Global Counters

A global counter ends an infinite loop when 5 Port1In events occur. Port1In events acquired in the first state are deliberately not counted.

Python

from bpod_core.fsm import StateMachine

fsm = StateMachine()

fsm.set_global_counter(
    index=1,
    event='Port1High',
    threshold=5,
)

fsm.add_state(
    name='InitialDelay',
    timer=2,
    transitions={'Tup': 'ResetGlobalCounter'},
    actions={'PWM2': 255},
)
fsm.add_state(
    name='ResetGlobalCounter',
    transitions={'Tup': 'Port1Light'},
    actions={'GlobalCounterReset': 1},
)
fsm.add_state(
    name='Port1Light',
    timer=0.25,
    transitions={
        'Tup': 'Port3Light',
        'GlobalCounter1_End': '>exit',
    },
    actions={'PWM1': 255},
)
fsm.add_state(
    name='Port3Light',
    timer=0.25,
    transitions={
        'Tup': 'Port1Light',
        'GlobalCounter1_End': '>exit',
    },
    actions={'PWM3': 255},
)

JSON

{
  "states": {
    "InitialDelay": {
      "timer": 2.0,
      "transitions": {
        "Tup": "ResetGlobalCounter"
      },
      "actions": {
        "PWM2": 255
      }
    },
    "ResetGlobalCounter": {
      "transitions": {
        "Tup": "Port1Light"
      },
      "actions": {
        "GlobalCounterReset": 1
      }
    },
    "Port1Light": {
      "timer": 0.25,
      "transitions": {
        "Tup": "Port3Light",
        "GlobalCounter1_End": ">exit"
      },
      "actions": {
        "PWM1": 255
      }
    },
    "Port3Light": {
      "timer": 0.25,
      "transitions": {
        "Tup": "Port1Light",
        "GlobalCounter1_End": ">exit"
      },
      "actions": {
        "PWM3": 255
      }
    }
  },
  "global_counters": {
    "1": {
      "event": "Port1High",
      "threshold": 5
    }
  }
}

YAML

states:
  InitialDelay:
    timer: 2.0
    transitions:
      Tup: ResetGlobalCounter
    actions:
      PWM2: 255
  ResetGlobalCounter:
    transitions:
      Tup: Port1Light
    actions:
      GlobalCounterReset: 1
  Port1Light:
    timer: 0.25
    transitions:
      Tup: Port3Light
      GlobalCounter1_End: '>exit'
    actions:
      PWM1: 255
  Port3Light:
    timer: 0.25
    transitions:
      Tup: Port1Light
      GlobalCounter1_End: '>exit'
    actions:
      PWM3: 255
global_counters:
  1:
    event: Port1High
    threshold: 5