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spi_temperature: Simplify and comment MAX31865 temperature calculations

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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Kevin O'Connor 2020-09-02 09:37:13 -04:00
parent 37d7742468
commit c69527e2b0
2 changed files with 22 additions and 19 deletions
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klippy/extras/adc_temperature.py
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@ -262,7 +262,7 @@ AD8497 = [
]
def calc_pt100(base=100.):
# Calc PT100/PT1000 temperature/resistance pairs using formula
# Calc PT100/PT1000 resistances using Callendar-Van Dusen formula
A, B = (3.9083e-3, -5.775e-7)
return [(float(t), base * (1. + A*t + B*t*t)) for t in range(0, 500, 10)]