1. Light Up RGB LED Experiment

Routine Code

from maix import GPIO
from modules import ws2812
import time

ws2812_obj = ws2812(6, 1)
colors = [(255, 0, 0), (0, 255, 0), (0, 0, 255)]

while True:
    for color in colors:
        ws2812_obj.set_led(0, color)
        ws2812_obj.display()
        time.sleep_ms(500)

Experiment Preparation

• 1. Connect the K210 to your computer via USB.
• 2. Open CanMV IDE and run the routine code above.

Experiment Results

• 1. After running, the RGB LED on the side of the K210 cycles through blue, green, and red every 500 ms.

Routine Code Explanation

• 1. Import the modules required to run the routine.

from maix import GPIO
from modules import ws2812
import time

• 2. Create a WS2812 object to control addressable RGB LEDs. Parameters (6, 1): pin 6 is the RGB LED pin; 1 means one WS2812 LED is controlled.

ws2812_obj = ws2812(6, 1)

• 3. Define a list of three colors: red, green, and blue. Each color is a tuple of three RGB channel values.

colors = [(255, 0, 0), (0, 255, 0), (0, 0, 255)]

• 4. Enter an infinite loop.

while True:

• 5. Iterate over each color in the colors list.

for color in colors:

• 6. Set the color of the WS2812 LED at index 0 to the current color. Index 0 is used because only one LED is controlled.

ws2812_obj.set_led(0, color)

• 7. Call ws2812_obj.display() to apply the color change.

ws2812_obj.display()

• 8. time.sleep_ms(500) pauses for 500 milliseconds so each color is visible before switching.

time.sleep_ms(500)