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--- en:xu3_enhancement_gpio12 [2015/08/20 15:56]
charles.park
+++ en:xu3_enhancement_gpio12 [2015/08/20 15:57] (current)
charles.park
@@ Line 1: / Line 1: @@
+====== Basics of 12pin Port ======
+The **ODROID-XU4** provides 12Pin GPIOs.
+{{http://dn.odroid.com/wiki_image/xu4/xu4_con11.jpg}}
+**Easy to use GPIOs**\\
+First, you refer to below link.\\
+You check Export number that you want to use GPIO.\\
+[[en:xu4_hardware_gpio | Pin description]]
+Create a GPIO file access.\\
+You can access GPIOs using sysfs interface.
+  echo 34 > /sys/class/gpio/export
+Configure the pin direction (in/out)
+  echo in > /sys/class/gpio/gpio34/direction
+Read a value
+  cat /sys/class/gpio/gpio34/value