Difference between revisions of "7inch HDMI LCD"

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(Related Software)
 
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===User Manual===
 
===User Manual===
 
*[https://www.waveshare.com/w/upload/a/a8/7inch_HDMI_LCD_User_Manual_EN.pdf 7inch HDMI LCD User Manual]
 
*[https://www.waveshare.com/w/upload/a/a8/7inch_HDMI_LCD_User_Manual_EN.pdf 7inch HDMI LCD User Manual]
=== Related Software ===
+
=== Software ===
 
*[http://www.waveshare.com/w/upload/d/d7/Panasonic_SDFormatter.zip Panasonic SDFormatter]
 
*[http://www.waveshare.com/w/upload/d/d7/Panasonic_SDFormatter.zip Panasonic SDFormatter]
 
*[http://www.waveshare.com/w/upload/7/76/Win32DiskImager.zip Win32DiskImager]
 
*[http://www.waveshare.com/w/upload/7/76/Win32DiskImager.zip Win32DiskImager]
 +
*[http://www.waveshare.com/w/upload/5/56/Putty.zip PuTTY]
 +
 
=== Driver ===
 
=== Driver ===
 
{{RPI LCD DRIVER}}
 
{{RPI LCD DRIVER}}

Latest revision as of 09:45, 28 July 2020

7inch HDMI LCD
1024×600
7inch-HDMI-LCD-1.jpg

7inch Resistive Touch Screen LCD, HDMI interface, Designed for Raspberry Pi
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Primary Attribute
Category: OLEDs / LCDs, LCD, Raspberry Pi LCD
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Brand: Waveshare
Website
English: 7inch HDMI LCD
Chinese: 7inch HDMI LCD
Onboard Interfaces
RPi I/Os HDMI
Related Products

Introduction

7inch Resistive Touch Screen LCD, HDMI interface, Designed for Raspberry Pi.

More

Features

  • 800×480 hardware resolution.
  • Capacitive touch control.
  • It is compatible and can be directly inserted in any version of Raspberry Pi (For the Raspberry Pi 1 B and Raspberry Pi Zero, HDMI cable is required and should be purchase separately).
  • Provide driver. (support Raspbian\Ubuntu\Kali and Retropie system).
  • Can be used as a computer monitor without touch function (HDMI cable is required and should be purchase separately).
  • Only used for display, does not occupy any I/O resources (using touch function will occupy I/O resources).
  • Support backlight control, more power saving.

Button description

7inch HDMI LCD APP02.png

Power: Turn on or turn off the LCD screen.

Menu: Open the OSD menu (when using the menu, this button can be served as Confirm)

Up/Left: Direction button.

Down/Right: Direction button.

Return: Close the OSD menu.

  • If the LCD is not in use for a long time, you can press the Power button to turn off the LCD and lower the power consumption.
  • You can press the Menu button to open the OSD menu as the figure shown, then press the direction button to select. After selection, exit the OSD menu by pressing the "Return button".Some of the options are reserved and without any effect, e.g. in fact the Volume option won't affect the volume.

7inch HDMI LCD APP01.png

Getting Started

Hardware Connection

Hardware connection for Raspberry Pi Model A+/B+/2 B/3 B
Plug the HDMI Connector
  1. Plug the LCD to your Raspberry Pi:
    • There are 40 pins on Raspberry Pi Model A+/B+/2 B/3 B but only 26 pins on the LCD, so you should pay attention to connecting the pins to your Pi accordingly.
  2. Connect the HDMI Connector to both the HDMI interfaces on the LCD and the Pi.
    • You should connect the LCD to Raspberry Pi Model B or Raspberry Pi Zero with an HDMI cable rather than an HDMI Connector.
  3. Turn on the "backlight" switch on the back of the LCD.

You can enable the touch in two ways: Method 1. install 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

Description: The driver can be downloaded from github

git clone https://github.com/waveshare/LCD-show.git


1) Download the Raspbian / Ubuntu Mate image from Raspberry Pi website, and unzip it to get the .img file.

2) Connect your micro SD card to the PC and write the image to the card using Win32DiskImager. How to write an image to a micro SD card for your Pi? See RPi Image Installation Guides for more details)

3) Copy the LCD driver to the micro SD card (or copy the driver to the system of Pi using a USB drive).

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 1024 600 60 6 0 0 0

If you use the LCD with Raspberry Pi 4B, you need to remove line dtoverlay=vc4-fkms-V3D from config.txt file

5) The LCD will display after booting up. Then open a terminal to install the touch driver which can be found in the /boot/ directory.

git clone https://github.com/waveshare/LCD-show.git 
cd LCD-show/
chmod +x LCD7-1024x600-show
./LCD7-1024x600-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, or you can download it from #Image. 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.

Screen orientation settings

After touch driver installed, the screen orientation can be set by these commands:

  • 0 degree rotation
cd LCD-show/
./LCD7-1024x600-show 0
  • 90 degree rotation
cd LCD-show/
./LCD7-1024x600-show 90
  • 180 degree rotation
cd LCD-show/
./LCD7-1024x600-show 180
  • 270 degree rotation
cd LCD-show/
./LCD7-1024x600-show 270

The rotation command under Raspbian-lite is as follows:

cd LCD-show/
sudo ./LCD7-1024x600-show lite X
#X can be 0, 90, 180 and 270, represents LCD rotation 0 degree, 90 degree, 180 degree and 270 degree respectively.

Touch screen calibration

  • Install the X server first
sudo apt-get install xserver-xorg-input-evdev
sudo cp -rf /usr/share/X11/xorg.conf.d/10-evdev.conf /usr/share/X11/xorg.conf.d/45-evdev.conf
sudo reboot
  • This LCD can be calibrated using a program called xinput_calibrator which can be downloaded from Xinput-calibrator_0.7.5-1_armhf
  • Extract and copy the software Xinput-calibrator_0.7.5-1_armhf.deb to the Raspbian of your Pi.
  • Install it with the commands:
sudo dpkg -i -B xinput-calibrator_0.7.5-1_armhf.deb 
  • Click the "Menu" button on the task bar, choose "Preference" -> "Calibrate Touchscreen".
  • Finish the touch calibration following the prompts. Maybe rebooting is required to make calibration active.
  • You can create a 99-calibration.conf file to save the touch parameters (not necessary if file exists).
/ect/X11/xorg.conf.d/99-calibration.conf
  • Save the touch parameters (may differ depending on LCD) to 99-calibration.conf, as shown in the picture:

5inch HDMI LCD FAQ1.jpg

Right click emulation

Note: The new version of the driver has added "long-press right button function" by default.

  • Edit the 99-calibration.conf file.
sudo nano /etc/X11/xorg.conf.d/99-calibration.conf
  • Append the following lines between "Section" and "EndSection":
Option "EmulateThirdButton" "1"
Option "EmulateThirdButtonTimeout" "750"
Option "EmulateThirdButtonMoveThreshold" "100"

RPILCD-RIGHT-CLICK.png

  • Exit with save and reboot the system.
reboot

Tips

Display images on Linux console

  • Install the fbi software.
sudo apt-get install fbi
  • Save image files to a specified direction (/dev/fb0 for example) and display them with:
fbi -T 2 -d /dev/fb0 -noverbose -a XXX.jpg

Play videos

  • Install the mplayer software.
sudo apt-get install mplayer
  • Save video files to the current directory and you can play them with:
mplayer XXX.mp4

Install virtual keyboard

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
}

RPILCD-INSTALL-KEYBOARD01.png

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

Interface

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

Resources

User Manual

Software

Driver

The driver can be downloaded from github

git clone https://github.com/waveshare/LCD-show.git

Image

Description: if you felt hard to install driver, try the image with driver pre-installed.

LCD Panel Dimension

FAQ

Question:
Why does the touchscreen not work well?
Answer:

Now, we only provide touch screen drivers for Raspbian and Ubuntu Mate. How to install the driver? See:#Method_1._Driver_installation


Question:
Why does the image provided on the wiki does not work on my Pi?
Answer:
  • The image provided may differ depending on batches, however, some Images are just available for Pi 2 (or before, but not for Pi 3). In such cases, you can download the latest version from Raspberry Pi website and install the driver. See:#Method_1._Driver_installation
  • Make sure the hardware connection is correct and connects fine.
  • Make sure you've written the image to your SD card using the software File:Win32DiskImager.zip rather than just copy and paste.
  • When the Raspberry Pi starts normally, the PWR light is always on and the ACT light is blinking. If you find that both lights are always on, it may be that the TF card failed to burn the image or the TF card is in poor contact with the Raspberry Pi.
  • It is strongly recommended to use a stand-alone 5V/3A power adapter because the USB port of PC might not have enough power to support the Pi and LCD.


Question:
Could I only connect the HDMI cable?
Answer:
No, the HDMI interface is only used for display. You also need to insert the GPIO for touching and power. BTW, you can also connect the external power adapter to the USB interface for power if LCD has an external power interface.


Question:
What is the working temperature of this LCD?
Answer:
The working temperature is 0°C -- 70°C


Question:
What is the working current for the 7inch HDMI LCD when it works normally?
Answer:
When working with 5V input, the current is about 200mA with backlight on and 30mA with backlight off.



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. Because of jet lag, our response may be late, you can just leave your questions, we will reply to you as soon as possible in working time.

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