michlea,
This page at the X10 Knowlege Base WIKI covers resetting and then learning codes:
X10 Knowlege Base WIKI: Setting Up and Learning with VCR CommanderThings to understand:
1. The motion sensors communicate to the VCR Commander with an RF (radio) signal, not an IR (infra-red light) signal, so
they only have to be near enough to the VCR Commander for it to pick up the RF signal (even works through walls, etc.).
2. Once in the "Learn a motion sensor" mode, the VCR Commander will learn the first X10 RF signal it hears, so
all other
X10 RF devices (Palm-pad controllers, keychain remotes and other Motion Sensors)
must be kept silent !
3. As with any X10 setup involving motion sensors, you
must skip a unit-code between motion sensors because each
one uses the unit-code you set to say; "I saw motion" and the next unit-code up to say; "It got dark out". So, if the
first motion detector is set to "A1", the second should be set to "A3"!
4. The battery powered X10 motion sensors "forget" their address when the batteries get too low or are removed (like
you have to do to get at the screw hole to mount them to the wall)!
5. I am less certain of this one, but I
think that X10 "security" motion sensors may not be compatible with the
VCR Commander.
(Hopefully someone else can chime-in on this one!)I hope this helps at least somewhat.