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from pyb import ADC
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from pyb import Pin
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pin = Pin('X22', mode=Pin.IN, pull=Pin.PULL_DOWN)
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adc = ADC('X22')
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print(adc)
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# read single sample
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val = adc.read()
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assert val < 500
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# read into bytearray
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buf = bytearray(50)
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adc.read_timed(buf, 500)
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print(len(buf))
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for i in buf:
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assert i < 500
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# read into arrays with different element sizes
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import array
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ar = array.array('h', 25 * [0])
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adc.read_timed(ar, 500)
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print(len(ar))
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for i in buf:
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assert i < 500
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ar = array.array('i', 30 * [0])
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adc.read_timed(ar, 500)
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print(len(ar))
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for i in buf:
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assert i < 500
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