Unity 5 Accelerometer-based game object rotation

gistfile1.txt

float x = -Input.acceleration.x * 180;
float y = Input.acceleration.y * 180;
x = limit (x, MAX_ANGLE);
y = limit (y, MAX_ANGLE);
Quaternion quato = Quaternion.Euler(y, 0, x);
rb.transform.rotation = Quaternion.Lerp(rb.transform.rotation, quato, Time.deltaTime * 5.0f);