Instalarea LCD Raspberry pi & 7 inch Capacitive Touch Screen LCD

  • Nu este necesar sa facem instalarea, instalarea este numai pentru touch screen
  • Pentru a merge lcd este suficient sa modificam numai rezolutie din /boot/config.txt
  • Deschidem un terminal si urmam instructiunile de mai jos

mkdir lcd_hdmi
git clone http://github.com/goodtft/LCD-show.git
ls
chmod -R 775 LCD-show
cd LCD-show
sudo ./LCD-hdmi

– trebuie sa intram in SD card ( se intra cu el in alt PC, eu am folosit un ubuntu ) in file boot si acolo gasim acest fisier ” config.txt ”
– il deschidem cu un editor de txt ( notepade++ )
– cautam unde incepe txt asa ” #hdmi_group=1 ” adaugam textul de mai jos

max_usb_current=1
hdmi_group=2
hdmi_mode=87
hdmi_cvt 800 480 60 6 0 0 0
hdmi_drive=1

salvam

aici : http://www.waveshare.com/wiki/7inch_HDMI_LCD_(B)

Modificare rezolutie

  • Daca dormi sa modificam rezolutie se intra in terminal si scrie aceasta comanda ” sudo nano /boot/config.txt „
  • Cautam partea cu rezolutia care incepe asa : hdmi_cvt 800 480 60 6 0 0 0 ( vom seta ce rezolutie dorim )
  • Pentru a ajunge la textul original intram in terminal si scriem comanda ” sudo nano /boot/config.txt „

Textul original arata asa :

# For more options and information see
# http://rpf.io/configtxtreadme
# Some settings may impact device functionality. See link above for details

# uncomment if you get no picture on HDMI for a default „safe” mode
#hdmi_safe=1

# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
disable_overscan=1

# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16

# uncomment to force a console size. By default it will be display’s size minus
# overscan.
framebuffer_width=1280
framebuffer_height=720

# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1

# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1

# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2

# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4

# uncomment for composite PAL
#sdtv_mode=2

#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800

# Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=on
#dtparam=i2s=on
dtparam=spi=on

# Uncomment this to enable the lirc-rpi module
#dtoverlay=lirc-rpi

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
dtparam=audio=on
enable_uart=1
#dtoverlay=w1-gpio
max_usb_current=1
hdmi_drive=1
#hdmi_group=2
#hdmi_mode=1
#hdmi_mode=87
hdmi_cvt 1280 800 60 6 0 0 0
dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900
dtoverlay=w1-gpio
gpu_mem=64

Daca dormi rotirea ecranului

  • Scriem comanda ” sudo nano /boot/config.txt „
  • lcd_rotate=2