Add a page for MES events.
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ganicke
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docs/device/mes-events.md
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docs/device/mes-events.md
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# MES events
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Events and event values are generated in the Message Event Service (MES). Using MES events allows orderly interactions between the @boardname@ and external devices. These events are sent to and received from other wireless devices paired with the @boardname@ (phone, game pad, etc.).
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The event source IDs represent a device feature category. The event values are actions for, or notifications about a device feature.
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## Raised events
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Events are generated, or _raised_, for by the @boardname@ for a paired device. These are raised using the [raise event](/reference/control/raise-event) function.
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```typescript-ignore
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control.raiseEvent(
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control.eventSourceId(EventBusSource.MES_REMOTE_CONTROL_ID),
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control.eventValueId(EventBusValue.MES_REMOTE_CONTROL_EVT_VOLUMEUP`)
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);
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```
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### Remote control
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Events for using the @boardname@ as a remote control for audio play.
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#### MES_REMOTE_CONTROL_ID
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* `MES_REMOTE_CONTROL_EVT_PLAY`: Play the current track
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* `MES_REMOTE_CONTROL_EVT_PAUSE`: Pause the current play in progress
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* `MES_REMOTE_CONTROL_EVT_STOP`: Stop playing and reset to the beginning of the current track
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* `MES_REMOTE_CONTROL_EVT_NEXTTRACK`: Skip to the next track
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* `MES_REMOTE_CONTROL_EVT_PREVTRACK`: Skip to the previous track
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* `MES_REMOTE_CONTROL_EVT_FORWARD`: Move forward in the current track
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* `MES_REMOTE_CONTROL_EVT_REWIND`: Move backward in the current track
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* `MES_REMOTE_CONTROL_EVT_VOLUMEUP`: Increase the play volume (audio)
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* `MES_REMOTE_CONTROL_EVT_VOLUMEDOWN`: Decrease the play volume (audio)
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### Camera
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Control camera actions on a paired device.
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#### MES_CAMERA_ID
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* `MES_CAMERA_EVT_LAUNCH_PHOTO_MODE`: Turn on or set the camera to _photo_ mode.
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* `MES_CAMERA_EVT_LAUNCH_VIDEO_MODE`: Turn on or set the camera to _video_ mode.
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* `MES_CAMERA_EVT_TAKE_PHOTO`: Capture the picture in the camera view.
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* `MES_CAMERA_EVT_START_VIDEO_CAPTURE`: Begin capturing video (start record)
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* `MES_CAMERA_EVT_STOP_VIDEO_CAPTURE`: End capturing video (stop record)
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* `MES_CAMERA_EVT_STOP_PHOTO_MODE`: Stop photo mode and return to the default mode
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* `MES_CAMERA_EVT_STOP_VIDEO_MODE`: Stop video mode and return to the default mode
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* `MES_CAMERA_EVT_TOGGLE_FRONT_REAR`: Switch from the front camera to rear camera or rear to front
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### Alerts
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Trigger standard alert notifications on a device.
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#### MES_ALERTS_ID
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* `MES_ALERT_EVT_DISPLAY_TOAST`
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* `MES_ALERT_EVT_VIBRATE`
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* `MES_ALERT_EVT_PLAY_SOUND`
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* `MES_ALERT_EVT_PLAY_RINGTONE`
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* `MES_ALERT_EVT_FIND_MY_PHONE`
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* `MES_ALERT_EVT_ALARM1`
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* `MES_ALERT_EVT_ALARM2`
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* `MES_ALERT_EVT_ALARM3`
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* `MES_ALERT_EVT_ALARM4`
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* `MES_ALERT_EVT_ALARM5`
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* `MES_ALERT_EVT_ALARM6`
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## Received events
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Events are received by the @boardname@ from a paired device. You capture these in an [on event](/reference/control/on-event) function.
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```typescript-ignore
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control.onEvent(EventBusSource.MES_DEVICE_INFO_ID, EventBusValue.MES_DEVICE_INCOMING_CALL, () => {
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})
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```
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### Carrier signal strength
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Signal strength to the subscribed carrier service.
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#### MES_SIGNAL_STRENGTH_ID
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* `MES_SIGNAL_STRENGTH_EVT_NO_BAR`: No service available or very low signal strength
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* `MES_SIGNAL_STRENGTH_EVT_ONE_BAR`: Low signal strength
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* `MES_SIGNAL_STRENGTH_EVT_TWO_BAR`: Medium signal strength
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* `MES_SIGNAL_STRENGTH_EVT_THREE_BAR`: High signal strength
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* `MES_SIGNAL_STRENGTH_EVT_FOUR_BAR`: Full signal strength
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### Device information
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Information about the current status of the device
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#### MES_DEVICE_INFO_ID
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* `MES_DEVICE_ORIENTATION_LANDSCAPE`: Display orientation is now in landscape
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* `MES_DEVICE_ORIENTATION_PORTRAIT`: Display orientation is now in portrait
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* `MES_DEVICE_GESTURE_NONE`: No gesture detected for device activation
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* `MES_DEVICE_GESTURE_DEVICE_SHAKEN`: The device was shaken
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* `MES_DEVICE_DISPLAY_OFF`: Device display is now turned off
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* `MES_DEVICE_DISPLAY_ON`: Device display is now turned on
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* `MES_DEVICE_INCOMING_CALL`: Currently receiving an incoming call
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* `MES_DEVICE_INCOMING_MESSAGE`: A message was received (SMS or other messaging app)
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### Game pad contoller
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Button events from a paired game pad.
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#### MES_DPAD_CONTROLLER_ID
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* `MES_DPAD_BUTTON_A_DOWN`: Button **A** pressed
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* `MES_DPAD_BUTTON_A_UP`: Button **A** released
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* `MES_DPAD_BUTTON_B_DOWN`: Button **B** pressed
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* `MES_DPAD_BUTTON_B_UP`: Button **B** released
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* `MES_DPAD_BUTTON_C_DOWN`: Button **C** pressed
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* `MES_DPAD_BUTTON_C_UP`: Button **C** released
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* `MES_DPAD_BUTTON_D_DOWN`: Button **D** pressed
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* `MES_DPAD_BUTTON_D_UP`: Button **D** released
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* `MES_DPAD_BUTTON_1_DOWN`: Button **1** pressed
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* `MES_DPAD_BUTTON_1_UP`: Button **1** released
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* `MES_DPAD_BUTTON_2_DOWN`: Button **2** pressed
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* `MES_DPAD_BUTTON_2_UP`: Button **2** released
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* `MES_DPAD_BUTTON_3_DOWN`: Button **3** pressed
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* `MES_DPAD_BUTTON_3_UP`: Button **3** released
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* `MES_DPAD_BUTTON_4_DOWN`: Button **4** pressed
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* `MES_DPAD_BUTTON_4_UP`: Button **4** released
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## See also
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[raise event](/reference/control/raise-event), [on event](/reference/control/on-event),
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[event value](/reference/control/event-value)
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