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 [here] and join today!

LESSON 20: For Loops in Arduino

This lesson demonstrates how to create a user-controlled RGB LED system using the Arduino, where the user can specify the number of blinks through the serial monitor. Here’s a brief overview of what you will learn:

  1. Reviewing Previous Homework: Recapping the assignment from Lesson 19, which involved blinking an RGB LED in a red-green-blue sequence for 25 cycles.

  2. Setting Up the Circuit: Detailed instructions on how to correctly connect an RGB LED and its current-limiting resistors to the Arduino. Each color channel (red, green, blue) is connected to a PWM digital pin (pins 9, 10, and 11), and the common cathode (long leg) is connected to ground.

  3. Writing the Code: Step-by-step coding instructions to:Define the pins for each color channel of the RGB LED.Set up the serial monitor for user input.Use analog write commands to control the brightness of each color channel.Implement a for loop to control the number of blink cycles based on user input.Ensure the program stops after the specified number of blinks.

  4. Debugging Tips: Guidance on troubleshooting common issues such as:Correcting syntax errors in the code.Ensuring the program loops the correct number of times.Handling user input correctly and stopping the program after the specified cycles.

  5. Practical Applications: Examples of using for loops to repeat a sequence of actions a specified number of times.

  6. Homework Assignment: Repeating the blink sequence a user-specified number of times without using a for loop.Ensuring the program stops after the specified number of blinks.

Video