| ControlledServo | A library to have more control over the movement of a servo. |
| LitSwitch | A special library for an LED/momentary switch hardware combination. |
| MillisTimer | A timer library for working with millis(). |
| SoftPWM | A software library to produce a 50 percent duty cycle PWM signal on arbitrary pins. |
| Tone | A software digital square wave tone generation library. |
| WireData | A library to simplify sending data via I2C (aka TWI). |