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- builtins.object
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- Dispenser
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- FakeDispenser
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class Dispenser(builtins.object) |
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Dispenser(control_pin: int, ready_pin: int)
This class dispenses tickets and manages the state of the
the DL-1275 ticket dispenser. Dispensing functions blocks
until dispensing is complete, but dispensing is rapid and
the caller is informed whether dispensing was successful. |
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Methods defined here:
- __del__(self)
- __init__(self, control_pin: int, ready_pin: int)
Create a ticket dispenser connected to a DL-1275 via the
Devious Fish dispenser controller.
• control_pin: The GPIO output pin # to which !DISPENSE is connected.
• ready_pin: The GPIO input pin # to which READY is connected.
- dispense(self, count: int) -> int
Dispense tickets.
• count: The number of tickets to dispense.
Return value: Number of tickets actually dispensed.
- empty(self) -> bool
Check if the dispenser was empty at last use.
- jammed(self) -> bool
Check if the dispenser was jammed at last use.
- ready(self) -> bool
Query the dispenser controller's READY pin.
Return value: True if the dispenser sees a notch.
- start(self) -> None
Send a start pulse to the dispenser controller.
The pulse is long enough to ensure the dispenser gets past
the inter-ticket notch.
Afterward, return to floating so we don't bias the circuit,
so it can turn itself off.
- stop(self) -> None
Send a stop pulse to the dispenser controller,
then return the output to floating.
Static methods defined here:
- fromConfig(config: dict[str, int] | None)
Create a ticket dispenser instance from config information.
If config info is None, returns a fake ticket dispenser
instance that will pretend it is dispensing successfully.
For a real dispenser, the config dictionary requires:
• dispense: The !DISPENSE GPIO channel number
• ready: The READY GPIO channel number
Data descriptors defined here:
- __dict__
dictionary for instance variables (if defined)
- __weakref__
list of weak references to the object (if defined)
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class FakeDispenser(Dispenser) |
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A pretend ticket dispenser, for systems without one.
Acts like it's dispensing. |
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- Method resolution order:
- FakeDispenser
- Dispenser
- builtins.object
Methods defined here:
- __init__(self)
Create a ticket dispenser connected to a DL-1275 via the
Devious Fish dispenser controller.
• control_pin: The GPIO output pin # to which !DISPENSE is connected.
• ready_pin: The GPIO input pin # to which READY is connected.
- dispense(self, count: int) -> int
Simulates a dispensing delay, then returns success.
- empty(self) -> bool
The fake dispenser is never empty.
- jammed(self) -> bool
The fake dispenser never jams.
- ready(self) -> bool
The fake dispenser is always ready.
- start(self) -> None
A no-op for the fake dispenser.
- stop(self) -> None
A no-op for the fake dispenser.
Methods inherited from Dispenser:
- __del__(self)
Static methods inherited from Dispenser:
- fromConfig(config: dict[str, int] | None)
Create a ticket dispenser instance from config information.
If config info is None, returns a fake ticket dispenser
instance that will pretend it is dispensing successfully.
For a real dispenser, the config dictionary requires:
• dispense: The !DISPENSE GPIO channel number
• ready: The READY GPIO channel number
Data descriptors inherited from Dispenser:
- __dict__
dictionary for instance variables (if defined)
- __weakref__
list of weak references to the object (if defined)
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