Files
brewpi/tasks/sud.py
T
jensandClaude Sonnet 4.6 b33f89a569 Adapt Sud/SudTask/demo to the new flat heat/hold schedule schema
sude/sud_0010.json moved from a list of combined ramp+hold+wait
"Rasten" with global stirrer constants to a flat "schedule" list of
explicit {"type": "heat"|"hold", ...} steps, each carrying its own
stirrer_speed/stirrer_time_on/stirrer_time_off and an optional
user_wait_for_continue (+ user_message).

- components/sud.py: Sud now tracks the current `step` instead of
  `rast`; "heat" steps enter RAMPING (advanced externally via
  temp_reached()), "hold" steps enter HOLDING and count down
  `duration` minutes (0 if omitted). Either step type can pause in
  WAIT_USER via user_wait_for_continue, surfaced through the new
  user_message attribute.
- tasks/sud.py: SudTask only pushes theta_soll/heatrate_soll on
  "heat" steps, converts each step's stirrer_time_on/off into a
  duty_cycle/cycle_time on every step change (replacing the old
  state-based RAMPING/HOLDING stirrer switching), and broadcasts
  user_message changes. Stirring is now fully schedule-driven instead
  of implicitly stopped on WAIT_USER/DONE (DONE still stops it, since
  there's no step left to read settings from).
- scripts/demos/sud/demo_sud.py: mirrors the same step-driven wiring.
- README's Mash schedules section rewritten for the new schema.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-19 19:09:43 +02:00

95 lines
3.0 KiB
Python

import asyncio
from tasks import ATask
from ws.message import MsgIo
from utils.value import ChangedFloat
from components import APid, AStirrer
from components.sud import Sud, SudState
# How close theta_ist needs to be to theta_soll_set to count as "reached".
TEMP_REACHED_TOLERANCE = 0.2
class SudTask(ATask):
def __init__(self, sud: Sud, tc: APid, stirrer: AStirrer, interval, msg_handler: MsgIo):
ATask.__init__(self, interval)
self.sud = sud
self.tc = tc
self.stirrer = stirrer
self.msg_handler = msg_handler
msg_handler.set_recv_handler(self.recv)
def apply_stirrer(self, step):
speed = step.get('stirrer_speed', 0)
on = step.get('stirrer_time_on', 0)
off = step.get('stirrer_time_off', 0)
cycle = on + off
if cycle > 0:
duty = on / cycle
else:
cycle = 1.0
duty = 1.0 if speed > 0 else 0.0
self.stirrer.set_cycle_time(cycle)
self.stirrer.set_duty_cycle(duty)
self.stirrer.set_speed(speed)
def on_step_changed(self, step):
if step is not None:
if step['type'] == 'heat':
self.tc.set_theta_soll(step['temp'])
self.tc.set_heatrate_soll(step['rate'])
self.apply_stirrer(step)
asyncio.create_task(self.send({'Step': {
'Index': self.sud.index,
'Type': step['type'] if step else None,
'Descr': step.get('descr') if step else None,
'Temp': step.get('temp') if step else None,
'Rate': step.get('rate') if step else None,
'Duration': step.get('duration') if step else None,
'WaitForUser': step.get('user_wait_for_continue', False) if step else None,
}}))
def on_state_changed(self, value):
asyncio.create_task(self.send({'State': str(value)}))
if value == SudState.DONE:
self.stirrer.set_duty_cycle(1.0)
self.stirrer.set_speed(0)
def on_user_message_changed(self, value):
asyncio.create_task(self.send({'UserMessage': value}))
def on_hold_remaining_changed(self, value):
asyncio.create_task(self.send({'HoldRemaining': value}))
async def recv(self, data):
for pair in data.items():
if 'Start' in pair[0]:
self.sud.start()
elif 'Confirm' in pair[0]:
self.sud.confirm()
async def send(self, data):
await self.msg_handler.send(data)
async def on_process(self):
print("{}: Started with interval {} s".format(self.msg_handler.get_key(), self.interval))
self.sud.set_on_changed('step', self.on_step_changed)
self.sud.set_on_changed('state', self.on_state_changed)
self.sud.set_on_changed('user_message', self.on_user_message_changed)
self.sud.set_on_changed('hold_remaining', ChangedFloat(self.on_hold_remaining_changed, prec=0).set)
asyncio.create_task(self.send({'Name': self.sud.name, 'Description': self.sud.description}))
while True:
if self.sud.state == SudState.RAMPING:
# Compare against the controller's own live setpoint/measurement
# rather than its state machine, which can still read HOLD from
# the previous step for one tick after a new target is pushed.
if abs(self.tc.get_theta_ist() - self.tc.get_theta_soll_set()) < TEMP_REACHED_TOLERANCE:
self.sud.temp_reached()
self.sud.tick(self.interval)
await asyncio.sleep(self.interval)