llegoff / AIYCube

AIYCube

SD Card preparation

write last rasbian image on SD Card

create a file '/boot/wpa_supplicant.conf' to enable wifi connection with content

country=FR
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
    ssid="ssid"
    psk="password"
}

create empty file '/boot/ssh' to enable ssh session

edit file '/boot/cmdline' to disable console on serial0 remove

console=serial0,115200

Boot on SD Card , connect by SSH or console, and Update rasbian

sudo apt-get update
sudo apt-get upgrade

configure rasbian

sudo raspi-config

change password

• 1 Change User Password

change hostname

• 2 Network Options
• N1 Hostname

change langue

• 4 Localisation Options *I1 Change Locale select your language and UTF8

change time zone

• 4 Localisation Options
• I2 Change Timezone

change Keyboard layout

• 4 Localisation Options
• I3 Change Keyboard Layout select your keyboard layout

change wifi country code

• 4 Localisation Options
• I4 Change Wi-fi Country select your country code

enable camera

• 5 Interfacing Options
• P1 Camera

enable serial0 without console

• 5 Interfacing Options
• P6 Serial
• No
• Yes

expande file system

• 7 Advanced Options
• A1 Expand Filesystem

select finish and reboot

Configure TFT

edit file '/boot/config.txt', add line

#enable TFT ILI9341 320x240
dtparam=spi=on
dtoverlay=pitft22,rotate=90,speed=64000000,fps=25

#640x480 60hz for framebuffer copy /2
hdmi_force_hotplug=1
hdmi_cvt=640 480 60 1 0 0 0
hdmi_group=2
hdmi_mode=87

#320x240 60hz  for frame buffer copy
#hdmi_force_hotplug=1
#hdmi_cvt=320 240 60 1 0 0 0
#hdmi_group=2
#hdmi_mode=87

Use TFT as second screen

Use Frame Buffer copy

install fbcp

sudo apt-get install cmake
git clone https://github.com/tasanakorn/rpi-fbcp
cd rpi-fbcp/
mkdir build
cd build/
cmake ..
make
sudo install fbcp /usr/local/bin/fbcp

cd ..
cd ..
rm -rf rpi-fbcp

load fbcp

fbcp &

to run fbcp at startup, edit file '/etc/rc.local' , add before 'exit 0'

until "/usr/local/bin/fbcp"; do sleep 1; done &

Configure Touchscreen

edit file '/boot/config.txt', add line

#enable TFT Touch
dtoverlay=ads7846,penirq=24,swapxy=1,pmax=255,xohms=60

install 'xinput-calibrator' and 'xserver-xorg-input-evdev'

sudo apt-get install xinput-calibrator
sudo apt-get install xserver-xorg-input-evdev
sudo cp -rf /usr/share/X11/xorg.conf.d/10-evdev.conf /usr/share/X11/xorg.conf.d/45-evdev.conf

launch xinput_calibrator

DISPLAY=:0 xinput_calibrator

after calibration, xinput_calibrator diplay information

    Setting calibration data: 0, 4095, 0, 4095
Calibrating EVDEV driver for "ADS7846 Touchscreen" id=7
        current calibration values (from XInput): min_x=0, max_x=4095 and min_y=0, max_y=4095

Doing dynamic recalibration:
        Setting calibration data: 335, 3927, 203, 3905
        --> Making the calibration permanent <--
  copy the snippet below into '/etc/X11/xorg.conf.d/99-calibration.conf' (/usr/share/X11/xorg.conf.d/ in some distro's)
Section "InputClass"
        Identifier      "calibration"
        MatchProduct    "ADS7846 Touchscreen"
        Option  "Calibration"   "335 3927 203 3905"
        Option  "SwapAxes"      "0"
EndSection

create file '/usr/share/X11/xorg.conf.d/99-calibration.conf' with content display by xinput_calibrator

Section "InputClass"
        Identifier      "calibration"
        MatchProduct    "ADS7846 Touchscreen"
        Option  "Calibration"   "335 3927 203 3905"
        Option  "SwapAxes"      "0"
EndSection

add a virtual keyboard

sudo apt-get install matchbox-keyboard

Configure audio on Raspberry Pi Zéro

edit file '/boot/config.txt', add line

# Enable audio on PI Zero (loads snd_bcm2835)
dtoverlay=pwm-2chan,pin=18,func=2,pin2=19,func2=2
dtparam=audio=on

Configure On/Off button

edit file '/boot/config.txt', add line

#enable on/off button
dtoverlay=gpio-shutdown

Configure arcade button

edit file '/boot/config.txt', add line

#map keyboard key on button on GPIO
#find keycode in https://github.com/torvalds/linux/blob/v4.12/include/uapi/linux/input-event-codes.h
dtoverlay=gpio-key,gpio=16,keycode=16,label="KEY_Q"

Configure thermal printer ZJ-58

install cups

sudo apt-get install libcups2-dev libcupsimage2-dev git build-essential cups system-config-printer

get driver, make and install

git clone https://github.com/adafruit/zj-58
cd zj-58/
make
sudo ./install

Add printer

sudo lpadmin -p ZJ-58 -E -v serial:/dev/serial0?baud=9600 -m zjiang/ZJ-58.ppd
sudo lpoptions –d ZJ–58