Add led to cayenne

[shramik_salgaonkar]

@mrcsollo welcome to cayenne community. you may be running on 4.9 kernel. but this bug was solved. @rsiegel tagging for this. till then try this:

GPIO dashboard

Hi @mike7 and welcome to the Cayenne Community. The issue is that webiopi, a component of the Cayenne Pi software, is not yet compatible with the 4.9 Linux Kernel. There are a few options to resolve this until we push an update with support for this kernel: If you have no specific need for the 4.9 kernel on your Pi (most people would not), you can downgrade to 4.4 by running this command (it will require a reboot after it runs) sudo rpi-update 52241088c1da59a359110d39c1875cda56496764 Aft…