def start_pid(value):
auto = control.latest('log.auto_mode')
if not auto:
# Start PID by changing setpoint to current temperature
setpoint = control.latest('log.temperature')
control.publish('set.setpoint', setpoint)
return '{0} °C/minute'.format(value)
def update_pid(value):
auto = control.latest('log.auto_mode')
if auto:
# Already running PID, so increment setpoint by given degC/minute
setpoint = control.latest(
'log.setpoint') + value * UPDATE_INTERVAL / 60
control.publish('set.setpoint', setpoint)
return '{0} °C/minute'.format(value)
def stopwatch():
# Get last stopwatch reset
reset_time = control.latest('log.stopwatch')
elapsed = time.time() - reset_time if reset_time else 0
# Return stopwatch value
return 'Stopwatch: {minutes:02d}:{seconds:02d}'.format(
minutes=int(elapsed / 60), seconds=int(elapsed % 60))
def badge_auto(invert=False):
# Use this to change icon colours when in manual/PID mode
auto = control.latest('log.auto_mode')
class_name = 'badge badge-pill badge-'
if auto:
return class_name + ('secondary' if invert else 'success')
else:
return class_name + ('success' if invert else 'secondary')
def table():
data = control.latest(
['log.temperature', 'log.temperature_roc', 'log.heat', 'log.setpoint'])
return [
html.Tr([
html.Td(key.replace('log.', '')),
html.Td('{0:.1f}'.format(value))
]) for key, value in data.items()
]