# raise alert to Raise an alert on a remote device. ### ~hint The functions in the ``devices`` namespace allow the @boardname@ to communicate with a separate (remote) device, such as a smartphone, over Bluetooth (Smart). The set of supported events will depend on the remote device and the @boardname@ apps available for the remote device. ### ~ ```sig export function raiseAlertTo(event: string) ``` ### Parameters * event - an event identifier ### Examples To tell the connected device to display toast ```blocks devices.raiseAlertTo("display toast") ``` To tell the connected device to vibrate ```blocks devices.raiseAlertTo("vibrate") ``` To tell the connected device to play a sound ```blocks devices.raiseAlertTo("play sound") ``` To tell the connected device to play a ringtone ```blocks devices.raiseAlertTo("play ringtone") ``` To tell the connected device to find my phone ```blocks devices.raiseAlertTo("find my phone") ``` To tell the connected device to ring alarm ```blocks devices.raiseAlertTo("ring alarm") ``` ### See also [tell remote control to](/reference/devices/tell-remote-control-to), [tell camera to](/reference/devices/tell-camera-to) ```package devices ```