ESP32-C3 Rainbow LED Strip
This is an example of how to use the Espressif ESP32-C3-DevKitM-1 to drive a WS2812B-64 Led Strip. The WS2812 is a digital RGB LED which integrates a driver circuit and a single control wire. This example will illustrate how to drive an WS2812B-64 LED strip but can be easily adopted to drive a led strip of a different size.
How to Use Example
* A development board with an ESP32 SoC, in this case we are using the new ESP32-C3DevKitM1
* A USB cable for Power supply and programming
* A WS2812 LED strip
GPIO2 +-----------------+---|>| (WS2812B-64)
Configure your computer:
This presumes some version of Linux or MacOS with dev tools installed and a python version 3.8 (as of now 3.9 will not work). Details can be found [here](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/get-started/#step-1-install-prerequisites)
mkdir -p ~/esp
git clone --recursive https://github.com/espressif/esp-idf.git
git clone https://github.com/cashoefman/esp32-c3-rainbow-led-strip.git
Open the project configuration menu (`idf.py menuconfig`).
In the `Example Connection Configuration` menu:
* Set the GPIO number used for transmitting the IR signal under `RMT TX GPIO` optin. (Default is 2)
* Set the number of LEDs in a strip under `Number of LEDS in a strip` option. (Default is 64)
Build and Flash:
To exit the serial monitor, type ``Ctrl-]``.
Connect the `Input` signal of WS2812B-64 LED strip to the GPIO you set in menuconfig and connect power to the Led Strip.
When you run the example, you will see a rainbow effect. To change the speed, you can update the `EXAMPLE_CHASE_SPEED_MS` value in `led_strip_main.c` file.