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Return items will be accepted within 40 days when is the date of receiving the goods. Customized items cannot be returned or exchanged. Items bought with an e-gift card are exchangeable only; refunds are not applicable.
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We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side.Final sales items or free gifts are not acceptable for a return.To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier. We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom
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2.Refund Policy
You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment.Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +8619359849471
Note: Raspberrry Pi is not included. Introduction:
This is the dual use ABS case for 3.5 inch screen kit, suitable for Raspberry Pi 4 Model B.It is esay to install the case with screen and Raspberry Pi.When you use the Raspberry Pi with 3.5inch screen,please remove the cover of case;When you use Raspberry Pi with cooling fan,you needn"t remover the cover of case.
Note:The 3.5inch screen and cooling fan can"t be used at the same time. If Raspberry Pi is equipped with GPIO display drivers,the HDMI port will have no signal output
Specifications:
Colour: Black
Material: ABS plastic
Size: 90*61*35
Applicable to: Raspberry Pi 4B
3.5-inch touch screen or fan that can install Raspberry Pi
Knowing that: 3.5-inch display and fan cannot be installed at the same time due to the PIN pin
3.5inch Touch Screen Features:
1. Physical resolution 320 x 480, with resistive touch control
2. With the refresh rate of raspberry pi around 50Hz, play video to play the game without pressure.
3. With the refresh rate of raspberry pie around 50Hz, play video to play the game without pressure
4. Support FBCP software drive, support double screen display, can adjust the resolution of the software to zoom
5. Raspberry Pi ZeroW, A, A+, B, B+, 2B, 3B, 3B+ , 4B)
6. Support Raspbian/Ubuntu/Kali system, provide driver and image
7. WIKI for reference: raspberrypiwiki.com/index.php/3.5_inch_LCD_B
Note:
Please plug the screen on Raspberry Pi"s GPIO pins correctly( as the picture) , otherwise the touch function will be damaged.
If Raspberry Pi is equipped with GPIO display drivers such as MPI2411, MPI2418, MPI2801, MPI3201, MPI3501, etc., the HDMI port will have no signal output
If you need to switch back to the HDMI display mode, execute:
This LCD can be calibrated using a program called xinput_calibrator
Install it with the commands:
cd LCD-show/sudo dpkg -i -B xinput-calibrator_0.7.5-1_armhf.deb
Click the Men 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
About Dual Use ABS Case:
1. The Case made of ABS material,support to install 3.5 inch touch screen,and need to remove the cover of case. When you don"t use the 3.5 inch touchscreen , it is a general case with cooling fan.The 3.5inch screen and cooling fan can"t be used at the same time.
2. The case is design for Raspberry Pi 4 Model B , remain almost all interface such as USB , Ethernet , A/V , micro HDMI , SD card slot , display , camera( CSI). (Note: A1 case remain GPIO and POE hole , but A2 case does not remian)
3. Make 2 hole on the bottom so that you can hange the case on the wall or something else . This design is very convenient when using the 3.5 inch touchscreen.
Package Included: 1 x ABS box case 1 x touch screen 1 x touch screen pen
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
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A part of the QA has been auto-translated.
0
Q:
Does this just work after assembling or do you have to use your own chip or soemthing?
Does this just work after assembling or do you have to use your own chip or soemthing?
The last command to type in is ' sudo .LCD35-show ' (with a slash between the dot and the LCD, but BG doesn't let me write it) instead of the one provided
The last command to type in is ' sudo .LCD35-show ' (with a slash between the dot and the LCD, but BG doesn't let me write it) instead of the one provided
Answered by Gwenaël on 17/06/2020Helpful (0)
0
Q:
How to install driver on Raspberry Pi 4b for this display?
How to install driver on Raspberry Pi 4b for this display?
This does not work if you follow the product description... There is a comment where somebody said a waveshare link, the display started to work me, but the quality is wrong, there is less color, you cannot see whats on the screen, and I cannot calibrate the touchscreen to work. (I have an other LCD similar to this, but that was working better.
Its far from 50fps with the waveshare driver. Do anybody knows a better driver? Or it is bad quality?
This does not work if you follow the product description... There is a comment where somebody said a waveshare link, the display started to work me, but the quality is wrong, there is less color, you cannot see whats on the screen, and I cannot calibrate the touchscreen to work. (I have an other LCD similar to this, but that was working better.
Its far from 50fps with the waveshare driver. Do anybody knows a better driver? Or it is bad quality?
Answered by hygyke on 16/09/2020Helpful (0)
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