The IO pins are all set to input / high impedence when the chip is first powered on or after a reset. Nothing will be "on" until you explicitly command it in your code.
It's a safety thing, or just makes sense I guess.
The IO pins are all set to input / high impedence when the chip is first powered on or after a reset. Nothing will be "on" until you explicitly command it in your code.
It's a safety thing, or just makes sense I guess.