Sorry for late reply here. Welcome to the Cayenne community!
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We’ve just released Android support for Arduino. If you download latest version of Cayenne, you will see Arduino support.
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We are still coming up with a product mix for commercialization of Cayenne. Cayenne will always be free to makers though. Perhaps you can send me email and we can further talk about your needs from Cayenne for commercialization? bestes@mydevices.com
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You can view an array of videos in our Videos section in the community.
Videos - myDevices Cayenne Community
And, if you are using the ESP8266, here is the how-to :
Looking forward to hearing from you,
-Benny