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use event instead of emit #280

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use event instead of emit #280

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12 changes: 8 additions & 4 deletions docs/tildagon-apps/reference/badge-hardware.md
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Original file line number Diff line number Diff line change
Expand Up @@ -590,12 +590,16 @@ from system.hexpansion.events import \
HexpansionRemovalEvent, HexpansionInsertionEvent
```

Then `emit()` the event as following:
Then attach a function to the event as following:

```python
eventbus.emit(
events.RequestChargeEvent(events.PowerEvent("Charge Cycle change"))
)
class ChargeApp(app.App):
def __init__(self):
eventbus.on(events.RequestChargeEvent, self._handle_charge_event, self)

def _handle_charge_event(self, event: RequestChargeEvent):
# do something
return None
```

## I2C
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