Difference between revisions of "7inch HDMI LCD (C)"
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− | + | <div class="tabber"> | |
+ | <div class="tabbertab" title="Introduction"> | ||
{{Infobox item | {{Infobox item | ||
|img=<div class="tabber"><div class="tabbertab" title="Standard Version"> | |img=<div class="tabber"><div class="tabbertab" title="Standard Version"> | ||
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|platform=Supports various systems | |platform=Supports various systems | ||
|category=[[:Category:OLEDs / LCDs|OLEDs / LCDs]], [[:Category:LCD|LCD]], [[:Category:Raspberry Pi LCD|Raspberry Pi LCD]] | |category=[[:Category:OLEDs / LCDs|OLEDs / LCDs]], [[:Category:LCD|LCD]], [[:Category:Raspberry Pi LCD|Raspberry Pi LCD]] | ||
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{{Product List| Mini PC/Raspberry Pi/Displays}} | {{Product List| Mini PC/Raspberry Pi/Displays}} | ||
}} | }} | ||
− | + | {{7inch HDMI LCD C Spec}} | |
− | + | </div> | |
− | + | <div class="tabbertab" title="Raspberry Pi Guides"> | |
− | + | {{7inch HDMI LCD C Pi Guides}} | |
− | + | </div> | |
− | + | <div class="tabbertab" title="Windows Guides"> | |
− | + | {{7inch HDMI LCD C Windows Guides}} | |
− | + | </div> | |
− | + | <div class="tabbertab" title="Resources"> | |
− | + | ==Documents== | |
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− | == | ||
*[https://www.waveshare.com/w/upload/c/cc/7inch_HDMI_LCD_%28C%29_User_Manual.pdf 7inch HDMI LCD (C) User Manual] | *[https://www.waveshare.com/w/upload/c/cc/7inch_HDMI_LCD_%28C%29_User_Manual.pdf 7inch HDMI LCD (C) User Manual] | ||
+ | *[http://www.waveshare.com/w/upload/3/33/7inch-hdmi-lcd-c-panel-dimension.pdf 7inch HDMI LCD (C) panel dimension] | ||
+ | *[https://www.waveshare.com/img/devkit/accessories/7inch-HDMI-LCD-Bicolor-Holder/7inch-HDMI-LCD-C-assemble.jpg Assembly tutorial with 7inch HDMI LCD (C) (with bicolor case)] | ||
+ | *[https://www.waveshare.com/w/upload/1/1f/Working_with_Volumio.pdf Woring with Volumio] | ||
+ | *[https://www.waveshare.com/w/upload/a/a5/7inch_HDMI_LCD_%28C%29_Certification.rar CE RoHS] | ||
=== 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] | *[http://www.waveshare.com/w/upload/5/56/Putty.zip PuTTY] | ||
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=== 3D Drawings === | === 3D Drawings === | ||
* [[:File:7inch_cad.zip|7inch HDMI LCD B/C Drawings]] | * [[:File:7inch_cad.zip|7inch HDMI LCD B/C Drawings]] | ||
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− | == | + | </div> |
+ | <div class="tabbertab" title="FAQ"> | ||
+ | ==FAQ== | ||
{{FAQ| What should I do if I connect to the PC with LCD and it cannot display normally? | {{FAQ| What should I do if I connect to the PC with LCD and it cannot display normally? | ||
| | | | ||
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*Some PC need to be restarted to make the LCD display normally. | *Some PC need to be restarted to make the LCD display normally. | ||
}} | }} | ||
+ | |||
+ | {{FAQ|How could I disable the rainbow screen? | ||
+ | |Please add the following command to /boot/config.txt | ||
+ | <pre> | ||
+ | dusable_splash=1 | ||
+ | </pre> | ||
+ | }} | ||
+ | |||
+ | {{FAQ|How to change the splash screen of Pi? | ||
+ | |You can repalce the splash.png from the path /usr/share/plymouth/themes/pix/splash.png to yours. | ||
+ | }} | ||
+ | |||
{{FAQ|What can I do if the thin red lines appear on the edge of the screen? | {{FAQ|What can I do if the thin red lines appear on the edge of the screen? | ||
| | | | ||
*Edit the config.txt and add this line at the end of the config.txt file: | *Edit the config.txt and add this line at the end of the config.txt file: | ||
− | + | <pre>hdmi_drive=1</pre> | |
}} | }} | ||
+ | |||
{{FAQ|What should I do if the screen has the ghosting problem? | {{FAQ|What should I do if the screen has the ghosting problem? | ||
|Adjust the adjustable potentiometer on the back. After the desktop is displayed, adjust the potentiometer to the best display effect, and then leave the screen for a while and wait for the ghost to disappear (it may take several hours). | |Adjust the adjustable potentiometer on the back. After the desktop is displayed, adjust the potentiometer to the best display effect, and then leave the screen for a while and wait for the ghost to disappear (it may take several hours). | ||
[[File:Potentiometer of 7C.jpg|200px]] | [[File:Potentiometer of 7C.jpg|200px]] | ||
|||}} | |||}} | ||
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{{FAQ|How to use the touch function when connected to a Linux PC which is non-designated? | {{FAQ|How to use the touch function when connected to a Linux PC which is non-designated? | ||
|You can try to compile the universal touch driver "hid-multitouch" into the kernel, which generally can make the touch function work. | |You can try to compile the universal touch driver "hid-multitouch" into the kernel, which generally can make the touch function work. | ||
}} | }} | ||
+ | |||
{{FAQ|Can the brightness of the 7inch HDMI LCD (C) be adjusted by modifying the resistance? | {{FAQ|Can the brightness of the 7inch HDMI LCD (C) be adjusted by modifying the resistance? | ||
− | |The default brightness has been adjusted to the highest, you can reduce the screen brightness by increasing the resistance of these two resistors in the picture below. | + | |The default brightness has been adjusted to the highest, you can reduce the screen brightness by increasing the resistance of these two resistors in the picture below.<br /> |
+ | The picture below shows the Rev3.1 version, which is similar to other versions.<br /> | ||
+ | :[[File:7inch HDMI LCD FAQ02.jpg|400px]] | ||
+ | |||}} | ||
− | + | {{FAQ| How to disable the bootloader message while booting if it displays abnormally? | |
+ | :[[File:7inchC ghost.png|400px]] | ||
+ | |Please run the following command to modify | ||
+ | <pre> | ||
+ | sudo -E rpi-eeprom-config --edit | ||
+ | </pre> | ||
+ | Change the DISABLE_HDMI value from 0 to 1, or add the line: | ||
+ | :[[File:7inchC modification.png|400px]] | ||
+ | }} | ||
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{{FAQ|What is the working current for the 7inch HDMI LCD (C) when it works normally? | {{FAQ|What is the working current for the 7inch HDMI LCD (C) when it works normally? | ||
− | |Using 5V power supply, the working current of turning on the backlight is about 490mA, and the working current of turning off the backlight is about 90mA. | + | |Using a 5V power supply, the working current of turning on the backlight is about 490mA, and the working current of turning off the backlight is about 90mA. |
}} | }} | ||
− | + | </div> | |
− | + | <div class="tabbertab" title="Support"> | |
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− | == | ||
{{Service02}} | {{Service02}} | ||
− | + | </div></div> | |
[[Category:OLEDs / LCDs|OLEDs / LCDs]] [[Category:LCD|LCD]] [[Category:Raspberry Pi|Raspberry Pi]] [[Category:Raspberry Pi LCD|Raspberry Pi LCD]] | [[Category:OLEDs / LCDs|OLEDs / LCDs]] [[Category:LCD|LCD]] [[Category:Raspberry Pi|Raspberry Pi]] [[Category:Raspberry Pi LCD|Raspberry Pi LCD]] |
Revision as of 03:46, 8 December 2021
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Overview
7-inch HDMI display, with a resolution of 1024 × 600 and a capacitive touch panel, which supports Raspberry Pi and can also be used as a computer monitor.
More |
Features
- 7-inch IPS screen with a hardware resolution of 1024 × 600.
- 5-point capacitive touch control.
- When used with Raspberry Pi, supports Raspberry Pi OS / Ubuntu / Kali and Retropie
- Use as a computer monitor, it supports Windows 11 / 10 / 8.1 / 8 / 7, five-point touch, no need to install any drivers.
- Support Ubuntu when working with Jetson Nano.
- Support backlight control, more power saving.
Specification
Item | Description | Unit |
---|---|---|
Model | 7inch HDMI LCD (C) | / |
Size | 7.0 | Inch |
Viewing Angle | 170 | Deg |
Resolution | 1024×600 | Pixels |
Dimension | 164.90(H)×106.96(V)×8(D) | mm |
Display Area | 154.21(H)×85.92(V) | mm |
Pixel Pitch | 0.1506(H) x 0.1432(V) | mm |
Color Gamut | 45% | NTSC |
Max Brightness | 300 | cd/m² |
Contrast | 800:1 | / |
Backlight Adjustment | PWM Software Adjustment | / |
Refresh Rate | 60 | Hz |
Display Interface | Standard HDMI interface | / |
Power Port | 5V | / |
Power Consumption | 2.5 | Watt |
Electrical Parameters
Parameter | Min. Value | Standard Value | Max. Value | Unit | Note |
---|---|---|---|---|---|
Input Voltage | 4.75 | 5.00 | 5.25 | V | Note 1 |
Input Current | 500 | 500 | TBD | mA | Note 2 |
Operating Temperature | 0 | 25 | 60 | ℃ | Note 3 |
Storage Temperature | -10 | 25 | 70 | ℃ | Note 3 |
•Note 1: Input voltage exceeding the maximum value or improper operation may cause permanent damage to the device.
•Note 2: The input current should be ≥500mA, otherwise it will lead to start-up failure or abnormal display, and a long time in an abnormal state may cause permanent damage to the device.
•Note 3: Please do not put the display in a high temperature and high humidity storage environment for a long time, the display needs to work within the limit value, otherwise it will be possible to damage the display.
EDID Sequence Parameters
If the system of the main control board can automatically identify the EDID for display, there is no need to set the relevant timing parameters additionally.
Otherwise, you can refer to the following EDID settings:
Pixel Clock | H Addressable | H Blanking | V Addressable | V Blanking | H Front Porch | H Sync Width | V Front Porch | V Sync Width | H Image Size | V Image Size | H Border | V Border |
---|---|---|---|---|---|---|---|---|---|---|---|---|
49.00 | 1024 | 288 | 600 | 24 | 48 | 96 | 3 | 10 | 154 | 86 | 0 | 0 |
Interface Introduction
- ① Standard HDMI interface:control the display.
- ② micro USB interface:for power supply and touch.
- ③ Backlight On/Off:for backlight control.
About the version
Rev4.1 version
- Update the USB touch protocol to improve compatibility.
- Brightness is adjustable by the USB interface.
- Modify the drive circuit to enhance the anti-interference ability.
- Change the touch panel color to black.
Rev3.1 version
- The Rev3.1 version mainly changes the touch chip of the Rev2.2 version from GT811 to GT911. The touch effect is better, and the anti-interference ability is enhanced at the same time.
- This version is fully compatible with Rev2.1 and Rev2.2, and users can replace it with confidence.
Rev2.2 version
- Rev2.2 version mainly adds a VCOM adjustable potentiometer and related circuits of electromagnetic compatibility on the basis of Rev2.1.
- This version is fully compatible with the Rev2.1 version, and users can replace it with confidence.
Rev2.1 version:
- Upgrade to IPS screen, with a larger viewing angle and a clearer display effect, I believe you will like it.
- Use standard HID protocol, you can transplant your own system conveniently.
- Using with Raspberry Pi, it supports Raspbian / Ubuntu / Kali / Retropie and WIN10 IoT, single touch, no need to install any drivers.
- Using as a computer monitor, it supports Windows 10 / 8.1 / 8 / 7, five-point touch, no need to install any drivers.
Rev1.1 version:
- Using private HID protocol, it is difficult to transplant to your own system.
- Using Raspberry Pi, you need to install a driver when the display connects to Raspbian or Ubuntu systems. and it doesn't support Kali, Retropie, and Windows 10 IoT.
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:
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.
How to use
Working with Raspberry Pi
Hardware Connection
- 1. Connect the Touch interface to the USB interface of the Raspberry Pi.
- 2. Connect the HDMI interface to the HDMI interface of the Raspberry Pi.
Software Setting
This LCD can support Raspberry Pi OS / Ubuntu / Kali / Retropie systems. When the LCD works on systems such as Raspberry Pi OS, the resolution must be set manually, otherwise, it will cause an abnormal display.
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, and use SDFormatter software to format the TF card.
3) Open the Win32DiskImager software, select the system image downloaded in step 1, and click 'Write' to write the system 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.
hdmi_group=2 hdmi_mode=87 hdmi_cvt 1024 600 60 6 0 0 0 hdmi_drive=1
5) Insert the TF card into the Raspberry Pi, power on it, and wait a few seconds for a normal display.
Backlight Adjustment
wget https://files.waveshare.com/upload/0/01/Brightness-HDMI.zip unzip Brightness-HDMI.zip cd Brightness-HDMI sudo chmod +x install.sh ./install.sh
Working with PC
Support Windows 11 / 10 / 8.1 / 8 / 7
1) Connect the Touch interface of the LCD to the USB interface of the PC. Wait for a while, the windows will automatically recognize the touch function.
2) Connect the HDMI interface of the LCD to the HDMI interface of the PC. Wait for a while, the windows will automatically recognize the display function.
Note:
1) When the computer is connected to multiple monitors at the same time, the touch effect of the 7-inch LCD will be applied to the main screen by default. If you need to specify the touch to the secondary screen, see #Calibration touch on Win 10 PC
2) Some of PC cannot support the HDMI screen Hot Plug. In this case, restarting the PC can solve.
3) Sometimes LCD will flicker because of undersupplying from the USB cable of the PC. You need to connect an external power supply (5V/2A) to the DC port.
Brightness Adjustment on Windows via Software
- 1. Download and unzip USB Brightness Adjustment Demo.
- 2. Enter "WS_USB_Brightness_Win.exe", and then Windows can recognize it normally and prompt "the device is connected". You can drag the slider to adjust the backlight.
Calibration touch on Win 10 PC
Take the windows10 system as an example:
- 1. Enter the Windows settings of the system, type in the search bar, and click "Calibrate the screen for pen or touch input" (as shown in the picture below)
- 2. Click "Setup" in the pop-up "Tablet PC Settings" interface:
- 3. The following text prompt will appear on the screen. Please tap the touch screen with your finger, and the computer will recognize it as a touch screen.
【Note】If the touch screen is blank, press the "Enter" key, and the text prompt will switch to the touch screen. (The screen which displays the text prompt will be used as a touch screen!)
Dimensions
Documents
- 7inch HDMI LCD (C) User Manual
- 7inch HDMI LCD (C) panel dimension
- Assembly tutorial with 7inch HDMI LCD (C) (with bicolor case)
- Woring with Volumio
- CE RoHS
Software
3D Drawings
FAQ
- 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 LCD display normally.
{{{5}}}
dusable_splash=1
{{{5}}}
{{{5}}}
- Edit the config.txt and add this line at the end of the config.txt file:
hdmi_drive=1
{{{5}}}
{{{5}}}
{{{5}}}