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[[File:IMG_1795.jpg|thumbnail|right|3.5 inch TFT 800x480@60fps sku:441223]]
{{GD Template Impl}}
[[File:IMG_1796.jpg|thumbnail|right|3.5 inch TFT 800x480@60fps sku:441223]]
== Overview ==
3.5 inch HD-TFT Display shield for Raspberry pi 3B/2B/B+ With Keyboards and Remote IR
'''[update]''':This LCD supports '''raspberry pi 4 computer model b''', you only need to modified the config.txt to use this lcd. please refer to [[3.5 inch TFT 800x480@60fps#How to use this screen on Pi 4B]]
===Video===
{{#ev:youtube|https://www.youtube.com/watch?v=QawQ8Uht8YU}}
<gallery>
3.5hd-tft01-w800.jpg
3.5hd-tft02-w800.jpg
3.5hd-tft03-w800.jpg
3.5hd-tft04-w800.jpg
3.5hd-tft05-w800.jpg
3.5hd-tft06-w800.jpg
3.5hd-tft07-w800.jpg
3.5hd-tft08-w800.jpg
3.5hd-tft09-w800.jpg
3.5hd-tft10-w800.jpg
3.5hd-tft11-w800.jpg
3.5hd-tft12-w800.jpg
</gallery>
== Features ==
* Demensions: 85mm×56.5mm;
* Resolution: 800 x 480, 3.5 inch;
* 267ppi High PPI display screen;
* 11ms High Response Time(more than 60 fps);
* 160° Wide Viewing Angle;
* 900:1 High Contrast Ratio;
* Sunlight Readable;
* Backlight can change;
* With 2 keyboards;
* With IR function;
* With I2C Master;
* Without touch
* DC 5V, 80~120mA
== How to use this screen on Pi 4B ==
[[File:Config-difference.jpg|config.txt difference | 800px ]]
<span style="color:red;">[Update]</span>:You can use this script tool to use this LCD now: https://github.com/geekworm-com/22LCD-script
or download this [[File:Config.zip |config.txt on on 2019-06-20 raspbian-buster]], then unzip it, and move it to /boot/
== How to use this screen for PI 3B+/3B/2B ==
We update the user method for the old raspberry pi board such as 3B+/3B/2B etc. Only append the following comment to the end of '''config.txt''' file;
We test it on the official Rasdpbian 2018-11-13-raspbian-stretch verson.
<PRE>
#for raspberry pi 3b+/3b/2b+/b+
dtoverlay=dpi18
overscan_left=0
overscan_right=0
overscan_top=0
overscan_bottom=0
framebuffer_width=800
framebuffer_height=480
enable_dpi_lcd=1
display_default_lcd=1
dpi_group=2
dpi_mode=87
dpi_output_format=0x6f005
hdmi_timings=480 0 16 16 24 800 0 4 2 2 0 0 0 60 0 32000000 6
display_rotate=3
</PRE>
=== How to change the backlight, push the button ===
[[File:35inch-HD-TFT1.png]]
=== How to use 2 keys,like gpio ===
[[File:35inch-HD-TFT2.png]]
=== How to use the I2C master(I2C_3) ===
you can use this module by the following step
step 1.
Download the official firmware, then upgrade to the latest kernel
sudo rpi-update
step 2.
Config file to enable i2c_3
sudo nano /boot/config.txt
Add the following line:
dtoverlay=i2c-gpio,i2c_gpio_scl=24,i2c_gpio_sda=23framebuffer_height=480
step 3.
Make and install the pigpio
sudo git clone git://github.com/joan2937/pigpio
cd pigpio
sudo python setup.py install
sudo make
sudo make install
step 4.
install the I2C tools
sudo apt-get install i2c-tools python-smbus
step 5.
Config file to /etc/modules
sudo nano /etc/modules
Add the following line:
i2c-bcm2708
i2c-dev
step 6.
Config file to /etc/ rc.loacl
sudo nano /etc/ rc.loacl
Add the following line:
raspi-gpio set 23 pu
raspi-gpio set 24 pu
step 7.
Save then restart;
=== How to use the IR function ===
Description:
'''IR receiver function:'''
* Operating frequency: 38K HZ
* Receiving distance: 18-20m
* Reception angle: +/- 45 degrees
'''The infrared transmitter function'''
* Wavelength: 940nm
* Transmitting distance: 7-8m
Preparation: Burn into raspbian system;
1. Start the Raspberry Pi, login Raspberry Pi through SSH, the user name: pi, default password: raspberry
2. Update and install lirc software, run the following command:
sudo apt-get update
sudo apt-get install lirc
[[File:35inch-hd-tft3.jpg|600px]]
[[File:35inch-hd-tft4.jpg|600px]]
3. Edit the config.txt, and add configuration. use GPIO PIN 26;
sudo nano /boot/config.txt
Add the following line into the config.txt file:
dtoverlay=lirc-rpi, gpio_in_pin=26
[[File:35inch-hd-tft5.png|600px]]
4. Edit LRIC config file to enable infrared function;
sudo nano /etc/lirc/hardware.conf
Modify the following lines:
LIRCD_ARGS=”--uinput”
DRIVER=”default”
DEVICE=”/dev/lirc0″
MODULES=”lirc_rpi”
5. Run "sudo reboot" to restart the Raspberry Pi, then run "ls / dev / l *" to view the infrared device is enabled
[[File:35inch-hd-tft7.jpg|600px]]
It's enabled if you can view the above red mark;
6. Record Button
sudo /etc/init.d/lirc stop
sudo irrecord -n -d /dev/lirc0 ~/lircd.conf
Record your IR remote control Follow the prompts, such as “pause”，“nextsong”，“prevsong”，“stop”，“volumeup”，“volumedown” etc.
[[File:35inch-hd-tft8.jpg|600px]]
then you can get a lircd.conf file; override the old lircd.conf file;
sudo cp ~/lircd.conf /etc/lirc/lircd.conf
7. Startup lirc software;
sudo /etc/init.d/lirc start
[[File:35inch-hd-tft9.jpg|600px]]
8. Run the following command to view & check record result
sudo irw
Then press those record button;
9. You can view those button name to run irsend command;
irsend LIST /home/pi/lircd.conf “”
maybe it's following content:
irsend: 000000000000c837 pause
irsend: 00000000000048b7 nextsong
10. Now you can use the infrared transmitter, recorded before launching the remote control key coding, use that will extend the board as a rotary tool.Launch the command reference command:
irsend SEND_ONCE /home/pi/lircd.confpause
irsend SEND_ONCE /home/pi/lircd.confnextsong
irsend SEND_ONCE /home/pi/lircd.conf KEY_VOLUMEDOWN
irsend SEND_ONCE /home/pi/lircd.conf KEY_VOLUMEUP
== Appendix==
# LIRC http://www.lirc.org/
# APP http://www.datscharf.dk/amote/
== Packing List ==
1 x HD 3.5 inch TFT screen
== GPIO Pin==
[[File:GPIO-PIN.jpg|GPIO PIN]]
== Download ==
[[File:P9680069100 en2.jpg|500px]]
== Matching CNC Case ==
1. Support camera module(official original camera), with a camera acrylic box.<br />
2. Reserve interface of battery compartment(soon coming).<br />
3. Excellent heat sink to ensure heat dissipation.<br />
[[File:How to Assemble.pdf]]
[[File:IMG 2031.jpg|500px]]
[[File:IMG_1995.jpg|500px]]
== Matching Acrylic Case ==
Install guide:
[[File:IMG_2069-w800.jpg|600px]]
[[File:IMG_2067-w800.jpg|600px]]
[[File:IMG_2066-w800.jpg|600px]]
[[File:IMG_2060-w800.jpg|600px]]
[[#top|BACK TO TOP]]
[[Category:Product Manual]]
[[Category:Raspberry pi]]
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