Editing Odroid XU4 Weeding Spraying Robot

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I used all the GPIO IN/OUT pins between 1 and 40 of the first connector. I needed one more. There is only one more on the 12 pin connector but it is 1.8v not 5v logic.
 
I used all the GPIO IN/OUT pins between 1 and 40 of the first connector. I needed one more. There is only one more on the 12 pin connector but it is 1.8v not 5v logic.
  
Here I describe how to access pin 5 of CONN11, which is a 12 pin connector which was inaccessible using wiringPi library.  
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How to access pin 5 of CONN11, which is a 12 pin connector which was inaccessible using wiringPi library.  
  
 
First, here is the wiring diagram from pin 5 to a mosfet to control the solenoid valve which turns the spray OFF/ON. I mounted and soldered the parts onto the spare area of the shifter shield.
 
First, here is the wiring diagram from pin 5 to a mosfet to control the solenoid valve which turns the spray OFF/ON. I mounted and soldered the parts onto the spare area of the shifter shield.

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