GPIO Node Red
Need to ask do onion.io have any add on for GPIO for Node Red? or some one else have or have good way to do this.
I know the onion-gpio-sysfs library for Python utilizes calls to sysfs to control and monitor GPIO lines. I did a quick google for node red sysfs GPIO and came up with this:
Might give it a shot, I haven't tried it but I'd say there's a decent shot at it working.
dont't know if this will help. I can toggle a led that is attached to GPIO18 by this flow. So it is possible to manage GPIO output or input by system commands