I can not find a way to clear my UNO
I have worked with micro controllers before and this is always the first thing to do before wiring up a new circuit. I have searched the subject and it appears, against all reasonable logic, that one just builds a new circuit, then connect the power, which loads the previous circuit program. How can this not immediately destroy everything?
Maybe I just am not understanding the most fundamental things here.
I just received my UNO today and have the blink program running. I created a new sketch with nothing entered, clicked upload, but that does not clear it.
So, if it is true that one just creates any circuit and powers it up with any program, that does not fry it, please explain why it does not destroy it. If there is a way to clear first, please post the sketch.
Stuck at the plate for now, what do I do?