GeorgeFlorian
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GeorgeFlorian reacted to martinayotte in How to redefine pins on a Banana Pi M3 ?
Are you sure ?
Even with a scope, floating pins will not show any voltage ...
Did you try using "gpiofs" ? Example for flashing GPIO147 (PE19 on pin 40) :
#!/bin/bash echo 147 > /sys/class/gpio/export echo out > /sys/class/gpio/gpio147/direction while true; do echo 0 > /sys/class/gpio/gpio147/value sleep 0.25 echo 1 > /sys/class/gpio/gpio147/value sleep 0.25 done