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fan: add enable_pin option (#5732)

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Signed-off-by: Lasse Dalegaard <dalegaard@gmail.com>
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dalegaard 2022-09-03 18:23:55 +02:00 • committed by GitHub
parent 6ba0242900
commit 9f8f3cd77d
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2 changed files with 21 additions and 0 deletions
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11
klippy/extras/fan.py
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@ -30,6 +30,12 @@ class Fan:
shutdown_power = max(0., min(self.max_power, shutdown_speed))
self.mcu_fan.setup_start_value(0., shutdown_power)
self.enable_pin = None
enable_pin = config.get('enable_pin', None)
if enable_pin is not None:
self.enable_pin = ppins.setup_pin('digital_out', enable_pin)
self.enable_pin.setup_max_duration(0.)
# Setup tachometer
self.tachometer = FanTachometer(config)
@ -46,6 +52,11 @@ class Fan:
if value == self.last_fan_value:
return
print_time = max(self.last_fan_time + FAN_MIN_TIME, print_time)
if self.enable_pin:
if value > 0 and self.last_fan_value == 0:
self.enable_pin.set_digital(print_time, 1)
elif value == 0 and self.last_fan_value > 0:
self.enable_pin.set_digital(print_time, 0)
if (value and value < self.max_power and self.kick_start_time
and (not self.last_fan_value or value - self.last_fan_value > .5)):
# Run fan at full speed for specified kick_start_time