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Send a GetDeviceInfo message.

This method sends a GetDeviceInfo system command to the device on the specified connection.

Warning: This function requires the enhanced NBC/NXC firmware version 1.28+.

Parameters

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.
name	The name of the remote device.
btaddr	The bluetooth address of the remote device.
btsignal	The signal strength of each connection on the remote device.
freemem	The number of bytes of free flash memory on the remote device.

Returns: A char value indicating whether the function call succeeded or not.