jepler/Adafruit_CircuitPython_ADS1x15
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Change assertions to ValueErrors

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#15
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iBug ♦ 2018-10-04 22:40:12 +08:00 committed by GitHub
parent 7f16dc9714
commit cdd12b839f
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1 changed files with 6 additions and 3 deletions
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9
adafruit_ads1x15/differential.py
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@ -51,7 +51,8 @@ class ADS1x15_Differential(ADS1x15):
- 2 = Channel 1 minus channel 3
- 3 = Channel 2 minus channel 3
"""
assert 0 <= differential <= 3, 'Differential must be a value within 0-3!'
if not 0 <= differential <= 3:
raise ValueError('Differential must be a value within 0-3!')
# Perform a single shot read using the provided differential value
# as the mux value (which will enable differential mode).
return self._read(differential, gain, data_rate, ADS1X15_CONFIG_MODE_SINGLE)
@ -64,7 +65,8 @@ class ADS1x15_Differential(ADS1x15):
- 2 = Channel 1 minus channel 3
- 3 = Channel 2 minus channel 3
"""
assert 0 <= differential <= 3, 'Differential must be a value within 0-3!'
if not 0 <= differential <= 3:
raise ValueError('Differential must be a value within 0-3!')
raw = self.read_adc_difference(differential, gain, data_rate)
volts = raw * (ADS1X15_PGA_RANGE[gain] / (2**(self.bits-1) - 1))
return volts
@ -80,7 +82,8 @@ class ADS1x15_Differential(ADS1x15):
function continuously to read the most recent conversion result. Call
stop_adc() to stop conversions.
"""
assert 0 <= differential <= 3, 'Differential must be a value within 0-3!'
if not 0 <= differential <= 3:
raise ValueError('Differential must be a value within 0-3!')
# Perform a single shot read using the provided differential value
# as the mux value (which will enable differential mode).
return self._read(differential, gain, data_rate, ADS1X15_CONFIG_MODE_CONTINUOUS)