3. micro:Maqueen Introduction# 3.1. Overview and Features 3.1.1. Features 3.1.2. Mechanic Expansion 3.2. Assembly Instructions 3.2.1. In the Box 3.2.2. Unboxing and Assembly 3.2.3. Summary 3.3. Power 3.3.1. Batteries 3.3.2. Power Switch 3.4. Driving Lights 3.4.1. Digital Write 3.4.2. Controlling LEDs 3.5. RGB LEDs 3.5.1. WS2812 3.5.2. Initialisation 3.5.3. Setting Colours 3.5.4. Showing Colours 3.6. Exercise: Light Show 3.7. Motors 3.7.1. Driving the Motors 3.8. Sonar Distance Sensor 3.8.1. Reading the Distance 3.9. Exercise: Rodeo 3.10. Line Sensors 3.10.1. Digital Read 3.10.2. Reading Sensors 3.10.3. Line LEDs 3.10.4. Sensor Calibration 3.11. Exercise: Line 3.12. Gripper 3.12.1. Gripper Control 3.13. Gripper Assembly 3.14. Exercise: Rescue