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All things pertaining to wireless and RF links
By rapjr
#33695
Hi,

According to the BlueRadios AT command summary it should be possible to
reset the passcode for a WiTilt 2.5 for pairing by putting the radio modem into
command mode by issuing an escape sequence "+++<CR>". I've been able to
do this with a BlueSmirf module by sending the escape sequence via the
microcontroller UART, but BlueRadios documentation says this should also
be possible via the Bluetooth link and I (and others on the web) have found
it is not. I suspect this might be because the WiTilt responds to every
character you enter by redrawing the configuration menu. Has anyone
been able to reset a WiTilt passcode via the Bluetooth link? This would be
much preferable to having to reprogram the WiTilt microcontroller or hacking
a serial cable to the radio. The passcode needs to be changed because
all Nokia phones/pda's only allow numeric passcodes. The same is true
of all recent versions of Mac OSX. In the future, it would be useful if
SparkFun added an option to the configuration menu to change the passcode
or set it to a numeric code to start with. The Bluetooth standard says
letters are allowed for passcodes but major manufacturers are not in
compliance.

Ron
By rapjr
#33993
Looks like changing the WiTilt passcode can only be done by writing some code for
the microcontroller. Where can I find the WiTilt source code so I can restore it once
I've run my own program? I've found the BLoaderScreamer info and the source
code on the Roomba page, which is derived from the WiTilt source, but can't find the
original WiTilt source code. There is some code here but it doesn't look up to date
for Witilt v2.5:

http://www.sparkfun.com/datasheets/Acce ... ilt-v1.zip