Specifications

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VER – Get Version
This sentence retrieves version information from the multiplexer.
Format: $PSMDVER
The multiplexer responds with the following version sentence:
$PSMDVER,3.17.1,MiniPlex-2S,10025943,8040*hh<CR><LF>
3.17.1: firmware version number
MiniPlex-2S: multiplexer name
10025943: serial number
8040: Multiplexer capabilities. This is a 4 digit, 16-bit field represented as a hexadecimal
number. Each bit identifies a capability of the multiplexer. The following bits are
defined:
1-0: Host interface type, 0 = serial, 1 = USB, 2 = Ethernet, 3 = USB & WiFi
2: Bluetooth module installed
6: Firmware update supported
15: 3
rd
generation multiplexer
hh: checksum
WI – Wireless control
This sentence controls the wireless module on the multiplexer (WiFi or Bluetooth). This sentence
always results in a response sentence from the multiplexer. This response reflects the response of
the wireless module or the result of the operation.
Format: $PSMDWI,x[,a,b..][*hh]<CR><LF
x: Sub-command. See below
a,b..: Optional parameters required by a subcommand
Response: $PSMDWI,message
The following sub-commands are defined:
0..6: Set the baud rate of communication port of the multiplexer that is connected to the wireless
module. A single digit in the range of ‘0’ to ‘6’ sets the speed according to the table below:
0: 4800 Bd
1: 9600 Bd
2: 19200 Bd
3: 38400 Bd
4: 57600 Bd
5: 115200 Bd
6: 230400 Bd
This command is used to be able to talk to an un-initialized module at its default speeds of
9600 Bd (value ‘1’) or when a firmware update requires a new speed setting.
This speed setting is temporary: after a power cycle the speed is reset to its normal
operational value, determined by the firmware of the multiplexer.
A: Configure the WiFi module with the multiplexer default access point settings:
SSID: MiniPlex-2Wi:xx:yy
Channel: 1
IP address: 10.0.0.1
Network mask: 255.255.255.0
TCP port: 10110
xx:yy are the last two bytes of the MAC address of the WiFi module.
B: Configure the Bluetooth module with the multiplexer default settings
C: Set the wireless module to Command Mode. This enables sending of commands directly to
the wireless module using the $PSMDWI sentence. See section Command Mode for more
details. Sending $PSMDWI without any parameters exits Command Mode.
When command mode is enabled, all NMEA data from In1..4 is blocked.
E: Erase the trusted (paired) devices list in the Bluetooth module.
M: Return the MAC address of the wireless module.