2.4GH
Z
B
LUETOOTH
T
RANSCEIVER
M
ODULE
P
ROGRAMMING
G
UIDE
Commands, Responses and Events
When the BRM is set to ‘Enhanced ‘ mode several commands are available to the Host system.
BRM01
General Rules
Except when sending or receiving payload data, or stated otherwise, commands, responses and events
are constructed using ASCII codes – i.e.. In the range from 0x00 to 0x7F.
Commands always result in a response and new commands must not be sent until a response to the
previous command has been received.
Responses consist of at least 1 Command Echo Byte and 2 ASCII Coded Status Bytes.
Status “00” = success
Return parameters are not sent for non “00” responses
Events occur from time to time and indicate connection failures and other critical events. Events always
comprise at least 3 bytes. The first byte indicates the type of event and the second and third bytes
indicate the status.
Summary
The table below provides a summary of the commands supported in V0.29 Firmware.
Commands
Name
Add Device To Index
Connect To Device
Disconnect Device
GPIO
Code
“A”
“C”
“D”
“G”
Parameter(s)
Address (12), ID (2)
ID (2)
---------
Direction (2)
Function (2)
Initialise (2)
ID (2), Mask (2)
ID (2), Null (2)
ID (2), Pin (2)
ID (2)
Name (16)<CR>
---------
---------
ID (2)
---------
---------
ID (2)
Description
Adds a device to the local index
Requests a data connection to a BRM
Disconnects the currently connected remote BRM
Sets the GPIO pin functions (In/Out/ADC, Initial
state)
Outputs a GPIO bit mask to the GPIO pins
Inputs a byte which is a bit mask of the GPIO pins
Performs an ADC measurement on a GPIO pin
Gets the device address stored in the local BRM
Sets a new local name for the local BRM
Gets the local BRM’s name
Gets the local BRM’s address
Requests the name from a remote BRM
Performs a power-on-reset
Requests the link quality for a connection
Requests a voice+data connection to a device
GPIO Output
GPIO Input
GPIO Measure
Device Address
Set Local Name
Local Name
Local Address
Remote Device Name
Reset
Quality
Connect Voice Device
“>”
“<”
“$”
“I”
“l”
“L”
“K”
“N”
“R”
“Q”
“V”
Sleep
“Z”
---------
Sets BRM into low power sleep mode
DS361-3 Dec 03
©2003 Reg. No. 227 4001, England
Page 4
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