Example: 50-OpenMV-Boards/50-IMXRT-Boards/50-Board-Control/led_control_pwm.py

# 本作品采用MIT许可证授权。
# 版权所有 (c) 2013-2024 OpenMV LLC。保留所有权利。
# https://github.com/openmv/openmv/blob/master/LICENSE
#
# LED 控制示例
#
# 此示例展示了如何控制您的OpenMV Cam内置LED。

import time
from machine import PWM

r = PWM("LED_RED", freq=200, duty_u16=65535)
b = PWM("LED_BLUE", freq=200, duty_u16=65535)
g = PWM("LED_GREEN", freq=200, duty_u16=65535)


while True:
    for i in range(0, 65536, 256):
        r.duty_u16(65535 - i)
        time.sleep_ms(10)
    r.duty_u16(65535)

    for i in range(0, 65536, 256):
        g.duty_u16(65535 - i)
        time.sleep_ms(10)
    g.duty_u16(65535)

    for i in range(0, 65536, 256):
        b.duty_u16(65535 - i)
        time.sleep_ms(10)
    b.duty_u16(65535)