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--- products:sbc:common:applications:gpio:40pin-header [2022/10/18 03:14]
hyphop
+++ products:sbc:common:applications:gpio:40pin-header [2023/08/16 06:31]
jacobe [Troubleshooting]
@@ Line 3: / Line 3: @@
 ====== GPIO Header ======
-Universal GPIO 40 pins board header, used for communication between board and different external devices.
+===== GPIO usage examples =====
-===== Control GPIO examples =====
 <WRAP important >
@@ Line 16: / Line 14: @@
 ```shell
-$ echo 465 | sudo tee /sys/class/gpio/export
+$ echo 111 | sudo tee /sys/class/gpio/export
 ```
@@ Line 24: / Line 22: @@
 ```shell
-$ echo out | sudo tee /sys/class/gpio/gpio465/direction # Set GPIO output
+$ echo out | sudo tee /sys/class/gpio/gpio111/direction # Set GPIO output
-$ echo in | sudo tee /sys/class/gpio/gpio465/direction # Set GPIO input
+$ echo in  | sudo tee /sys/class/gpio/gpio111/direction # Set GPIO input
 ```
@@ Line 38: / Line 36: @@
 ```shell
-$ cat /sys/class/gpio/gpio465/value # Get GPIO input value
+$ cat /sys/class/gpio/gpio111/value # Get GPIO input value
 ```
@@ Line 44: / Line 42: @@
 ```shell
-$ echo 465 | sudo tee /sys/class/gpio/unexport
+$ echo 111 | sudo tee /sys/class/gpio/unexport
 ```
@@ Line 52: / Line 50: @@
 ```shell
-khadas@Khadas:~$ echo 465 | sudo tee /sys/class/gpio/export
+khadas@Khadas:~$ echo 111 | sudo tee /sys/class/gpio/export
 tee: /sys/class/gpio/export: Invalid argument
 ```

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