46 lines
1.0 KiB
Python
46 lines
1.0 KiB
Python
"""
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switch.py
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=========
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Light up some leds when the USR switch on the pyboard is pressed.
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Example Usage::
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Micro Python v1.0.1 on 2014-05-12; PYBv1.0 with STM32F405RG
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Type "help()" for more information.
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>>> import switch
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>>> switch.run_loop()
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Loop started.
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Press Ctrl+C to break out of the loop.
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"""
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import pyb
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switch = pyb.Switch()
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red_led = pyb.LED(1)
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green_led = pyb.LED(2)
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orange_led = pyb.LED(3)
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blue_led = pyb.LED(4)
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all_leds = (red_led, green_led, orange_led, blue_led)
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def run_loop(leds=all_leds):
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"""
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Start the loop.
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:param `leds`: Which LEDs to light up upon switch press.
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:type `leds`: sequence of LED objects
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"""
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print('Loop started.\nPress Ctrl+C to break out of the loop.')
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while 1:
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try:
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if switch():
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[led.on() for led in leds]
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else:
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[led.off() for led in leds]
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except OSError: # VCPInterrupt # Ctrl+C in interpreter mode.
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break
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if __name__ == '__main__':
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run_loop()
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