3.5inch RPi Display

Product Features

• 320×480 resolution
• Resistive touch control
• Supports any revision of Raspberry Pi (directly-pluggable)
• Compatible with Raspberry Pi A, B, A+, B+, 2B, 3B, 3B+versions
• Drivers provided (works with your own Raspbian/Ubuntu directly)
• Size perfectly fits the Pi
• High quality immersion gold surface plating
• Supports Raspbian system, ubuntu system ,kali Linux system

Key Parameters

LCD Type	TFT
LCD Interface	SPI
Touch Screen Type	Resistive
Touch Screen Controller	XPT2046
Colors	65536
Backlight	LED
Resolution	320*240 (Pixel)
Aspect Ratio	4:3
SPI Diver Speed	48Mhz
Backlight Current	TBD
Operating Temp. (℃)	TBD

Interface

PIN NO.	SYMBOL	DESCRIPTION
1, 17	3.3V	Power positive (3.3V power input)
2, 4	5V	Power positive (5V power input)
3, 5, 7, 8, 10, 22	NC	NC
6, 9, 14, 20, 25	GND	Ground
11	TP_IRQ	Touch Panel interrupt, low level while the Touch Panel detects touching
12	KEY1	Key
13	RST	Reset
15	LCD_RS	LCD instruction control, Instruction/Data Register selection
16	KEY2	KEY
18	KEY3	KEY
19	LCD_SI / TP_SI	SPI data input of LCD/Touch Panel
21	TP_SO	SPI data output of Touch Panel
23	LCD_SCK / TP_SCK	SPI clock of LCD/Touch Panel
24	LCD_CS	LCD chip selection, low active
26	TP_CS	Touch Panel chip selection, low active

Usage

When users connect the Raspberry Pi to use, they need to configure the official system. Or you can also burn the configured system image directly.
Tips:Basic for Raspbian Jessie with PIXEL (2017-04-10-raspbian-jessie.img)

Step 1：Download the Raspbian IMG

https://www.raspberrypi.org/downloads/raspbian/

Step 2: Burn the system image

If you don't know how to do that,you can refer to the Raspberry Pi office tutorial

Step 3: Open terminal and Download the driver on RPI

Run:

git clone https://github.com/Elecrow-keen/Elecrow-LCD35.git

Step 4: Install driver

Run:

cd Elecrow-LCD35

sudo ./Elecrow-LCD35

Wait A Few Minutes, when the system reboot ok, you can see that.

File:3.5 Inch 480x320 TFT Display1.jpg

Touch screen calibration

• This LCD can be calibrated using a program called xinput_calibrator
• Install it with the commands:

cd Elecrow-LCD35

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 (may differ depending on LCD) to 99-calibration.conf, as shown in the picture:

File:124.jpg

Install Soft Keyboard

• Install the reference link：https://github.com/Elecrow-keen/Elecrow-LCD5/wiki/How-to-Install-Soft-Keyboard

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