Page 141 - KEC Khaitan C8.2 Flipbook
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Going Beyond Basics: Using a NeoPixel LED Strip
                 If you’d like more vibrant or dynamic color displays, consider a NeoPixel LED strip (WS2812B).
                 These individually addressable LEDs allow animations, smooth transitions, and complex color
                 patterns—all controlled by a single Arduino data pin.

                 Why NeoPixels?

                   Dynamic  Effects: For instance,  fade  in/out  or create  “sparkles”  corresponding  to  different
                    expressions.
                   Scalability: Add more LEDs without increasing complexity—just ensure enough power.

                   Impressive: A wave of changing colors can more strongly convey the “mood” than a single LED.

                 Considerations:
                   Power Supply: Larger strips at full brightness can draw significant current. Use an appropriate

                    5V supply and common ground.
                   Heat Management: Lots of LEDs at high brightness can produce heat.
                   Programming: More  advanced  animation  logic  can be  used  to  truly  enhance  the  user

                    experience.
                 Testing RGB LED Functionality

                    Write a basic Arduino program to turn LEDs ON/OFF.
                    Ensure the LED strip lights up properly.


                 Coding the Mood Lamp using AI Blocks for Emotion Recognition
                 You will use AI blocks to:
                    Detect facial emotions.
                    Send commands to Arduino to control LED colors.




































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