BigChris

I think i answer myself
 
I am to stupid to do it like i want, with python. But, shell scripts work everywhere an i understand it in most cases. So, here is an solution for my Problem.
 
I use PIN 18, which Linux GPIO is 201. I pot a pullup resistor (10kOhm) to PIN 17 - 3,3V.
After this, i configure the PIN18.
echo 201 > /sys/class/gpio/export echo "in" > /sys/class/gpio/gpio201/direction Now i can check the value

 
cat /sys/class/gpio/gpio201/value The answer should be 1.
If now the PIN18 is shorted to PIN 20 (GND), the answer is 0.

A little script does it for me:
#!/bin/sh BUTTON=201 # shutdown button echo "$BUTTON" > /sys/class/gpio/export echo "in" > /sys/class/gpio/gpio$BUTTON/direction while true ; do   data=`cat /sys/class/gpio/gpio$BUTTON/value`   if [ "$data" -eq "0" ] ; then     shutdown -h now   else     cnt=0 fi   done
 
 
 
 

I want to use a shutdown button to make a secure shutdown with the nanopi neo air. But i am completly lost how it works. I don't find out, which GPIO's i can use for a script.  And if i need a puuldown or not.
Can somebody help me?
 
Thanks 
Chris

Thank you very much. 
 
I use armbian since a while on cubietruckl, i don't get the idea that it is still the same with nand-sata-install.
Shame on me, life can be so easy

Ok
Thx! I've use an older image on an other CT and i loving it!