#i2c lcd

You can learn something new & interesting.

* reference https://www.raspberrypi.org/forums/viewtopic.php?f=35&t=108385

1. i2c tools, LCDproc 패키지 설치

sudo apt-get update sudo apt-get -y install dpkg-dev gcc sudo apt-get -y install lcdproc lcdproc-extra-drivers sudo apt-get -y install i2c-tools

2. Edit configure

sudo echo ”i2c-bcm2708″ >> /etc/modules sudo echo "i2c-dev" >> /etc/modules sudo echo "dtparam=i2c_arm=on" >> /boot/config.txt

3. 라즈베리파이 용 HD44780.so 설치 및 LCDd.conf 수정

wget http://zzeromin.cafe24.com/hd44780.so sudo cp hd44780.so /usr/lib/arm-linux-gnueabihf/lcdproc/ sudo wget -O /etc/LCDd.conf http://zzeromin.cafe24.com/LCDd.conf sudo /etc/init.d/LCDd restart

4. Install and configure LCDproc Addon for OSMC

* Enable/install LCDproc via OSMC In the OSMC manin menu got to Settings >> Add-ons >> Get add-ons >> XBMC/Kodi add-on repository >> Services >> XBMC LCDproc >> Install

* Configure scrolling speed  LCDproc via OSMC Settings - Add-ons - XBMC LCDproc - Configure - Behaviour - Delay for scrolling text - 0~10

5. Etc 재시작 명령어

sudo systemctl restart LCDd.service

* LCDd.conf

## This file was written by cme command. ## You can run 'cme edit <application>' to modify this file. ## Run 'cme list' to get the list of applications available on your system ## You may also modify the content of this file with your favorite editor.

[server] DriverPath=/usr/lib/arm-linux-gnueabihf/lcdproc/ Driver=hd44780 Bind=127.0.0.1 Port=13666 User=nobody WaitTime=3 ServerScreen=no

NextScreenKey=Right PrevScreenKey=Left ReportToSyslog=yes ToggleRotateKey=Enter

[menu] DownKey=Down EnterKey=Enter MenuKey=Escape UpKey=Up

for volumio 1.55 Pi2 CLCD 5V I2C 16x2

Command:

sudo apt-get update

sudo apt-get -y install python-smbus i2c-tools

echo "i2c-bcm2708" >> /etc/modules

echo "i2c-dev" >> /etc/modules

echo "dtparam=i2c_arm=on" >> /boot/config.txt sudo reboot

* 참고

sudo i2cdetect -y 0 (if you are using a version 1 Raspberry Pi)

1. 서비스 파일 만들기 [Create this file]

#Type in the following command:

nano /usr/lib/systemd/system/ra-i2c-lcd.service

#And paste the following into the file:

[Unit] Description=RA_I2C_LCD service After=network.target

[Service] ExecStartPre=/usr/bin/sh -c "sleep 3" ExecStart=/usr/bin/python2 /root/RA_I2C_LCD.py TimeoutSec=0 Restart=on-failure

[Install] WantedBy=multi-user.target

2. 시스템 시작시 서비스 실행하기 [Enable RA-I2C-LCD on startup]

systemctl enable ra-i2c-lcd.service