| RBD_Button | Read and debounce buttons and switches. |
| RBD_Capacitance | Measure change in capacitance. |
| RBD_HumanSensor | Detect human presence, touch, and pickup events. |
| RBD_Light | Control many lights. |
| RBD_LightSensor | Read and calibrate photoresistors. |
| RBD_Motor | Control many motors without delay. |
| RBD_SerialManager | A simple interface for serial communication. |
| RBD_Servo | Control many servos without delay. |
| RBD_Threshold | Set and check numeric quantile scales. |
| RBD_Timer | Manage many timed events. |
| RBD_WaterSensor | Measure and calibrate water level sensors. |