I am new to Arduino. About a year ago, I purchased an Arduino UNO. I got interested in the tiny circuit used for the navigation lighting circuit driving LED's. Reading through the article, they showed the code being used. I had an idea thinking that I could copy the and paste it and upload it to the Arduino UNO circuit. Well apparently there are differences code wise between the tiny circuit and the UNO circuit. During the upload an error came up highlighting a line towards the bottom saying redefinition of void setup() { . I'm not sure how to rectify this and or is the code so far off that I would have to purchase a tiny circuit and not be able to use the UNO?? PS I'm not good on code!