def run(self):
p = float(self.P)
i = float(self.I)
d = float(self.D)
pmax = int(self.Pmax)
ts = 5
print((p, i, d, pmax))
pid = PID(ts, p, i, d, pmax)
while self.is_running():
heat_percent = pid.calc(self.get_sensor_value(), self.get_target_temp())
if heat_percent == 0:
self.actor_power(heat_percent)
self.heater_off()
cbpi.log_action("PIDHendi OFF {}")
else:
self.actor_power(heat_percent)
self.heater_on(power=heat_percent)
cbpi.log_action("PIDHendi calling heater_on(power={})".format(heat_percent))
self.sleep(ts)
self.heater_off()
def on(self, power=None):
HendiControl.stopped = False
if HendiControl.pwm is None:
if HendiControl.freq is None:
HendiControl.freq = 100
HendiControl.pwm = GPIO.PWM(int(self.power_pin), int(self.freq))
HendiControl.pwm.start(int(HendiControl.power))
if(0 == HendiControl.power):
GPIO.output(int(self.onoff_pin), 0)
else:
GPIO.output(int(self.onoff_pin), 1)
HendiControl.pwm.start(1)
HendiControl.pwm.ChangeDutyCycle(int(HendiControl.power))
cbpi.log_action("ON, Set power {}".format(HendiControl.power))
def init_step(self, step):
cbpi.log_action("Start Step %s" % step.name)
type_cfg = cbpi.cache.get("step_types").get(step.type)
if type_cfg is None:
# if type not found
return
# copy config to stepstate
# init step
cfg = step.config.copy()
cfg.update(dict(name=step.name, api=cbpi, id=step.id, timer_end=None, managed_fields=get_manged_fields_as_array(type_cfg)))
instance = type_cfg.get("class")(**cfg)
instance.init()
# set step instance to ache
cbpi.cache["active_step"] = instance
def start(self):
active = Step.get_by_state("A")
inactive = Step.get_by_state('I')
if (active is not None):
active.state = 'D'
active.end = int(time.time())
self.stop_step()
Step.update(**active.__dict__)
if (inactive is not None):
self.init_step(inactive)
inactive.state = 'A'
inactive.stepstate = inactive.config
inactive.start = int(time.time())
Step.update(**inactive.__dict__)
else:
cbpi.log_action("Brewing Finished")
cbpi.notify("Brewing Finished", "You are done!", timeout=None)
cbpi.emit("UPDATE_ALL_STEPS", Step.get_all())
return ('', 204)
def off(self):
cbpi.log_action("off")
self.stopped = True
self.pwm.ChangeDutyCycle(0)
self.pwm.stop()
GPIO.output(int(self.onoff_pin), 0)
def set_power(self, power):
HendiControl.power = min(int(power), int(self.Pmax))
cbpi.log_action("Set power {}".format(HendiControl.power))
self.pwm.ChangeDutyCycle(HendiControl.power)