* Improve RGB LED Driver
Replaces the use of the `LED_BUILTIN` variable by creating a new variable called `RGB_BUILTIN`. On boards with both a regular LED and RGB LED, this change provides functionality to control either LED.
The `LED_BRIGHTNESS` variable is changed to `RGB_BRIGHTNESS`, which aligns more closely with the `RGB_BUILTIN` variable name.
`BOARD_HAS_NEOPIXEL` is no longer necessary; it is replaced by `RGB_BUILTIN`.
* Update BlinkRGB example
Update example code for changes with the RGB driver:
- Replace `LED_BUILTIN` and `BOARD_HAS_NEOPIXEL` with `RGB_BUILTIN`
- Replace `LED_BRIGHTNESS` with `RGB_BRIGHTNESS`
* Update board variants
Update board variants for changes with the RGB driver:
- Remove `BOARD_HAS_NEOPIXEL`
- Define `RGB_BUILTIN` pin
- Replace `LED_BRIGHTNESS` with `RGB_BRIGHTNESS` to align with `RGB_BUILTIN` name
Co-authored-by: Rodrigo Garcia <rodrigo.garcia@espressif.com>
Co-authored-by: Vojtěch Bartoška <76958047+VojtechBartoska@users.noreply.github.com>
* Initial implementation of RGB driver via digitalWrite
* Moved constants to pins_arduino.h
* Changed pin definition + added example
* Wrapped BlinkRGB in #ifdef BOARD_HAS_NEOPIXEL
* Removed forgotten log from example
* Moved RGBLedWrite to new file esp32-hal-rgb-led and created pinMode in variatn.cpp
* Updated example - lowered single channel brightness to LED_BRIGHTNESS
* Changed function name from RGBLedWrite to neopixelWrite + code polishing
* Moved pinSetup portion related to RGB back to common file
