.. note::

    Hello, welcome to the SunFounder Raspberry Pi & Arduino & ESP32 Enthusiasts Community on Facebook! Dive deeper into Raspberry Pi, Arduino, and ESP32 with fellow enthusiasts.

    **Why Join?**

    - **Expert Support**: Solve post-sale issues and technical challenges with help from our community and team.
    - **Learn & Share**: Exchange tips and tutorials to enhance your skills.
    - **Exclusive Previews**: Get early access to new product announcements and sneak peeks.
    - **Special Discounts**: Enjoy exclusive discounts on our newest products.
    - **Festive Promotions and Giveaways**: Take part in giveaways and holiday promotions.

    👉 Ready to explore and create with us? Click [|link_sf_facebook|] and join today!

.. _ar_flowing_light:

6.2 Flowing Light
=======================

Have you ever wanted to add some fun and interactive element to your living space? 
This project involves creating a running light using WS2812 LED strip and a obstacle avoidance module. 
The running light changes direction when an obstacle is detected, making it an exciting addition to your home or office decor.

**Required Components**

In this project, we need the following components. 

It's definitely convenient to buy a whole kit, here's the link: 

.. list-table::
    :widths: 20 20 20
    :header-rows: 1

    *   - Name	
        - ITEMS IN THIS KIT
        - LINK
    *   - ESP32 Starter Kit
        - 320+
        - |link_esp32_starter_kit|

You can also buy them separately from the links below.

.. list-table::
    :widths: 30 20
    :header-rows: 1

    *   - COMPONENT INTRODUCTION
        - PURCHASE LINK

    *   - :ref:`cpn_esp32_wroom_32e`
        - |link_esp32_wroom_32e_buy|
    *   - :ref:`cpn_esp32_camera_extension`
        - |link_esp32_extension_board|
    *   - :ref:`cpn_wires`
        - |link_wires_buy|
    *   - :ref:`cpn_avoid`
        - |link_avoid_buy|
    *   - :ref:`cpn_ws2812`
        - |link_ws2812_buy|

**Schematic Diagram**

.. image:: ../../img/circuit/circuit_6.2_flowing_led.png
    :align: center

The WS2812 LED strip is composed of a series of individual LEDs that can be programmed to display different colors and patterns. 
In this project, the strip is set up to display a running light that moves in a particular direction and 
changes direction when an obstacle is detected by the obstacle avoidance module.


**Wiring**

.. image:: ../../img/wiring/6.2_flowing_light_bb.png
    

**Code**

.. note::

    * You can open the file ``6.2_flowing_led.ino`` under the path of ``esp32-starter-kit-main\c\codes\6.2_flowing_led`` directly.
    * Or copy this code into Arduino IDE.

.. raw:: html

    <iframe src=https://create.arduino.cc/editor/sunfounder01/ff625cb6-2efd-436a-9b59-5dd967191338/preview?embed style="height:510px;width:100%;margin:10px 0" frameborder=0></iframe>

This project extends the functionality of the :ref:`ar_rgb_strip` project by adding the ability to display random colors on the LED strip. 
Additionally, an obstacle avoidance module has been included to dynamically change the direction of the running light.