4.3inch HDMI LCD (B)

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4.3inch HDMI LCD (B)
4.3inch-HDMI-LCD-B-1.jpg

4.3inch capacitive Touch Screen LCD, HDMI interface, supports various systems
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Primary Attribute
Category: OLEDs / LCDs, LCD, Raspberry Pi LCD
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Brand: Waveshare
Website
English: 4.3inch HDMI LCD (B)
Chinese: 4.3inch HDMI LCD (B)
Onboard Interfaces
USB HDMI
Related Products

Introduction

4.3inch Capacitive Touch Screen LCD, HDMI interface, with a resolution of 800×480 and a capacitive touch panel, which supports Raspberry Pi and can also be used as a computer monitor.

Features

  • IPS screen, 800x480 hardware resolution, configurable by software (up to 1920 x 1080)
  • Supports popular mini PCs such as Raspberry Pi, BB Black, Banana Pi, as well as general desktop computers
  • When works with Raspberry Pi, supports Raspbian/Ubuntu/Kali/Retropie/WIN10 IOT, driver free
  • When work as a computer monitor, supports Windows 10/8.1/8/7, five-points touch, and driver free
  • Multi languages OSD menu, for power management, brightness/contrast adjustment, etc.
  • 3.5mm audio jack, speaker connector, supports HDMI audio output

How to use

Working with Windows PC

This LCD can support Windows 7/8 / 8.1 / 10 system.

1)Turn on the backlight switch on the backside of LCD.

2)Connect the Touch interface of LCD to the USB port of PC. Wait for a while, the windows will automatically recognize the touch function.

3)Connect the HDMI (Display) interface of LCD to the HDMI port of PC. About 10s later, you can see the LCD display properly.

4)Connect earphone to HP interface or 8Ω 5W Speaker to Speaker interface of LCD if audio output is required.

Note:

  • When the computer is connected to several different displays at the same time, only this LCD can be used to control the cursor on the main display, so we recommended to set this LCD as the main display.
  • Hot-Plug isn't supported by some PC, you can try to restart if LCD doesn't display after connecting

Working with Raspberry Pi

This LCD can support Raspbian / Ubuntu / Kali / Retropie and WIN10 IoT systems. When the LCD works on systems such as Raspberry Pi, the resolution must be set manually, otherwise, it will cause abnormal display. There is no such problem when the LCD works on the PC version of Windows.

Please download the latest version of the image on the Raspberry Pi official website.

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

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

3) Open the Win32DiskImager.exe software, select the system image downloaded in step 1, and click‘Write’ to write the system image. (refer to RPi Image Install about how to write image)

4) 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_cvt 800 480 60 6 0 0 0

【Note】There should not be spaces in both sides of equal-sign.

If the LCD cannot work with statements above when working with Pi 4, you can comment/remove statement dtoverlay=cv4-fkms-V3D on config.txt file and try again.

5) Insert the TF card into the Raspberry Pi

6) Connect the Touch interface of the LCD to the USB interface of the Raspberry Pi.

7) Connect the HDMI interface of the LCD to the HDMI interface of the Raspberry Pi, power on the Raspberry Pi, and wait for a few seconds until the LCD displays normally.

Configure orientation (Working with Raspberry Pi)

Display Rotating

Add this statement in the config.txt file (the config file is located in the root directory of the TF card, which is named /boot):

display_rotate=1 #1:90;2: 180; 3: 270

Note: For Raspberry Pi 4, you need to comment out dtoverlay=vc4-fkms-V3D.

#dtoverlay=vc4-fkms-V3D.

And then restart the Raspberry Pi after saving.

sudo reboot

Touch Rotating

After the display is rotated, the position of touch is incorrect because the touch doesn’t change with the display angle. So the touch also needs to be modified.

1.Install libinput.

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

If the system you installed is Ubuntu or Jetson Nano. The installation code is:

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 you created just now.

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

4.Edit this file.

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

Find the part of the touchscreen, add the following statement inside, and then save the file.

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

Similar to the picture below:

Touch roate.jpg

5. Restart the Raspberry Pi.

sudo reboot

After completing these steps. The LCD could rotate 90 degrees both display and touch function.

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"

Keys Introduction

4.3inch HDMI LCD B 01.png

  • Power: Open/Close LCD display (backlight)
  • Menu: Open OSD menu (It can also work as "OK button" after entering the menu )
  • Up/Left: Direction button
  • Down/Right: Direction button
  • Exit: it can also work as Return after entering the menu

You can use the "Power" button to close the LCD display for reducing consumption if it will be idle for a long time.

Open the OSD menu by press the "Menu" button, then use the "OK button" and "Direction button" to change the configuration, and finally use "Return button" to exit.

FAQ

Question:
What should I do if I connect to the PC with LCD and it cannot display normally?
Answer:
  • Make sure that the HDMI interface of the PC can output normally.
  • The PC only connects to this LCD as a monitor without others.
  • You should connect the touch cable first and then the HDMI cable.
  • Some PC need to be restarted to make the 7inch HDMI LCD display normally.

Note: The PC must use windows system.


Question:
How to use the touch function when connected to a Linux PC which is non-designated?
Answer:
You can try to compile the universal touch driver "hid-multitouch" into the kernel, which generally can make the touch function work.


Question:
What is the working current of 4.3inch HDMI LCD (B)?
Answer:
With 5V power input. the working current of LCD is 490mA with backlight turn on


Question:
What is the working temperature of 4.3inch HDMI LCD (B)?
Answer:
The working temperature is 0°C -- 70°C.



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

Please contact us by Email/Skype/WeChat for technology support. Our response may be delay, you can just leave your questions, we will reply to you as soon as possible in working time.

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