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pid_calibrate: Fix module import 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2020-04-25 14:49:50 -04:00
parent 17123889f6
commit ced389f4f6
1 changed files with 2 additions and 2 deletions
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4
klippy/extras/pid_calibrate.py
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@ -4,7 +4,7 @@
#
# This file may be distributed under the terms of the GNU GPLv3 license.
import math, logging
import heater
import heaters
class PIDCalibrate:
def __init__(self, config):
@ -120,7 +120,7 @@ class ControlAutoTune:
# Use Ziegler-Nichols method to generate PID parameters
Ti = 0.5 * Tu
Td = 0.125 * Tu
Kp = 0.6 * Ku * heater.PID_PARAM_BASE
Kp = 0.6 * Ku * heaters.PID_PARAM_BASE
Ki = Kp / Ti
Kd = Kp * Td
logging.info("Autotune: raw=%f/%f Ku=%f Tu=%f Kp=%f Ki=%f Kd=%f",