Send a PlayTone message.
Send the PlayTone direct command on the specified connection slot. Use RemoteConnectionIdle to determine when this write request is completed.
|conn||The connection slot (0..4). Connections 0 through 3 are for bluetooth connections. Connection 4 refers to the RS485 hi-speed port. See Remote connection constants. |
|frequency||The frequency of the tone. |
|duration||The duration of the tone. |
- A char value indicating whether the function call succeeded or not.