code: def readTempC(self):
          
          v = self._read32()
          # Check for error reading value.
          if v & 0x7:
              return float('NaN')
          # Check if signed bit is set.
          if v & 0x80000000:
              # Negative value, take 2's compliment. Compute this with subtraction
              # because python is a little odd about handling signed/unsigned.
              v >>= 18
              v -= 16384
          else:
              # Positive value, just shift the bits to get the value.
              v >>= 18
          # Scale by 0.25 degrees C per bit and return value.
          return v * 0.25
docs: Return the thermocouple temperature value in degrees celsius.