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4.3inch Resistive Touch Screen LCD, HDMI interface, Designed for Raspberry Pi.
V1:
Note: This product can only work on a Raspberry Pi but not work on a PC. That is, if the HDMI of the LCD is connected to the HDMI on a PC, the LCD will not display anything.
Hardware connection for Raspberry Pi Model A+/B+/2 B/3 B
Hardware connection for Raspberry Pi Zero
You can enable the touch in two ways: Method 1. install the driver to your Raspbian/Ubuntu Mate OS. Method 2. use the Ready-to-use image file of which LCD driver was pre-installed.
Method 1. Driver installation
Please download the latest version of the image on the Raspberry Pi official website. (Raspbian/Ubuntu Mate/Kali or Retropie)
1) Download the compressed image file to the PC, and unzip it to get the .img file.
2) Connect the TF card to the PC, and open the Win32DiskImager. software, select the system image downloaded in step 1 and click‘Write’ to write the system image. ( How to write an image to a micro SD card for your Pi? See RPi Image Installation Guides for more details)
3) After the image has finished writing, open the config.txt file in the root directory of the TF card. Add the following code at the end of config.txt, then save and quit the TF card safely.
max_usb_current=1 hdmi_group=2 hdmi_mode=87 hdmi_timings=480 0 1 41 2 272 0 2 10 2 0 0 0 60 0 9009000 3 display_rotate=2 hdmi_drive=2
If the LCD cannot work with commands above when connecting to Pi 4, please comment/remove the statement dtoverlay=vc4-fkms-V3D on /boot/config.txt and try again.
4) Connect the TF card to the Raspberry Pi, start the Raspberry Pi.The LCD will display after booting up, and then log in to the Raspberry Pi terminal (you can connect the Raspberry Pi to the HDMI display or log in remotely with SSH).
5) Then open the terminal of Raspberry Pi to install the touch driver which can be found in the /boot/ directory. Note: The Raspberry Pi must be connected to the network, or else the touch driver won't be successfully installed.
git clone https://github.com/waveshare/LCD-show.git cd LCD-show/
chmod +x LCD43-show sudo ./LCD43-show
Touch function will work after restart. For ease of use, you can set the screen orientation, see: #Screen orientation settings.
Method 2. Using Ready-to-use image
The image file with pre-installed driver is located in the IMAGE directory of the CD. Extract the .7z file and you will get an .img file. Write the image to your micro SD card (How to write an image to a micro SD card for your Pi? See RPi Image Installation Guides for more details). Then insert the card to your Pi, power up and enjoy it.
After touch driver installed, the screen orientation can be set by these commands:
cd LCD-show/ sudo ./LCD43-show 0
cd LCD-show/ sudo ./LCD43-show 90
cd LCD-show/ sudo ./LCD43-show 180
cd LCD-show/ sudo ./LCD43-show 270
cd LCD-show/ sudo ./LCD43-show lite 0
cd LCD-show/ sudo ./LCD43-show lite 90
cd LCD-show/ sudo ./LCD43-show lite 80
cd LCD-show/ sudo ./LCD43-show lite 270
This LCD can be calibrated through the xinput-calibrator program. Note: The Raspberry Pi must be connected to the network, or else the program won't be successfully installed.
sudo apt-get install xinput-calibrator
sudo mkdir /etc/X11/xorg.conf.d sudo nano /etc/X11/xorg.conf.d/99-calibration.conf
1.Execute the following code to install the corresponding software.
sudo apt-get update sudo apt-get install matchbox-keyboard sudo nano /usr/bin/toggle-matchbox-keyboard.sh
2.Copy the following content to toggle-matchbox-keyboard.sh, save and exit.
#!/bin/bash #This script toggle the virtual keyboard PID=`pidof matchbox-keyboard` if [ ! -e $PID ]; then killall matchbox-keyboard else matchbox-keyboard & fi
3.Execute the following code.
sudo chmod +x /usr/bin/toggle-matchbox-keyboard.sh sudo mkdir /usr/local/share/applications sudo nano /usr/local/share/applications/toggle-matchbox-keyboard.desktop
4.Copy the following content to toggle-matchbox-keyboard.desktop, save and exit.
[Desktop Entry] Name=Toggle Matchbox Keyboard Comment=Toggle Matchbox Keyboard` Exec=toggle-matchbox-keyboard.sh Type=Application Icon=matchbox-keyboard.png Categories=Panel;Utility;MB X-MB-INPUT-MECHANSIM=True
5.Execute the following code, this step must use the "pi" user authority, if you use the administrator authority, the file will not be found.
sudo nano /etc/xdg/lxpanel/LXDE-pi/panels/panel
6.Find the code similar to the following.(the icon of different versions may be different)
Plugin { type = launchbar Config { Button { id=lxde-screenlock.desktop } Button { id=lxde-logout.desktop } }
7. Add the following code to add a Button item, as shown below.
Button { id=/usr/local/share/applications/toggle-matchbox-keyboard.desktop }
8. Execute the following code to restart the system, you can see a virtual keyboard icon in the upper left corner of the LCD.
sudo reboot
The pins labeled "NC" below means that those pins of Raspberry Pi are not occupied by the LCD, and the user can use them for other applications.
PIN NO. | SYMBOL | DESCRIPTION |
---|---|---|
1, 17 | 3.3V | Power positive (3.3V power input) |
2, 4 | 5V | Power positive (5V power input) |
3, 5, 7, 8, 10, 11, 12, 13, 15, 16, 18, 24 | NC | NC |
6, 9, 14, 20, 25 | GND | Ground |
19 | TP_SI | SPI data input of Touch Panel |
21 | TP_SO | SPI data output of Touch Panel |
22 | TP_IRQ | Touch Panel interrupt, low level while the Touch Panel detects touching |
23 | TP_SCK | SPI clock of Touch Panel |
26 | TP_CS | Touch Panel chip selection, low active |
The driver can be downloaded from github
git clone https://github.com/waveshare/LCD-show.git
Description: if you felt hard to install driver, try the image with driver pre-installed.