Works at 1000 times speed, a little messy.

.gitignore

@@ -8,3 +8,4 @@ thumbs.db
 #storage/profiles
 #config.py
 .idea/*
+state.json

config.py

@@ -175,7 +175,7 @@ ignore_tc_short_errors = False
 # cleaned up (deleted) by the OS on boot.
 # The state file is written to disk every sensor_time_wait seconds (2s by default)
 # and is written in the same directory as config.py.
-automatic_restarts = True
+automatic_restarts = False
 automatic_restart_window = 15 # max minutes since power outage
 automatic_restart_state_file = os.path.abspath(os.path.join(os.path.dirname( __file__ ),'state.json'))
 

lib/oven.py

@@ -417,7 +417,7 @@ class SimulatedOven(Oven):
         self.R_o_nocool = config.sim_R_o_nocool
         self.R_ho_noair = config.sim_R_ho_noair
         self.R_ho = self.R_ho_noair
-        self.speedup_factor = 10
+        self.speedup_factor = 1000
 
         # set temps to the temp of the surrounding environment
         self.t = self.t_env # deg C temp of oven
@@ -441,6 +441,9 @@ class SimulatedOven(Oven):
 
         self.runtime = runtime_delta.total_seconds() * self.speedup_factor
 
+    def update_target_temp(self):
+        self.target = self.profile.get_target_temperature(self.runtime)
+
     def heating_energy(self,pid):
         # using pid here simulates the element being on for
         # only part of the time_step
@@ -466,7 +469,7 @@ class SimulatedOven(Oven):
     def heat_then_cool(self):
         pid = self.pid.compute(self.target,
                                self.board.temp_sensor.temperature +
-                               config.thermocouple_offset)
+                               config.thermocouple_offset, self.start_time + datetime.timedelta(milliseconds = self.runtime * 1000))
         heat_on = float(self.time_step * pid)
         heat_off = float(self.time_step * (1 - pid))
 
@@ -528,7 +531,7 @@ class RealOven(Oven):
     def heat_then_cool(self):
         pid = self.pid.compute(self.target,
                                self.board.temp_sensor.temperature +
-                               config.thermocouple_offset)
+                               config.thermocouple_offset, datetime.datetime.now())
         heat_on = float(self.time_step * pid)
         heat_off = float(self.time_step * (1 - pid))
 
@@ -610,8 +613,7 @@ class PID():
     # settled on -50 to 50 and then divide by 50 at the end. This results
     # in a larger PID control window and much more accurate control...
     # instead of what used to be binary on/off control.
-    def compute(self, setpoint, ispoint):
+    def compute(self, setpoint, ispoint, now):
-        now = datetime.datetime.now()
         timeDelta = (now - self.lastNow).total_seconds()
 
         window_size = 100

lib/ovenWatcher.py

@@ -36,7 +36,7 @@ class OvenWatcher(threading.Thread):
             self.notify_all(oven_state)
 
             if config.simulate:
-                time.sleep(self.oven.time_step / self.oven.speedup_factor)
+                time.sleep(self.oven.time_step)
             else:
                 time.sleep(self.oven.time_step)