimension	211.00(H)×73.00(V)×20.00(D)	mm
Display area	191.08(H)×60.40(V)	mm
IPS version color gamut	62%NTSC
Maximum brightness	550	cd/m²
Backlight adjustment method	Support physical dimming by button/HID software dimming
Contrast	900:1
Color Depth	16.7M
Refresh rate	60	Hz
Power supply interface	USB Type-C
Display Interface	HDMI interface

Electrical Specifications

parameter	Minimum	standard value	Maximum	unit	Note
Input voltage	4.75	5.00	5.25	IN	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: Input current must be ≥500mA, otherwise it will cause startup failure or abnormal display. Long-term abnormal state may cause permanent damage to the device. •Note 3: Please do not store the display in a high temperature and high humidity environment for a long time. The display must work within the limit value range, otherwise the display may be damaged.

Use with PC

Supports Windows 11 /10 / 8.1 / 8 / 7 systems.

Instructions:

1) Connect the LCD's TOUCH port to the PC's USB port.2) Connect the LCD's HDMI port to the PC's HDMI port.Note: This product is displayed in portrait mode by default, and the resolution (H×V) is 400×1280. You can change the software settings to horizontal mode.

Backlight control

You can control the backlight brightness by long pressing the switch button on the side of the LCD.

AIDA64 Setup Tutorial

① Hardware connection:

• Use a USB cable to connect the USB port of the host to the power port on the side of the screen for power supply

• Use an HDMI cable to connect the HDMI port of the host to the HDMI port on the side of the screen for display.

② Computer display settings:

• Right click on the computer desktop to enter "Display Settings"

• Select the corresponding display

• Adjust the display orientation to landscape and set the display mode to "Extend these displays" ③ AIDA64 software settings

• Download AIDA64 software from https://download.aida64.com/aida64extreme633.zip , unzip and open the aida64.exe application

• Right click to open the "AIDA64" software icon in the taskbar and enter "Show Sensor Information Panel"

• Right-click the blue area that pops up and enter the "Manage Sensor Dashboard"

• Import the engineering template provided by Weixue and drag the "Sensor Information Board" to the secondary screen to complete the setting.

Use with Raspberry Pi

Hardware Hookup

• Use a USB cable to connect the Type-C port of the screen to the Raspberry Pi for power supply and touch function (only the touch version has touch function)

• Use an HDMI cable to connect the HDMI port of the screen to the Raspberry Pi for display.

Software Setup

Supports Raspberry Pi OS / Ubuntu / Kali and Retropie systems.

When the LCD works on systems such as Raspberry Pi, the resolution must be set manually, otherwise it will cause display abnormalities.

1. Please download the latest version of the image from the Raspberry Pi official website . Download the compressed file to your PC and decompress it to get the .img file.2. Connect the TF card to the PC and use SDFormatter software to format the TF card.3. Open the Win32DiskImager software, select the system image prepared in step 1, and click write to burn the system image.4. After the burning 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 it and eject the TF card safely.

hdmi_group=2
hdmi_mode=87
hdmi_timings=400 0 220 32 110 1280 0 10 10 10 0 0 0 60 0 59510000 0

5) Connect the LCD's TOUCH port to the Raspberry Pi's USB port.6) Connect the LCD's HDMI port to the Raspberry Pi's HDMI port, power on the Raspberry Pi, and wait for a few seconds before the display starts to function normally.Note: This product is in portrait mode by default, with a resolution (H×V) of 400×1280. You can change the software settings to landscape mode, see #Rotation for details .

Display Rotation

If you are using the Bullseye/Buster system, you can rotate it in the following ways:

• 1. Enter Screen Configuration.

• 2. Set the rotation as shown below.

If you are using another version system, you can rotate it as follows:

• 1. Add the following statement to the config.txt file (the config file is located in the root directory of the TF card, i.e. /boot):

display_rotate=1 #1：90；2: 180； 3: 270

• 2. Save and restart the Raspberry Pi

sudo reboot

Touch to rotate

Since the touch direction is inconsistent after rotation, you need to follow the steps below to perform touch rotation: 1. Install libinput

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

If you installed Ubuntu system or Jetson Nano. The installation instructions are:

sudo apt install xserver-xorg-input-synaptics

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

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

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

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

4. Edit the file

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

Find the touchscreen part, add the following statement in it, and then save it.

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

Similar to the following picture: 5. Restart 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"

Set the screen to always on

Some customers want to display without being affected by the screen saver function. You can use the following settings to turn off the screen saver function. Open lightdm.conf

sudo nano /etc/lightdm/lightdm.conf

Modify lightdm.conf Find "xserver-command" under the [SeatDefaults] section, uncomment it, and modify it to the following:

#xserver-command=X

change into

xserver-command=X -s 0 -dpms

• -s # –Disable screen saver

• dpms Turn off power saving management

Restart

sudo reboot

Set the screen to turn off and on

Users can turn the screen on and off using the following commands.

vcgencmd display_power 0
vcgencmd display_power 1