Differences

This shows you the differences between two versions of the page.

--- en:c_lcdio [2016/02/26 14:31]
john1117 created
+++ en:c_lcdio [2017/07/24 11:39] (current)
john1117 [Tutorials]
@@ Line 1: / Line 1: @@
-====== 16x2 LCD + IO Shield on ODROID-C2 ======
+====== 16x2 LCD + IO Shield on ODROID-C ======
 {{http://dn.odroid.com/homebackup/16x2LCDIOKitH.jpg?500|}}
@@ Line 11: / Line 11: @@
 === LCD pins ===
-^Pin name^Export GPIO num^wiringPi num^
+^Pin name^wiringPi num^Export GPIO num^^
-|LCD_RS|#249|7|
+^:::^:::^C0/C1/C1+^C2^
-|LCD_EN|#247|0|
+|LCD_RS|  #7  |  #83   |  #249  |
-|LCD_D4|#239|2|
+|LCD_EN|  #0  |  #88   |  #247  |
-|LCD_D5|#237|3|
+|LCD_D4|  #2  |  #116  |  #239  |
-|LCD_D6|#238|1|
+|LCD_D5|  #3  |  #115  |  #237  |
-|LCD_D7|#236|4|
+|LCD_D6|  #1  |  #87   |  #238  |
+|LCD_D7|  #4  |  #104  |  #236  |
-====== Use to LCD with wiringPi on ubuntu  ======
+====== Build the wiringPi on ubuntu  ======
+<WRAP center round important 100%>
+**Note**
+  * Before starting this guide, you should check whether the 1-wire module is loaded or not. Because 1-wire and LCD_RS share the GPIOX_21 pin.
+<code>
+odroid@odroid64:~$ lsmod
+Module                  Size  Used by
+w1_gpio                 3785  0
+wire                   25687  1 w1_gpio
+(...)
+</code>
+  * If 1-wire module is loaded, then please unload the 1-wire modules.
+</WRAP>
+To use the LCD-IO Shield with wiringPi you build the wiringPi library first.
 . Get the wiringPi library compatible **ODROID Series**.
@@ Line 25: / Line 39: @@
 . Build the library
   cd wiringPi
   ./build
 ====== Tutorials ======
 === Basic example ===
 {{http://dn.odroid.com/homebackup/16x2LCDIOKitH.jpg?300|}}
+. 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
+. Compile & Run
   gcc -o example-lcd example-lcd.c -lwiringPi -lwiringPiDev -lpthread
   sudo ./example-lcd
@@ Line 38: / Line 54: @@
 === Display System Time ===
 {{:en:c1:16x2lcd_time.jpg?300|}}
+. 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
-  gcc -o lcd_time lcd_time.c -lwiringPi -lpthread
+. Compile & Run
+  gcc -o lcd_time lcd_time.c -lwiringPi -lwiringPiDev -lpthread
   sudo ./lcd_time
 === Interrupt example ===
+. 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
-  gcc -o wiring_isr wiring_isr.c -lwiringPi -lpthread
+. Compile & Run
-Push your SW1 on 16x2lcd board
+  gcc -o wiring_isr wiring_isr.c -lwiringPi -lwiringPiDev -lpthread
   sudo ./wiring_isr
+. Push the SW1 on 16x2lcd board
 === Display sensors value with Weather-Board ===
-  * [[c1_wb_16x2lcd | Display sensors value with Weather-Board]]
+  * [[en:wb_c_16x2lcd | Display sensors value with Weather-Board]]