Hi everyone, I'm new to Udoo and new to programming so please treat me as if I know nothing because that is where I'm at. I have a Udoo extended and have it booted up. I've been able to change the direction on GPIO_102 and GPIO_22 to OUT, but, on both pins when I echo 1 for value it doesn't change. What am I missing? root@udooneo:/home/udooer# echo 102 > /sys/class/gpio/export root@udooneo:/home/udooer# echo out > /sys/class/gpio/gpio102/direction root@udooneo:/home/udooer# cat /sys/class/gpio/gpio102/direction out root@udooneo:/home/udooer# echo 1 > /sys/class/gpio/gpio102/value root@udooneo:/home/udooer# cat /sys/class/gpio/gpio102/value 0 This is what I typed. I'm working on a rather large project so I'll definitely be coming back for more help. Thanks
Why dont you use the simpler GPIO way of working https://www.udoo.org/docs-neo/Hardware_&_Accessories/GPIO.html Export is already done by the udoo-gpio-export package so no need to do that again. Write values To write a low or high value on a GPIO, you need to write 0 or 1 in the value file: # set GPIO 25 to low value - 0 volts echo 0 > /gpio/pin25/value # set GPIO 25 to high value - 3.3 volts echo 1 > /gpio/pin25/value
