GPIO pins can be controlled as either input or output pins:
- Output digital pins are writable as
highorlow. - Input digital pins are readable as
highorlowand generate interrupts on changes. PWMoutput pins are writable with values between0and255.
Céu-Arduino currently provides the following drivers:
- Digital Output
- Digital Input
- With external interrupts
- With pin-change interrupts
- Difference between external and pin-change interrupts:
- PWM Output: