2 Sound & Display & Movement
===============================


.. toctree::
    :maxdepth: 1

    2.1_buzzer_alert_patterns
    2.2_musical_melody_player
    2.3_rgb_led_strip
    2.4_lcd_displayer
    2.5_motor_and_fan
    2.6_pump_control
    2.7_swinging_servo