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Power control

docs/pyboard/tutorial/power_ctrl.rst

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Power control

:meth:pyb.wfi is used to reduce power consumption while waiting for an event such as an interrupt. You would use it in the following situation::

while True:
    do_some_processing()
    pyb.wfi()

Control the frequency using :meth:pyb.freq::

pyb.freq(30000000) # set CPU frequency to 30MHz