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raise error if no thermistor connected

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This commit is contained in:
Nikolay Khabarov
2017-06-24 17:49:14 +03:00
parent 85168778f8
commit bad4a82292
1 changed files with 7 additions and 1 deletions
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cnc/sensors/thermistor.py
+7 -1
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@@ -30,7 +30,11 @@ from __future__ import division
import math import math
import time import time
import ads111x as adc try:
import ads111x as adc
except ImportError:
print("---- ads111x is not detected ----")
adc = None
CELSIUS_TO_KELVIN = 273.15 CELSIUS_TO_KELVIN = 273.15
@@ -53,6 +57,8 @@ def get_temperature(channel):
:param channel: ads111x channel. :param channel: ads111x channel.
:return: temperature in Celsius :return: temperature in Celsius
""" """
if adc is None:
raise IOError("ads111x is not connected")
v = adc.measure(channel) v = adc.measure(channel)
if v >= Vcc: if v >= Vcc:
raise IOError("Thermistor not connected") raise IOError("Thermistor not connected")