Hi I am very new to the Arduino world. I am PLC programmer by profession and trying to explore the possibilities of Arduino programming. I would like to know 1. if I can upload and download the program or not. 2. When I open few examples in IDE I find there are multiple sketches, so when I will download will all the sketches will be downloaded to the controller or just the one which is open in the window.
A prompt reply will be appreciated
Regards Asish Sharma