# @extends

## Projects #projects

* [Maker](/maker)
    * [Sound Machine](/maker/sound-machine)
    * [Sound of Color](/maker/sound-of-color)
    * [Security Gadget](/maker/security-gadget)
    * [Intruder detector](/maker/intruder-detector)
    * [Puppet](/maker/puppet)

* [Coding](/coding)
    * [Three Point Turn 1](/coding/three-point-turn-1)
    * [Three Point Turn 2](/coding/three-point-turn-2)
    * [Three Point Turn 3](/coding/three-point-turn-3)
    * [Reversing the robot 1](/coding/reversing-the-robot-1)
    * [Reversing the robot 2](/coding/reversing-the-robot-2)
    * [Reversing the robot 3](/coding/reversing-the-robot-3)
    * [Light the way 1](/coding/light-the-way-1)
    * [Light the way 2](/coding/light-the-way-2)
    * [Light the way 3](/coding/light-the-way-3)
    * [Traffic Lights 1](/coding/traffic-lights-1)
    * [Traffic Lights 2](/coding/traffic-lights-2)
    * [Traffic Lights 3](/coding/traffic-lights-3)
    * [Reverse Beeper 1](/coding/reverse-beeper-1)
    * [Reverse Beeper 2](/coding/reverse-beeper-2)
    * [Reverse Beeper 3](/coding/reverse-beeper-3)
    * [Ignition 1](/coding/ignition-1)
    * [Ignition 2](/coding/ignition-2)
    * [Ignition 3](/coding/ignition-3)
    * [Cruise Control 1](/coding/cruise-control-1)
    * [Cruise Control 2](/coding/cruise-control-2)
    * [Cruise Control 3](/coding/cruise-control-3)
    * [Roaming 1](/coding/roaming-1)
    * [Roaming 2](/coding/roaming-2)

* [Lessons](/lessons)
    * [Make it move](/lessons/make-it-move)
    * [Line detection](/lessons/line-detection)

## Reference #reference

* [Reference](/reference)
    * [Brick](/reference/brick)
        * [show string](/reference/brick/show-string)
        * [show number](/reference/brick/show-number)
        * [show value](/reference/brick/show-value)
        * [show mood](/reference/brick/show-mood)
        * [show image](/reference/brick/show-image)
        * [clear screen](/reference/brick/clear-screen)
        * [print ports](/reference/brick/print-ports)
        * [on event](/reference/brick/button/on-event)
        * [is pressed](/reference/brick/button/is-pressed)
        * [was pressed](/reference/brick/button/was-pressed)
        * [pause until](/reference/brick/button/pause-until)
        * [set light](/reference/brick/set-light)
        * [battery level](/reference/brick/battery-level)