Im getting my first ever arduino tomorrow. Im pretty excited about it and been watching lots of tutorials from youtube etc.
But then i came to up to something i couldnt find an answer to.
Suppose i make a circuit to my breadboard and upload my sketch in my arduino. Everything is working well. Then i want to make an another project. I disconnect the arduino board from my pc to get the power out. Then i remove the components from the breadboard. After that i will put my new projects circuit on the breadboard and make my sketch at the arduino software. I plug the board to my pc via the usb for e upload. Now what happens: arduinoboard gets power and starts to go throu my last projects software which is planned for the previous circuit and not intended for the current one.
Is there a change something could break before i get my current sketch uploaded.
Im going to use the arduino uno. (r3 i think...).
Thanks for the help in advance... Cant wait for tomorrow.