Data Sheet

UCTRONICS 3.5 Inches HDMI TFT LCD Touch Screen Display
Model：B0106
1. Introduction
UCTRONICS 3.5" HDMI TFT LCD display module is designed for Raspberry Pi 2 /Pi 3 Model B / B+ and can also be used on
other hardware platforms which have HDMI display interface. The 3.5" screen is the same size as the standard Raspberry Pi
model B/B+, and well mates with these Raspberry Pi boards. With its touch screen and split audio from the HDMI input, it is
ideal for portable devices and multimedia projects, and it is a replacement for a heavy and bulky HDMI monitor, keyboard
and mice. The highlight of this display module, it supports high frame rate videos playback compared to its SPI LCD
counterpart. LCD screen backlight can be turned off by the tiny onboard button if needed.
2. Specification
LCD Resolution: 480 x 320 pixels
Support plug and play
Interface: HDMI & SPI
Support touch screen
HDMI Input Resolution support:
480x320 ~ 1920x1280
Support game and video
Support audio split from HDMI
Automatic driver installation script
Dimension: 55.98 x 85.60 mm
Well mate with Pi B+, Pi2 and Pi3
3. Hardware installation
Figure 1 Figure 2
The Figure 1 shows the display module pin out and dimension.
Connect the 3.5 inch HDMI LCD to the Raspberry Pi board like the Figure 2 shows,
Step1 Align the pin 1 of the edge connector between the LCD display and Raspberry pi board,
Step2 Connect the HDMI interface with the HDMI adapter board.
Step3 Power on the Raspberry Pi board and make sure the internet is connected properly.
4. Download and install driver
The driver includes the settings of the Raspbain OS resolution and touch screen support. The LCD driver has been already
installed in the Micro SD card shipped with the bundle kit that includes a Micro SD card. Otherwise users have to install the
driver manually with the following steps for a clean system.
Step1 Expand the Micro SD card
sudo raspi-config then choose Advanced Operations -> Expand Filesystem and hit Yes. Then go to Finish and you
need to run sudo reboot to reboot your Raspberry Pi.
Step2 Update your Raspberry Pi system
sudo apt-get update
Step3 Download the driver package
sudo git clone https://github.com/UCTRONICS/UCTRONICS_LCD35_HDMI_RPI.git
Step4 Come in the UCTRONICS_LCD35_HDMI_RPI
cd UCTRONICS_LCD35_HDMI_RPI
Step5 Get run permissions
sudo chmod +x UCTRONICS_hdmi_backup
sudo chmod +x UCTRONICS_hdmi_install
sudo chmod +x UCTRONICS_hdmi_restore
Step6 Backup data
sudo ./UCTRONICS_hdmi_backup
Step7 install the UCTRONICS LCD35 HDMI driver
sudo ./UCTRONICS_hdmi_install
Wait for 2~3 minutes, the system will be installed and restarted automatically.
If you want to reuse the pre-installation system, you can use the below command
sudo ./UCTRONICS_hdmi_restore
If you don’t want to run those commands to install the LCD driver, we also provide ready to use system image file
“UCTRONICS_LCD35_HDMI.img". Please click the following link to download the system image file:
http://uctronics.oss-us-west-1.aliyuncs.com/LCD35/image/UCTRONICS_LCD35_HDMI.img
Check the following link to install the win32diskimager tool in your computer. Then write the image file into the Micro SD
card.
https://sourceforge.net/projects/win32diskimager/
5. Add more functions to the LCD
5.1. Install calibration software for calibration
cd UCTRONICS_LCD35_HDMI_RPI