User guide

RN Commands Version 4.25, 11/1/2007 Page 12 of 25
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IR<time> performs an inquiry scan, with a COD of 0x001F00, which is the default COD for
Roving Networks Serial adapters and modules.
IS<time> performs an inquiry scan, with a COD of 0x0055AA, which is the special COD used
By Roving Networks Serial adapters and modules to enable “instant cable replacement”.
H - help, will print out a list of commands and their basic syntax
K, Kill (disconnect) from the current connection.
P,<char> Pass thru, sends any chars along up to a CR or LF while in command mode.
Q - Causes device to be non-discoverable and non-connectable (temporarily). Does not survive a
power cycle or reset. Used with the Z command below.
R,1 forces a complete reboot of the device (similar to a power cycle)
T,<0,1> Pass receive data (from uart or BT) while in command mode. Returns (T=0 , T=1 based on input).
& - returns the value of the switches on BluePort, or value of PIO3,4,6,7 on other modules.
Z - Enters low power deep sleep mode (<2ma) when NOT connected. Can only be exited by toggling
the RESET pin on the module (causing a HARD reset) , or power cycling the device. To get the
lowest power mode, first issue a Q, then a Z. Use the SNIFF settings to get lowest power while
connected.
Limitations of using 7 Bit data mode
Roving Networks firmware now supports (from version 4.22 and on ) selectable 7 bit data mode, using the “S7,1” command.
Unfortunately the Bluetooth hardware does not support 7 bit data, so this function is accomplished in the firmware application.
While completely functional, the performance in 7 bit mode is less than ideal, because software emulation is required to make
this work. Hence, there is a noticeable latency and character per second processing limit in this mode. Therefore it is not
recommended that this mode be used if the desired serial baudrate is greater than 9600 baud.