2.2 LCD

Raspberry Pi 2.2 inch TFT Display sku:398437

Introduction

High PPI 2.2 inch TFT Display Shield for Raspberry Pi 3B/2B/B+/A+ With 6 Keyboards and Remote IR; It's fit to raspberry pi 3 model B 2B/B+/A+; with 6 customized button, with IR function. you can customize your button function for your application.

Features

Demensions: 65mm x 56.5mm, it's a standard raspberry pi HAT expansion size;
Resolution: 320 x 240, 2.2 inch, High PPI display screen;
With 6 keyboards;
With IR function;
Support official Raspberry pi case

How to use this LCD

Use the shell script (Recommend)

Please refer to Ugeek LCD user manual (NEW!)

sudo rpi-update
git clone https://github.com/geekworm-com/22LCD-script.git
cd 22LCD-script
chmod +x screen_setup.sh
sudo ./screen_setup.sh

or

sudo rpi-update
wget https://raw.githubusercontent.com/geekworm-com/22LCD-script/master/screen_setup.sh
chmod +x screen_setup.sh
sudo ./screen_setup.sh

Use the full IMAGE with driver

Down the image file from http://raspberrypiwiki.com/download/RPI-22-INCH-TFT/ , write the Image to micro SD card, after installing the system image to your SD card . wait for a minutes, the LCD can display.

How to use it on Raspbian OS

Upgrade to the latest Kernel

sudo rpi-update

Install the GPIO library and the driver

sudo apt-get install gcc python-pygame python-dev
sudo wget https://pypi.python.org/packages/source/R/RPi.GPIO/RPi.GPIO-0.5.11.tar.gz
sudo tar zxvf RPi.GPIO-0.5.11.tar.gz
cd RPi.GPIO-0.5.11
sudo python setup.py install

Deploy config.txt file to enable I2C and SPI interface

sudo nano /boot/config.txt
#Apend the follwoing line:
dtparam=i2c_arm=on,spi=on

Deploy modules, and start up the screen

sudo nano /etc/modules
fbtft_device name=pitft rotate=270 speed=48000000 fps=30

Attention: Please ignore the step 3 and 4 if you use the latest official jessie system, only deploy the config.txt file

sudo nano /boot/config.txt
dtparam=i2c_arm=on,spi=on
dtoverlay=pitft28-resistive, rotate=270 speed=48000000 fps=30

Deploy cmdline.txt file to show the console

sudo nano /boot/cmdline.txt
#add this line before "rootwait"
fbcon=map:10 fbcon=font:VGA8x8

then save & reboot;

How to turn on/off backlight

gpio -g mode 27 in
gpio -g mode 27 out

How to enter Graph model

Log in, then execute

sudo mv /usr/share/X11/xorg.conf.d/99–fbturbo.conf ~
sudo nano ~/.profile
#append the following line;
export FRAMEBUFFER=/dev/fb1
#then save & close ~/.profile file;

Edit config file, and add screen device;

sudo nano /usr/share/X11/xorg.conf.d/99-pitft.conf

append the following line;

Section “Device”
Identifier "PiTFT"
Driver "fbdev"
Option "fbdev" "/dev/fb1"
EndSection

save & close this file;

Config auto login in graph model via raspi-config

sudo raspi-config

select "Enable Boot to Desktop/Scratch", then select "Desktop log in as user ‘pi’ at the graphical desktop", then save & reboot;

then you can enter directly graph model;

for "2017-03-02-raspbian-jessie" version, please install a component using the command below; ==Added on 2017.03.09==

sudo apt-get install xserver-xorg-video-fbdev

How to DIY the six button

Log in Raspberry by ssh and install related python and software

$sudo apt-get update
$sudo apt-get install libudev-dev
$sudo apt-get install python-pip
$sudo pip install rpi.gpio
$sudo pip install python-uinput

Register the uinput module (You can add it to/etc/modules file, it’ll be registered automatically after powering)

$sudo modprobe uinput

Download this sample (File:Python-keys.zip) and unzip it, and copy into raspberry. (NOTE: it's only a demo code, you can study it then develop your application.)
Run the procedure of imitated keyboard or rocker, press the button and check it;

$sudo python rpi-2.2TFT-kbrd.py
or
$sudo python rpi-2.2TFT-jstk.py
or
$sudo python rpi-2.2TFT-mouse.py

Attention: uinput means uinput.KEY_XX (XX means Button. Take A for example, that is uinput.KEY_A)

Document & Download

http://raspberrypiwiki.com/download/RPI-22-INCH-TFT/
github
DIY button sample code: File:Python-keys.zip;
python-uinput Lib
RPi.GPIO Lib

FAQs

Q: Is it support Dual screen display?

A: Yes,Support dual screen disply.

Cases

Raspberry Pi Official Case can refer to Raspberry Pi Official Case SKU:397320

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Anonymous user #6

42 months ago

Score 0

is there a way to turn off the display or make it display different images than the HDMI outputs?

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Anonymous user #5

46 months ago

Score 0

Thank you for this great guide. I managed to make the display work, but I'm still trying to get the buttons to work. After all the installation procedures, when I try to run any of the Python scripts like (rpi-2.2TFT-kbrd.py, for example), I get an error:

Traceback (most recent call last): File "/home/pi/Downloads/Python-keys/rpi-2.2TFT-jstk.py", line 26, in <module> import RPi.GPIO as GPIO RuntimeError: This module can only be run on a Raspberry Pi!

What is going on?

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Anonymous user #4

56 months ago

Score 0

Hi, great wiki. But how to remove all like as we never installed it ?

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Harry

56 months ago

Score 0

Hi, Please refer to Ugeek LCD user manual, then select 'Reset RPi config to default' item.

Harry / Geekworm

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Anonymous user #3

65 months ago

Score 0

Trying this with a Rpi4 but its not working, has there been some changes to the OS that require a different setup? Also any news on this case being modded for the Rpi4?

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