Add RGB LED demo example for Arduino Giga R1 WiFi

[VSDeveleoper]

Description

This pull request adds a new example sketch demonstrating how to control the built-in RGB LED on the Arduino Giga R1 WiFi board using Serial commands.

The sketch allows users to:

• Turn on the LED in Red, Green, or Blue colors
• Blink the LED in each color
• Turn off the LED

File Location

hardware/arduino/mbed/variants/GIGA/examples/GigaWiFi_RGB_LED_Demo/GigaWiFi_RGB_LED_Demo.ino

Why it's useful

This example provides Giga users with an easy, hands-on way to experiment with the built-in RGB LED, using only Serial input — no extra wiring or libraries needed. It’s beginner-friendly and suitable as a built-in reference.

Tested On

• Arduino Giga R1 WiFi
• Arduino IDE 2.x

Author

Ahmed Sharaf (Tech Forge International LLC)

🛠️ Note: The "Java CI" check is failing due to the use of a deprecated actions/upload-artifact@v1 in the upstream workflow.
This is unrelated to the example code in this pull request, which has been tested and works as intended on the Arduino Giga R1 WiFi.

[CLAassistant]

All committers have signed the CLA.

[per1234]

Hi @VSDeveleoper. Thanks for taking the time to submit a pull request.

We do not distribute example sketches like this by bundling them with the Arduino IDE 1.x application, so we can not accept your proposal.

I recommend you publish this sketch in a dedicated repository maintained under your own GitHub account. That will be the best way to share it with the Arduino community.

If you like, you can also submit a companion tutorial to the Arduino Project Hub:

https://projecthub.arduino.cc/