kernel::hil::servo

Trait Servo

Source 
pub trait Servo<'a> {
    // Required methods
    fn set_angle(&self, angle: u16) -> Result<(), ErrorCode>;
    fn get_angle(&self) -> Result<usize, ErrorCode>;
}

Required Methods§

Source

fn set_angle(&self, angle: u16) -> Result<(), ErrorCode>

Changes the angle of the servo. Return values:

  • Ok(()): The attempt at changing the angle was successful.
  • FAIL: Cannot change the angle.
  • INVAL: The value exceeds u16, indicating it’s incorrect since servomotors can only have a maximum of 360 degrees.
  • NODEVICE: The index exceeds the number of servomotors provided.
§Arguments
  • angle - the variable that receives the angle (in degrees from 0 to 180) from the servo driver.
Source

fn get_angle(&self) -> Result<usize, ErrorCode>

Returns the angle of the servo. Return values:

  • angle: The value, in angles from 0 to 360, of the servo.
  • NOSUPPORT: The servo cannot return its angle.
  • NODEVICE: The index exceeds the number of servomotors provided.

Implementors§