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I just started my project using an arduino uno. What are some of the things that I may encounter when using the arduino uno?

Here is Yún forum, You might re-post it at Programming Questions.

DN6WE:
I just started my project using an arduino uno. What are some of the things that I may encounter when using the arduino uno?

Well, not quote sure how this relates to the Arduino Yun, which is on topic of this subforum.... :wink:
If your question was in fact in regards to differences between a Yun and an Uno, well, you need to remember that the Yun is based on the Arduino Leonardo, so first of all, the differences between Uno and Leonardo apply.
And secondly, there are a few differences between a Leonardo and a Yun, due to the way how on the later, the AVR part and the Linux part communicate.
More details can be found in the documentation, to be found here and here... :wink:

Ralf