7inch DSI LCD

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7inch DSI LCD
7inch-DSI-LCD-1.jpg

7inch capacitive Touch Screen LCD for Raspberry Pi, DSI Interface
7inch DSI LCD (with case A)
7inch-DSI-LCD-with-case-A-2.jpg

7inch capacitive Touch Screen LCD for Raspberry Pi, DSI Interface, with protection case
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Introduction

7inch Capacitive Touch Display for Raspberry Pi, 800 × 480, TFT Wide Angle, MIPI DSI Interface.

Features

  • 7inch TFT screen with a hardware resolution of 800 x 480.
  • Capacitive touch panel supports 5-point touch.
  • Supports Pi 4B/3B+/3A+/3B/2B/B+/A+. Another adapter board is required for CM3/3+/4.
  • As it directly drives LCD by the DSI interface of Raspberry Pi, the refreshing rate is up to 60Hz.
  • Supports Raspberry Pi OS / Ubuntu / Kali and Retropie.
  • Support backlight adjusts by software.

User guide

Hardware connection

1) Connect the DSI interface of 7inch DSI LCD to the DSI interface of Raspberry Pi with a 15PIN FPC cable.

2) Use the 2PIN power cable to connect the power interface of the LCD to the 40PIN GPIO interface of the Raspberry Pi, as below:

7inch-DSI-LCD-50.jpg

3) You can fix the Raspberry Pi on the backside of the 7inch DSI LCD with screws.
The installation effect is shown in the following figure:

7inch-DSI-LCD-5.jpg

Software setting

1) Download image from the Raspberry Pi website.

2) Download the compressed file to the PC, and unzip it to get the .img file.

3) Connect the TF card to the PC, use SDFormatter.exe software to format the TF card.

4) Open the Win32DiskImager.exe software, select the system image downloaded in step 2, and click ‘Write’ to write the system image.

dtoverlay=vc4-kms-v3d
dtoverlay=vc4-kms-dsi-7inch

5) After the image has finished writing, save, and quit the TF card safely.

6) Power on the Raspberry Pi and wait for a few seconds until the LCD displays normally. And the touch function can also work after the system starts.


Backlight Controlling

  • Open a terminal and type the following command to adjust the brightness. Note: If the command reports the 'Permission denied' error, please switch to the 'root' user mode and execute it again.
echo X > /sys/class/backlight/rpi_backlight/brightness
X can be value in range 0~255. The backlight is darkest if you set it to 0. If you set it to 255, the backlight is the lightest.
echo 100 > /sys/class/backlight/rpi_backlight/brightness
echo 0 > /sys/class/backlight/rpi_backlight/brightness
echo 255 > /sys/class/backlight/rpi_backlight/brightness
  • We also provide an example for brightness adjusting (This program is only for Raspberry Pi OS system), you can download and install it by following commands:
wget https://www.waveshare.net/w/upload/3/39/Brightness.tar.gz
tar -xzf Brightness.tar.gz
cd brightness
./install.sh
After connecting, you can choose Menu -> Accessories -> Brightness to open the adjustment software
Top-2.png

Note: If you use the 2021-10-30-raspios-bullseye-armhf image or the laster version, please add the line dtoverlay=rpi-backlight to the config.txt file and reboot.


Sleep

Run the following commands on the Raspberry Pi terminal, and the screen will enter sleep mode:

xset dpms force off

Disable touching

If you want to disable the touch function, you can modify the config.txt file, add the following line to the file, and reboot.

disable_touchscreen=1

Note: After adding the command, it needs to be restarted to take effect.

FAQ

 Answer:
Please configure as below and try to use the camera again.
sudo raspi-config

Choose Advanced Options -> Glamor -> Yes(Enabled) -> OK -> Finish -> Yes(Reboot)

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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.


Support

If you require technical support, please go to the Support page and open a ticket.