- added temp offset as argument
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@@ -8,17 +8,16 @@ class TempSensor_max31865(ATemperatureSensor):
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def name(self):
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def name(self):
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return "Max31865"
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return "Max31865"
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def __init__(self):
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def __init__(self, temp_offset=0):
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ATemperatureSensor.__init__(self)
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ATemperatureSensor.__init__(self)
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# Open SPI bus
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# Open SPI bus
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self.spi = spidev.SpiDev()
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self.spi = spidev.SpiDev()
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self.spi.open(0, 0)
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self.spi.open(0, 0)
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self.spi.max_speed_hz = 50000
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self.spi.max_speed_hz = 50000
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self.spi.mode = 0b01
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self.spi.mode = 0b01
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self.temp_correction = -1.2
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self.temp_offset = temp_offset
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self.write_reg(0x00, 0xA3)
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self.write_reg(0x00, 0xA3)
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time.sleep(0.100)
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time.sleep(0.100)
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self.digits = 0
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self.temp = self.temperature()
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self.temp = self.temperature()
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def read_reg(self, addr):
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def read_reg(self, addr):
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@@ -33,13 +32,13 @@ class TempSensor_max31865(ATemperatureSensor):
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msb = self.read_reg(0x01)
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msb = self.read_reg(0x01)
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lsb = self.read_reg(0x02)
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lsb = self.read_reg(0x02)
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if lsb & 0x01 == 0x00:
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if lsb & 0x01 == 0x00:
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self.digits = float(256*msb + lsb)/2
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digits = float(256*msb + lsb)/2
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self.write_reg(0x00, 0xA3)
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self.write_reg(0x00, 0xA3)
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return self.digits
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return digits
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def temperature(self):
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def temperature(self):
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return self.__tempRaw() + self.temp_correction
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return self.__tempRaw() + self.temp_offset
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def __tempRaw(self):
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def __tempRaw(self):
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try:
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try:
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@@ -8,4 +8,4 @@ class TempSensorFactory:
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return TempSensorSim()
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return TempSensorSim()
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elif "31865" in name:
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elif "31865" in name:
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from components.sensor.tempSensor_max31865 import TempSensor_max31865
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from components.sensor.tempSensor_max31865 import TempSensor_max31865
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return TempSensor_max31865()
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return TempSensor_max31865(temp_offset=-1.2)
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