Show pageOld revisionsBacklinksAdd to bookBack to top Search You can find the results of your search below. SearchEnds withExact matchStarts withEnds withContains@tips:radxaAny namespaceAny timeAny timePast weekPast monthPast yearSort by hitsSort by hitsSort by last modifiedFulltext results:gpio 1 Hits, Last modified: 10 years agot read GPIO]] Power on blue led <code bash> echo default-on > /sys/class/leds/blue/trigger </code> Power