Yes.
The instructions in your link say to use a DFRduino UNO in order to give you the idea that you must use their Uno clone instead of a genuine Uno or an Uno clone from any of 100 other manufacturers. This technique is called "Marketing".
Yes.
The instructions in your link say to use a DFRduino UNO in order to give you the idea that you must use their Uno clone instead of a genuine Uno or an Uno clone from any of 100 other manufacturers. This technique is called "Marketing".