R309 AT Commands
©2015 Telegesis (UK) Ltd - 43 - AT Command Manual (Rev 3.09)
+BCASTB – Transmit A Broadcast Of Binary Data
AT+BCASTB:XX,nn
Where nn is the number of hops the message
will travel and XX is the number (in
hexadecimal) of data bytes to be sent.
Note
This command is particularly useful if the data
may contain <CR> and <Backspace>
characters.
Use on
All Devices
> <data being entered>
OK
or ERROR:<errorcode>
After the ‘>’ prompt a number of XX characters
are expected to be entered. <errorcode>
represents the error code explained in section 3.
(In case bit 9 of S10 is set a timeout error is
generated if no character is received for 1
second.)
Parameters
XX ranging from 00 to 52 (hexadecimal)
nn ranging from 00 to 30 (decimal)
A maximum of 82 bytes are sent (with attached
EUI only 74 bytes). The response OK shows
successful transmission. Successful
transmission does not guarantee successful
reception. To make sure data has been
received by a specific node use a unicast
message. Only neighbours which are up to nn
hops away will receive the broadcast. If nn=01
only direct neighbours will receive the broadcast
and if n = 00 the entire network will (max 30
hops).
BCAST:<EUI64>,<length>=<data>
or
BCAST:[<EUI64>,]<length>=<data>,
<RSSI>,<LQI>
Every node in the PAN which has received the
broadcast message will prompt the above
message where <EUI64> is the address of the
sender and <length> is the length of the
message in hexadecimal. The EUI64 is only
displayed if it is part of the network header (set
bit 0 of S10 to disable attaching the EUI64 to
outgoing messages). RSSI and LQI are shown
if bit 6 of S0F is set.
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