Difference between revisions of "7 Inch Screen Manual"

From Wiki
Jump to: navigation, search
(→‎SPECIFICATION)
(→‎Resource)
 
(9 intermediate revisions by the same user not shown)
Line 189: Line 189:
 
Note: Absolute maximum ratings means the product can withstand short-term, not more than 120 hours. If the product is a long time to withstand these conditions, the life time would be shorter.
 
Note: Absolute maximum ratings means the product can withstand short-term, not more than 120 hours. If the product is a long time to withstand these conditions, the life time would be shorter.
 
{|class="wikitable"
 
{|class="wikitable"
−
|+|-
+
|+
 
|Parameter of DC characteristics
 
|Parameter of DC characteristics
 
|Symbol
 
|Symbol
Line 239: Line 239:
 
|V
 
|V
 
|}
 
|}
 +
'''3、 CTP CHARACTERISTICS'''
 +
<br>
 +
{|class="wikitable"
 +
|-
 +
|Item of CTP characteristics
 +
|Specification
 +
|Unit
 +
|Remark
 +
|-
 +
|Panel Type
 +
|Glass Cover + Glass Sensor
 +
|`
 +
|`
 +
|-
 +
|Resolution
 +
|1024 × 600
 +
|pixel
 +
|`
 +
|-
 +
|Surface Hardness
 +
|≥6H
 +
|`
 +
|`
 +
|-
 +
|Transparency
 +
|＞82%
 +
|`
 +
|`
 +
|-
 +
|Driver IC
 +
|`
 +
|`
 +
|`
 +
|-
 +
|Interface Type
 +
|USB
 +
|`
 +
|`
 +
|-
 +
|Support Points
 +
|5
 +
|`
 +
|`
 +
|-
 +
|Sampling Rate
 +
|20~100
 +
|Hz
 +
|`
 +
|-
 +
|Supply voltage
 +
|3.3
 +
|V
 +
|`
 +
|}
 +
'''4、 INTERFACE DESCRIPTION'''
 +
<br>
 +
{|class="wikitable"
 +
|-
 +
|Symbol
 +
|DESCRIPTION
 +
|-
 +
|VUSB
 +
|USB Power
 +
|-
 +
|D-
 +
|USB Data
 +
|-
 +
|D+
 +
|USB Data+
 +
|-
 +
|NC
 +
|No connection
 +
|-
 +
|GND
 +
|Power Ground
 +
|}
 +
'''HDMI Interface Description'''
 +
<br>
 +
{|class="wikitable"
 +
|-
 +
|NO.
 +
|Symbol
 +
|DESCRIPTION
 +
|-
 +
|1
 +
|DESCRIPTION
 +
|Positive side of channel 2 TMDS low-voltage signal differential input pair
 +
|-
 +
|2
 +
|TMDS Data2 Shield
 +
|Ground
 +
|-
 +
|3
 +
|TMDS Data2-
 +
|Negative side of channel 2 TMDS low-voltage signal differential input pair
 +
|-
 +
|4
 +
|TMDS Data1+
 +
|Positive side of channel 1 TMDS low-voltage signal differential input pair
 +
|-
 +
|5
 +
|TMDS Data1 Shield
 +
|Ground
 +
|-
 +
|6
 +
|TMDS Data1-
 +
|Negative side of channel 1 TMDS low-voltage signal differential input pair
 +
|-
 +
|7
 +
|TMDS Data0+
 +
|Positive side of channel 0 TMDS low-voltage signal differential input pair
 +
|-
 +
|8
 +
|TMDS Data0 Shield
 +
|Ground
 +
|-
 +
|9
 +
|TMDS Data0-
 +
|Negative side of channel 0 TMDS low-voltage signal differential input pair
 +
|-
 +
|10
 +
|TMDS Clock+
 +
|Positive side of reference clock. TMDS low-voltage signal differential input pair
 +
|-
 +
|11
 +
|TMDS Clock Shield
 +
|Ground
 +
|-
 +
|12
 +
|TMDS Clock
 +
|Negative side of reference clock. TMDS low-voltage signal differential input pair
 +
|-
 +
|13
 +
|CEC
 +
|No Connection
 +
|-
 +
|14
 +
|Reserved(N.C.)
 +
|No Connection
 +
|-
 +
|15
 +
|SCL
 +
|DDC SCL
 +
|-
 +
|16
 +
|SDA
 +
|DDC SDA
 +
|-
 +
|17
 +
|DDC/CEC Ground
 +
|Ground
 +
|-
 +
|18
 +
|＋5V Power
 +
|＋5V Power
 +
|-
 +
|19
 +
|Hot Plug Detect
 +
|Hot Plug Detect
 +
|}
 +
'''B、 USB Interface Description Application Note: Please connect the USB first, and then connect the HDMI interface.'''
 +
=='''Resource'''==
 +
[http://wiki.sunfounder.cc/images/1/16/7_Inch_Screen_Manual.pdf Editing_7_Inch_Screen_Manual.pdf][[File:PDF.jpg]]<br>

Latest revision as of 10:29, 22 October 2019

7 Inch DIY Touch Screen

7 Inch Screen Manual 1.jpg

Supporting the Seven-inch Screen

Use a nut (M3) and a copper post (M3 * 8 + 6) to support the seven-inch touch screen.
7 Inch Screen Manual 2.jpg
Rendering
7 Inch Screen Manual 3.jpg 

This 7-inch touch screen is compatible with any version of the Raspberry Pi.

With a Raspberry Pi 4

Connect the Raspberry Pi 4 to HDMI with a micro HDMI cable.
7 Inch Screen Manual 4.jpg
Wire the USB cable up to Raspberry Pi 4.
7 Inch Screen Manual 5.jpg
Give it a power supply, Plug and play.
7 Inch Screen Manual 6.jpg

Adjust the Resolution of Raspberry Pi 4


Step 1: Unfold the menu bar of Raspberry Pi.
7 Inch Screen Manual 7.jpg
Step 2: Select screen configuration.
7 Inch Screen Manual 8.jpg
Step 3: Select screen configuration.
7 Inch Screen Manual 9.jpg
Step 4: Select Screens.
7 Inch Screen Manual 10.jpg
Step 5: Choose the resolution you want.
7 Inch Screen Manual 11.jpg

With a Raspberry Pi 3

Plug a dual-head HDMI cable in Raspberry Pi 3.
7 Inch Screen Manual 12.jpg
Connect the Raspberry Pi 3 with a USB cable.
7 Inch Screen Manual 13.jpg
Attach a power supply to it, turn it on.
7 Inch Screen Manual 14.jpg

Adjust the Resolution of Raspberry Pi 3

Step 1: Open config.txt
There are two methods to do so.
Method A: First prepare a computer on Windows, Mac or Linux, and a TF card on which the Raspbian system has been burnt. Plug the TF card into the computer with a card reader. Now, open /boot and find the config.txt file. If your computer runs on Windows, DO NOT open the file by Word (also better not notepad) in case of format issues. You are advised to use other edit tools like Notepad++ .
Method B: Log in to Raspberry Pi remotely. Run the command to edit config.txt. 

sudo nano /boot/config.txt


Step 2: Modify the /boot/config.txt file
In either way, now the file config.txt is opened.
1) Define a custom CVT mode (since Raspberry Pi uses the standard rate when 1024x600 is not included, you need to set the aspect ratio as 16:9, i.e. 1024x576) add the following lines below #hdmi_force_hotplug=1. 

hdmi_cvt=1024 576 60 3 0 0 0

hdmi_cvt=<width> <height> <framerate> <aspect> <margins>
<interlace>

Value Default Description
width (required) width in pixels
height (required) height in pixels
height in pixels (required) framerate in Hz
aspect 3 aspect ratio 1=4:3, 2=14:9, 3=16:9, 4=5:4,5=16:10, 6=15:9
margins 0 0=margins disabled, 1=margins enabled
interlace 0 0=progressive, 1=interlaced
rb 0 0=normal, 1=reduced blanking

2) Find the following lines (If there is a "#" mark at the beginning of any of the three lines, which means they are comments, delete the mark. The asterisk "*" represents the value. 

hdmi_group=*
hdmi_mode=*
hdmi_drive=*

3) Modify the value, like this: 

hdmi_group=2
hdmi_mode=87
....
hdmi_drive=2

hdmi_group=2 means DMT (Display Monitor Timings; the standard typically used by monitors)
hdmi_mode=87 indicates the resolution bit.
hdmi_drive=2 selects the Normal HDMI mode.
For more details about configuring config.txt, refer to Raspberry Pi official
website: https://www.raspberrypi.org/documentation/configuration/config-txt.md.
After the modification is done, save and exit.
Step 3: Connect Raspberry Pi
If you change the commands on your PC, after mounting the TF card safely, plug it into the Raspberry Pi. Then connect the power of the Raspberry Pi and the display.
If you log in the Raspberry Pi remotely with ssh, type in the command sudo reboot.

SPECIFICATION


1、 GENERAL INFORMATION
7 Inch Screen Manual 15.png
2、 ABSOLUTE MAXIMUM RATINGS

Parameter of absolute maximum ratings Symbol Min Max Unit
Operating temperature Top －10 60 60
Storage temperature Tst －20 70 ℃
Humidity RH ` 90%(Max 60℃) RH

Note: Absolute maximum ratings means the product can withstand short-term, not more than 120 hours. If the product is a long time to withstand these conditions, the life time would be shorter.

Parameter of DC characteristics Symbol Min. Min. Max. Unit
PCB operating voltage VUSB ` 5.0 ` V
LCD I/O operating voltage VDD 3.0 3.3 3.6 V
Input voltage ‘H’ level VIH 0.7*VDD ` VDD V
Input voltage ‘L’ level VIL VSS ` 0.3*VDD V
Output voltage ‘H’ level VOH VDD-0.4 ` VDD V
Output voltage ‘L’ level VOL VSS ` VSS+0.4 V

3、 CTP CHARACTERISTICS

Item of CTP characteristics Specification Unit Remark
Panel Type Glass Cover + Glass Sensor ` `
Resolution 1024 × 600 pixel `
Surface Hardness ≥6H ` `
Transparency ＞82% ` `
Driver IC ` ` `
Interface Type USB ` `
Support Points 5 ` `
Sampling Rate 20~100 Hz `
Supply voltage 3.3 V `

4、 INTERFACE DESCRIPTION

Symbol DESCRIPTION
VUSB USB Power
D- USB Data
D+ USB Data+
NC No connection
GND Power Ground

HDMI Interface Description

NO. Symbol DESCRIPTION
1 DESCRIPTION Positive side of channel 2 TMDS low-voltage signal differential input pair
2 TMDS Data2 Shield Ground
3 TMDS Data2- Negative side of channel 2 TMDS low-voltage signal differential input pair
4 TMDS Data1+ Positive side of channel 1 TMDS low-voltage signal differential input pair
5 TMDS Data1 Shield Ground
6 TMDS Data1- Negative side of channel 1 TMDS low-voltage signal differential input pair
7 TMDS Data0+ Positive side of channel 0 TMDS low-voltage signal differential input pair
8 TMDS Data0 Shield Ground
9 TMDS Data0- Negative side of channel 0 TMDS low-voltage signal differential input pair
10 TMDS Clock+ Positive side of reference clock. TMDS low-voltage signal differential input pair
11 TMDS Clock Shield Ground
12 TMDS Clock Negative side of reference clock. TMDS low-voltage signal differential input pair
13 CEC No Connection
14 Reserved(N.C.) No Connection
15 SCL DDC SCL
16 SDA DDC SDA
17 DDC/CEC Ground Ground
18 ＋5V Power ＋5V Power
19 Hot Plug Detect Hot Plug Detect

B、 USB Interface Description Application Note: Please connect the USB first, and then connect the HDMI interface.

Resource

Editing_7_Inch_Screen_Manual.pdfPDF.jpg

Retrieved from "http://wiki.sunfounder.cc/index.php?title=7_Inch_Screen_Manual&oldid=5973"