Device & model you are using: Pi 3
What dashboard are you using? Web, iOS
I am new to Pi, so not sure if I’m missing a step here or something, however I’ve got the Jessie image file from the RPi website, burn it to a 16Gb SD with Etcher, pop it in the RPi and boot it up. It expands the filesystem, does it’s magic and then puts me on the desktop. I normally go into Configure and set it to allow SSH and activate all the GPIO, etc. It reboots and then I use my iPhone to install Cayenne. The install goes through and I get the dashboard, however when I go to the GPIO screen everything is greyed out and when I try to add a widget it adds it but does nothing. It’s like it has not got access to GPIO? I also can’t change those config toggles in the app to activate I2C, etc.