19 lines
489 B
Python
19 lines
489 B
Python
'''
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实验名称：点亮第1个LED
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实验平台：核桃派
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'''
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import time
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# 导入相关模块
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import board
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from digitalio import DigitalInOut, Direction
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# 构建LED对象和初始化
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while True:
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led = DigitalInOut(board.LED) # 定义引脚编号
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led.direction = Direction.OUTPUT # IO为输出
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print("熄灭")
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led.value = 0 # 输出低电平，熄灭板载LED蓝灯
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print("点亮")
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time.sleep(20)
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led.value = 1 # 输出高电平，点亮板载LED蓝灯
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