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headers already sent by (output started at [ROOT]/includes/functions.php:3823) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4694: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4695: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4696: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823) 8devices Community - View topic - Controling gpios as file failed.
It seems like the GPIO port is blocked/used by another process in the background. Check if you have installed a GPIO related package which reserves the IO-ports.
Skib
04 Dec 2012, 18:03
David
Joined: 16 Dec 2011, 14:44 Posts: 105 Location: The Netherlands
Only a couple of GPIO pins are exportable. Try exporting different GPIO ports until you find one that works out-of-the-box. GPIO 1 and 2 are reserved by the I2C driver, I believe.
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