| Class Summary | 
| DigitalInput | Orc wrapper for Digital inputs (using built-in pull-ups.) | 
| Gyro | Orc wrapper for Gyro angular rate sensor. | 
| IRCalibrate | A simple application for collecting data from IR range finders so
 that the parameters of their distance-fitting function can be
 computed. | 
| IRRangeSensor | Orc wrapper for Infra-red range sensors. | 
| Motor | Orc wrapper for a motor. | 
| Orc | Low-level access to the OrcBoard; when possible, use a wrapper
 class. | 
| Servo | Orc wrapper for a servo. | 
| UltrasoundRangeSensor | Orc wrapper for ultrasound range sensors. |