use sega_controller::mega_drive::{MegaDriveButton, MegaDriveController};
use sega_controller::Error;
// Using some kind of hal like `arduino_hal`
// NOTE: You should have pull-up resistors on these pins (10k ohm)
let controller = MegaDriveController::from_pins(
    pins.d8.into_output(),          // select pin
    pins.d2.into_floating_input(),  // data pin 0
    pins.d3.into_floating_input(),  // data pin 1
    pins.d4.into_floating_input(),  // data pin 2
    pins.d5.into_floating_input(),  // data pin 3
    pins.d6.into_floating_input(),  // data pin 4
    pins.d7.into_floating_input(),  // data pin 5
);
// Only do this once every frame (16ms)
match controller.read_state() {
    Ok(state) => {
        if state.is_six_button {
            // do something special for six-button controllers if you like
        }
        
        if state.is_pressed(MegaDriveButton::Start) {
            // start button is currently held down
        }
    }
    Err(Error::NotPresent) => {} // controller is not connected
    _ => {}
}