Introduction

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

Features

• 7inch TFT screen. 800x480 hardware resolution
• Capacitive touch panel, support 5-point touch
• Supports Pi 4B/3B+/3A+/3B/2B/B+/A+. Another adapter board is required for CM3/3+
• DSI interface, refresh rate up to 60Hz.
• Supports Raspbian/Ubuntu/Kali and WIN 10 IoT, driver-free.
• Support backlight adjusts by software.

User guide

Hardware connection

• Connect the DSI interface of 7inch DSI LCD to the DSI interface of Raspberry Pi.
• For easy use, you can fix the Raspberry Pi on the backside of the 7inch DSI LCD with screws

Software setting

1) Download image (Raspbian, Ubuntu, Kali, or WIN 10 IOT) from the Raspberry Pi website. https://www.raspberrypi.org/software/

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.

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.

Rotation

To change the orientation of the display, you can modify /boot/config.txt file as below

• Open the file

sudo nano /boot/config.txt

• Add the following code at the end of config.txt

• Rotate 90 degrees

display_lcd_rotate=1
dtoverlay=rpi-ft5406,touchscreen-swapped-x-y=1,touchscreen-inverted-x=1

• Rotate 180 degrees

display_lcd_rotate=2
dtoverlay=rpi-ft5406,touchscreen-inverted-x=1,touchscreen-inverted-y=1

• Rotate 270 degrees

display_lcd_rotate=3
dtoverlay=rpi-ft5406,touchscreen-swapped-x-y=1,touchscreen-inverted-y=1

If you use Raspberry Pi 4, you need to remove the line: dtoverlay=cv4-fkms-V3D

• Save and reboot Raspberry Pi

sudo reboot

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 and the backlight is set to lightest if you set it to 255

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 a example for brightness adjusting, 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

Install virtual keyboard

Open a terminal and install it by the following command

sudo apt-get install matchbox-keyboard

After installing, you can click Accessories -> Keyboard to open the keyboard.

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

Resources

External guides

• Working with volumio

Software

• Panasonic SD formatter
• Win32DiskImager
• PuTTY