Download Bluetooth Commands - Multi

Chapter 2 – AT Commands
MD Put Device into Data Mode
This command forces the device into Data Mode. In order for this to have an effect the device has to be
CONNECTED.
Format:
ATMD
Return Parameters: If successful an “OK” is returned, or nothing will be returned if already
in data or fast data mode, and connected. A “NO CARRIER” occurs
when the Bluetooth connection has been lost.
EXAMPLE:
TYPE:
ATMD<cr>
REPLY:
<cr_lf>OK<cr_lf>
OR
<cr_lf>NO CARRIER<cr_lf>
MF Put Device into Fast Data Mode
This command forces the radio into Fast Data Mode on channel 00 only. In order for this to have an
effect, the device has to be CONNECTED. Once in Fast Data Mode, all commands are treated as
data. Ways to get out of this mode are to reset power on the radio or strobe PIO(4) while connected.
Format:
ATMF
Return Parameters: If successful an “OK” is returned, or nothing will be returned if already
in data or fast data mode, and connected. A “NO CARRIER” occurs
when the Bluetooth connection has been lost.
EXAMPLE:
TYPE:
ATMF<cr>
REPLY:
<cr_lf>OK<cr_lf>
OR
<cr_lf>ERROR<cr_lf>
OR
<cr_lf>NO CARRIER<cr_lf>
Note: Strobe PIO(4) >5ms to take the device out of fast data into command mode and
maintain the Bluetooth RF connection. If not RF connected, the device will be placed in
command mode.
Utilities – Cancel Command
UCL Cancel
The UCL command tells the radio to cancel inquiry or connect request commands and then place the
radio in Idle Mode. This command can come in handy for a quick exit from commands like inquiry
mode if there are no devices in the area and you do not want to wait for an automatic timeout. You
can not issue a cancel command while RF connected.
This command can also be used to break out of the auto-master connect mode. If executed while
connected in this mode, the radio will disconnect and enter idle mode instead of attempting to
connect again.
Format:
ATUCL
EXAMPLE:
TYPE:
ATUCL<cr>
REPLY:
<cr_lf>OK<cr_lf>
OR
<cr_lf>ERROR<cr_lf>
Multi-Tech Systems, Inc. SocketWireless Bluetooth AT Commands (S000360H)
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