I cannot get any code for my DUE to compile if I include ThingSpeak.h, get the following error:
#error Only Arduino Yun, Uno/Mega/Due with either Wired or wi-fi Ethernet shield, ESP8266, and Spark Core/Photon/Electron are supported.
My setup is a DUE with the Adafruit CC3000 breakout. The code is literally just the adafruit CC3000 example with "#include <ThingSpeak.h>" at the top. If I remove that library include then the wifi example code works great and connect to my network and successfully pings adafruit.com.
I have used IDE 1.6.6 and 1.6.8.
Any advice would be greatly appreciated.