Run program automatically


Sorry, I am relatively new w/ the Arduino UNO. I have my program coded and ready to go, but I need the Arduino to operate automatically once powered. In other words, I need the Arduino to be able to start on its own once power is supplied.

I have a string output through the USB port and sent to an RS-232 serial input. I have bought a USB type B to RS-232 serial adapter in order to send the string output directly from the Arduino to a control box to turn a stepper motor, bypassing the computer. This is why I need the program to run automatically once the Arduino is powered, without having to click "serial monitor" on the Arduino software environment.


The "program" already runs automatically when powered on.