Control Gateway GPIOs & LEDs

Version 14.2 by Xiaoling on 2022/05/07 16:21
Contents

Products LEDs Mapping

ModelGlobal LEDPWR LEDLAN LEDWAn LEDWIFI LEDSENSOR LED4G control (Second +3.3v)USB POWER(+5v) Control
LPS8

GPIO28(BLUE),

GPIO21(RED),

GPIO22(GREEN)

 

+3.3v

          

 GPIO17(RED)    
LPS8N

GPIO28(BLUE),

GPIO21(RED),

GPIO22(GREEN)

 

+3.3v

 GPIO17(RED)

GPIO16(BLUE),

GPIO26(RED),

GPIO27(GREEN)

 GPIO15 
LG308GPIO28(RED)+3.3vGPIO13(RED) GPIO17(RED) GPIO0(RED) GPIO15 GPIO1
DLOS8GPIO28(GREEN)+3.3v GPIO17(GREEN) GPIO0(GREEN) GPIO15 GPIO1
HP0CPA8(GREEN),PA9(RED)+3.3vEPHY-LINK-LED(GREEN),PA17(BLUE) PA7(RED)   
HP0APA8(GREEN)+3.3vEPHY-LINK-LEDPA9(RED)PA7(RED) PA17 
IBBGPIO28(GREEN)+3.3vGPIO13(GREEN)GPIO17(GREEN)GPIO0(GREEN)SENSOR_LED GPIO1
LIG16GPIO28(RED)+3.3vGPIO22(GREEN)GPIO17(GREEN)GPIO0(GREEN)GPIO21(GREEN)  
MS14NGPIO28(GREEN)+3.3vGPIO13(GREEN)GPIO17(GREEN)GPIO0(GREEN)SENSOR_LED GPIO1

Control LEDs & GPIOs

OpenWrt Base OS

Control a General GPIO:

echo 18 > /sys/class/gpio/export     // Export gpio 18 so we can use it
echo "high" > /sys/class/gpio/gpio18/direction   //  Set direction to out and
set level to high. Use "low" to set direction to output and level to low

echo 0 > /sys/class/gpio/gpio18/value    // Set output to 0 or 1
echo "in" > /sys/class/gpio/gpio18/direction  // Set GPIO18 as input

cat  /sys/class/gpio/gpio18/value  // Get GPIO18 value if set input

Control a GPIO already exported as SYSTEM LEDs .
echo 1 > /sys/class/leds/dragino2\:red\:system/brightness  // Turn On LED dragino2:red:system
echo 0 > /sys/class/leds/dragino2\:red\:system/brightness  // Turn off LED dragino2:red:system

Reference: http://www.avrfreaks.net/wiki/index.php/Documentation:Linux/GPIO#gpio-sysfs

Tags:
Created by Edwin Chen on 2022/05/03 07:52
    

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