en:c_lcdio [ODROID Wiki]

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====== 16x2 LCD + IO Shield on ODROID-C ======

{{http://dn.odroid.com/homebackup/16x2LCDIOKitH.jpg?500|}}

  * Blue and white 16x2 Character LCD.
  * 7 x Blue LEDs
  * 2 x tact switches
  * 4 x 6pin IO port

[[http://www.hardkernel.com/main/products/prdt_info.php?g_code=G141637550797|Where to buy]]

=== LCD pins ===
^Pin name^wiringPi num^Export GPIO num^^
^:::^:::^C0/C1/C1+^C2^
|LCD_RS|  #7  |  #83   |  #249  |
|LCD_EN|  #0  |  #88   |  #247  |
|LCD_D4|  #2  |  #116  |  #239  |
|LCD_D5|  #3  |  #115  |  #237  |
|LCD_D6|  #1  |  #87   |  #238  |
|LCD_D7|  #4  |  #104  |  #236  |

====== Build the wiringPi on ubuntu  ======

To use the LCD-IO Shield with wiringPi you build the wiringPi library first.

1. Get the wiringPi library compatible **ODROID Series**.
  git clone https://github.com/hardkernel/wiringPi

2. Build the library
  cd wiringPi
  ./build

====== Tutorials ======
=== Basic example ===
{{http://dn.odroid.com/homebackup/16x2LCDIOKitH.jpg?300|}}

1. Get a source code.\\
{{http://dn.odroid.com/source_peripherals/16x2lcdio/example-lcd.c|example-lcd.c}}
  wget http://dn.odroid.com/source_peripherals/16x2lcdio/example-lcd.c
2. Compile & Run
  gcc -o example-lcd example-lcd.c -lwiringPi -lwiringPiDev -lpthread
  sudo ./example-lcd

=== Display System Time ===
{{:en:c1:16x2lcd_time.jpg?300|}}

1. Get a source code.\\
{{http://dn.odroid.com/source_peripherals/16x2lcdio/lcd_time.c|lcd_time.c}}
  wget http://dn.odroid.com/source_peripherals/16x2lcdio/lcd_time.c
2. Compile & Run
  gcc -o lcd_time lcd_time.c -lwiringPi -lpthread
  sudo ./lcd_time
=== Interrupt example ===
1. Get a source code.\\
{{http://dn.odroid.com/source_peripherals/16x2lcdio/wiring_isr.c|wiring_isr.c}}
  wget http://dn.odroid.com/source_peripherals/16x2lcdio/wiring_isr.c
2. Compile & Run
  gcc -o wiring_isr wiring_isr.c -lwiringPi -lwiringPiDev -lpthread
  sudo ./wiring_isr
3. Push the SW1 on 16x2lcd board

** GPIO interrupt doens't work on the C2 yet. **

=== Display sensors value with Weather-Board ===


  * [[en:wb_c_16x2lcd | Display sensors value with Weather-Board]]