One of the libraries I am using has this include statement: #include <avr/io.h> Code: Attempting to build with that library results in this error: Arduino: 1.8.9 (Windows Store 1.8.21.0) (Windows 10), Board: "UDOO QDL (Arduino Due)" Build options changed, rebuilding all C:\Users\pdblo\Box Sync\Personal\Arduino\libraries\PS2X_lib\PS2X_lib.cpp:5:20: fatal error: avr/io.h: No such file or directory #include <avr/io.h> ^ compilation terminated. exit status 1 This link below indicates that the error requires an update of the board package for Arduino Due: https://github.com/adafruit/Adafruit-GFX-Library/issues/121 When I follow the instructions in the UDOO Quad official docs and add the json file that it points me to, the latest board package for UDOO Quad is 1.6.7. Does this board package need to be updated? Phil
