"not defined error" please help

[TomGeorge]

@MicroBahner

If you do so, you use GPIO numbers directly. You can do so, and in my opinon its even the better way. But GPIO numbers do NOT directly correspond to Dx numbers! You have to know e.g. what gpio number D3 is ( usually D3 is GPIO 0 )

So @luxous might be worth using the GPIO pin numbers.

Tom...