Using an Arduino Uno and running High Sierra 10.13.3, I was able to upload and run the simple sketches found in "examples." I purchased several nanos and attempted to load them with the same simple sketches, but could not. Returning to use the Uno I discovered the same inability.I hope I was able to…

upload problems

Topic		Replies	Views
Brand new Arduino Nano will not upload Uploading	18	16087	May 6, 2021
Issue uploading sketches to board. Uploading	8	4060	May 6, 2021
Problem on a Program uploading. IDE 1.x	10	1583	May 5, 2021
Arduino UNO and Mac Mountain Lion problem IDE 1.x	19	3817	May 5, 2021
Problem uploading Arduino Uno [Mac] IDE 1.x	10	9412	May 5, 2021