(SKU: U4703)UCTRONICS LCD35 RPI (SPI interface)
UCTRONICS 3.5 inch TFT LCD display module is designed for Raspberry Pi zero/Pi 2 /Pi 3 Model B / B+ /Pi 3 B+, and can also be used on other hardware platforms with an SPI interface. The 3.5' inch screen is in the same size as the standard Raspberry Pi model B/B+, and well mates with the Raspberry Pi boards. With its touchscreen, it is suitable for portable devices and projects. It is also a replacement for a heavy and bulky HDMI monitor, keyboard and mouse.
The highlight of this display module: it supports plug-and-play without rebooting the Pi, and SPI speed runs as fast as 32MHz.
Contents
- 1 UCTRONICS 3.5 Inches 480 x 320 TFT LCD Touch Screen Display
- 2 Add more functions to the LCD
- 3 Trouble Shooting
- 3.1 How to add new ICON to desktop ?
- 3.2 How to rotate the screen to 180 degree ?
- 3.3 Some zones working much better than others, the near edge zones seem the worst.
- 3.4 How to burn the UCTRONICS_LCD35_RPI.img?
- 3.5 Why the HDMI display stop at rainbow ?
- 3.6 Why the screen is always white and doesn't display anything?
UCTRONICS 3.5 Inches 480 x 320 TFT LCD Touch Screen Display
Model: U4703
Variations: U470301,U470302,U470303
Specification
Support Kernel from 4.1 to 4.14 | Support plug and play |
Resolution: 480 x 320 pixels | Support touch screen |
Interface: SPI | Support game and video |
SPI speed: 32MHz | Automatic driver installation script |
Dimension: 55.98 x 85.60 mm | Well mate with Pi Zero, Pi B+, Pi2, Pi3 and Pi3 B+ |
Hardware installation
Figure1 |
Website: http://www.uctronics.com |
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Email: [email protected] |
Tel: +86 025 84271192 |
Trouble Shooting
How to add new ICON to desktop ?
If it's just a folder, add it directly to the desktop
If it is an executable, follow this steps:
- Step1: choose the Directory Tree -> / -> usr -> share ->applications folder
- Step2: choose a icon you want to link
- Step3: choose edit -> create link... ->Desktop ->OK
How to rotate the screen to 180 degree ?
cd UCTRONICS_LCD35_RPI
sudo chmod 777 UCTRONICS_LCD35_rotation_180_install
sudo ./UCTRONICS_LCD35_rotation_180_install
0 degree 180 degree
Some zones working much better than others, the near edge zones seem the worst.
- You should recalibrate the touchscreen.
- Downloading our UCTRONICS_LCD35_HDMI_RPI package from
https://github.com/UCTRONICS/UCTRONICS_LCD35_RPI.git
- Install calibration software for calibration
cd UCTRONICS_LCD35_RPI
sudo unzip Xinput-calibrator_0.7.5-1_armhf.zip
cd xinput-calibrator_0.7.5-1_armhf/
sudo dpkg -i -B xinput-calibrator_0.7.5-1_armhf.deb
How to burn the UCTRONICS_LCD35_RPI.img?
Step1: Download the burn tools from https://github.com/UCTRONICS/Win32DiskImager.git
Step2: Download the UCTRONICS_LCD35_RPI.img file from
http://uctronics.oss-us-west-1.aliyuncs.com/LCD35/image/UCTRONICS_LCD35_RPI.img
Step3: Open the SDFormatter to format your SD card
Step4: Open the Win32DiskImager to write the UCTRONICS_LCD35_RPI.img to your SD card.
For more details please refer to our video demo from
https://www.youtube.com/watch?v=cCw91wH6mnc
Why the HDMI display stop at rainbow ?
After loading our LCD35 SPI driver, the system just supports our LCD35 screen which means you can't use the HDMI screen.
Why the screen is always white and doesn't display anything?
Please ensure the hardware connection is normal. If the hardware connection is incorrect, the LCD will not work fine. Please ensure you have installed the LCD35 driver following the
https://github.com/UCTRONICS/UCTRONICS_LCD35_RPI/blob/master/README.md
if you don't install it, the LCD will not work fine.