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Diffstat (limited to 'klippy/extras/thermistor.py')
| -rw-r--r-- | klippy/extras/thermistor.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/klippy/extras/thermistor.py b/klippy/extras/thermistor.py index c39ae66e..20c87754 100644 --- a/klippy/extras/thermistor.py +++ b/klippy/extras/thermistor.py @@ -75,6 +75,8 @@ class Thermistor: temp = 1.0/inv_t + KELVIN_TO_CELCIUS self.temperature_callback(read_time + SAMPLE_COUNT * SAMPLE_TIME, temp) def calc_adc(self, temp): + if temp <= KELVIN_TO_CELCIUS: + return 1. inv_t = 1. / (temp - KELVIN_TO_CELCIUS) if self.c3: # Solve for ln_r using Cardano's formula |