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DigiROM type display + battery monitor (#171)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| ''' | ||
| status.py | ||
| Handles status monitoring. | ||
| ''' | ||
|
|
||
| import analogio | ||
|
|
||
| class BatteryMonitor: | ||
| ''' | ||
| Handles the battery monitor. | ||
| ''' | ||
| def __init__(self, pin, empty, full, charging): | ||
| self._monitor = analogio.AnalogIn(pin) | ||
| self._empty = empty | ||
| self._full = full | ||
| self._charging = charging | ||
| def ratio(self): | ||
| ''' | ||
| Return battery fullness 0-1, or None if charging. | ||
| ''' | ||
| reading = self._monitor.value | ||
| if reading >= self._charging: | ||
| return None | ||
| if reading < self._empty: | ||
| reading = self._empty | ||
| if reading > self._full: | ||
| reading = self._full | ||
| return (reading - self._empty) / (self._full - self._empty) | ||
| def meter(self): | ||
| ''' | ||
| Return text representing fullness, or a message if charging. | ||
| ''' | ||
| sections = 5 | ||
| ratio = self.ratio() | ||
| if ratio is None: | ||
| return "(On USB)" | ||
| filled = (int)(sections * ratio + 0.5) | ||
| unfilled = sections - filled | ||
| return "[" + "=" * filled + " " * unfilled + "]" | ||
|
|
||
| class StatusDisplay: | ||
| ''' | ||
| Handles status display for WiFi/Serial/Punchbag. | ||
| ''' | ||
| def __init__(self, ui, battery_monitor): #pylint:disable=invalid-name | ||
| self._ui = ui | ||
| self._battery_monitor = battery_monitor | ||
| self._mode = "" | ||
| self._line2 = "" | ||
| self._status = "" | ||
| self._show_battery = True | ||
| def change(self, mode, line2, status, show_battery=True): | ||
| ''' | ||
| Set mode, line2 and status and redraw. | ||
| ''' | ||
| self._mode = mode | ||
| self._line2 = line2 | ||
| self._show_battery = show_battery | ||
| self.do(status) | ||
| def do(self, status): #pylint:disable=invalid-name | ||
| ''' | ||
| Set status and redraw trying digirom then string. | ||
| ''' | ||
| try: | ||
| guide = "wait for start" if status.turn == 1 else "push vpet button" | ||
| status = f"{status.signal_type}{status.turn}: {guide}" | ||
| except AttributeError: | ||
| pass | ||
| self._status = status | ||
| self.redraw() | ||
| def redraw(self): | ||
| ''' | ||
| Redraw screen. | ||
| ''' | ||
| rows = [ | ||
| self._mode, | ||
| self._line2, | ||
| self._status, | ||
| ] | ||
| if self._show_battery and self._battery_monitor is not None: | ||
| rows[0] += " " + self._battery_monitor.meter() | ||
| self._ui.display_rows(rows) |