GPIO not working

edited February 2020 in Supported devices

am using raspberrypie3b and i use qtcreator
W libLightControl.so: QIODevice::write (QFile, "/sys/class/gpio/export"): device not open
W libLightControl.so: QIODevice::write (QFile, "/sys/class/gpio/gpio24/value"): device not open
W libLightControl.so: cannot open "/sys/class/gpio/gpio24/direction"
W libLightControl.so: QIODevice::write (QFile, "/sys/class/gpio/gpio5/value"): device not open
W libLightControl.so: QIODevice::write (QFile, "/sys/class/gpio/gpio24/value"): device not open
W libLightControl.so: QIODevice::write (QFile, "/sys/class/gpio/gpio25/value"): device not open

can somene please assist me

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Comments

  • Make sure those files are accessible from your application. Check Linux file permissions.

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