diff options
Diffstat (limited to 'klippy')
| -rw-r--r-- | klippy/heater.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/klippy/heater.py b/klippy/heater.py index 445f868b..c666ddec 100644 --- a/klippy/heater.py +++ b/klippy/heater.py @@ -35,6 +35,7 @@ class Thermistor: self.c2 = (inv_t12 - self.c3 * ln3_r12) / ln_r12 self.c1 = inv_t1 - self.c2 * ln_r1 - self.c3 * ln3_r1 def calc_temp(self, adc): + adc = max(.00001, min(.99999, adc)) r = self.pullup * adc / (1.0 - adc) ln_r = math.log(r) inv_t = self.c1 + self.c2 * ln_r + self.c3 * ln_r**3 |