I have installed RfxTrx and a few NEXA products. I.e I have 3 LMDT-609 and i Vera UI5 i looks like I got 12 RFX Remote L2.0/XXXX. Can anuone explan how I shall recognize the sensors and how I shall do the settings?
I have used RFXtrx (USB, 433 MHz) for some time but only with switches and dimmers so I am not sure how it works with LMDT-609 that is a motion sensor and I have now replaced my Nexa devices with Z-wave switches and is only using it to monitor Oregon Scientific temperature sensors.
However I assume that you normally would have the LMDT-609 to control a switch directly like the EYCR-2300 or similar. The setup then would be that you put the switch in learning mode and then use the SET button on the LMDT-609 to send its id so that the switch would learn it.
To get Vera to identify Nexa devices you would first need the check that RFXTrx hardware is setup with the AC protocol enabled (that Nexa is using). That is probably ok already since you have a lot of devices that is generated by the RFXtrx plugin.
To get Vera to identify your LMDT-609 you should check that the plugin is set to AutoCreate 1 (scroll down in the Advanced tab). Then you use the SET button on the LMDT-609 and the plugin will create a new device (probably a switch).
You have a lot of RFXtrx devices on your Vera but I dont know if you really have all those devices? If the plugin is set to AutoCreate it will pick up every device it can (when the device is used) and include it. This could be your neighbours? devices or you just pushed the buttons on the Nexa remote?
If the RFXtrx devices on your Vera isnt yours then just delete them and then setup the LMDT-609. Once done set to AutoCreate 0 so that the plugin doesnt add devices by itself.
Lycka till 
I have also installed RfxTrx and a few NEXA products. The Vera Lite identifies them all just fine, except the LMDT-609 Motion Detector and the LML-711 Button with the LMLR-710 Doorbell.Any idea how to get them to be registed as a device??? RFxtrx device has alpha 5 /firmvare v69.
Alpha 5 is a very very very old version…
Where do i download the latest version?
All info is in the topic at top of this sub-forum.
I’v now updated to beta 3 and it sucsessfully detected doorbell Button.However it still doesn’t seem to detect LMDT-609 Motion detector…Any sugestion how to get this to work with the Vera Lite and not just within the Nexa System?
Is the LMDT-609 Motion detector received in RXmngr (on a Windows PC) when the AC or the ARC protocol is enabled?
I’m not able to enable the ARC protocol…
You should enable only the protocols you need!
If you enable lighting4 it will disable ARC.
Do not enable all protocols because this makes the RFXtrx less sensitive, see chapter 2.4 in the RFXtrx User Guide.
Ok i now disabled all of what i don’t use and the Arc protocol i enabled.Still not detecting it:(
b_weijenberg asks the good question:
Is the LMDT-609 Motion detector received in RXmngr (on a Windows PC) when the AC or the ARC protocol is enabled?
Sorry i ask stupid questions, but i’m just starting to learn this. 
I’v now installed the RFXmngr and i’m not quite sure where to look, but when i trip the sensor the connected light turns on and it shows up in RFXmngr(but this is possible only the light) ???
Greatfull for any help with this
In the Vera, you should get a light switch with id looking like LS/L2.0/3DFABFA/16. You just have to convert the device type to a motion sensor from the tab named “managed devices”.
Have you this device ?
:)Thank’s a lot.
After a little while i found the Managed Device tab and changed the device type.
Works just fine now.
Moving on
? also have a few wireless smoke alarms from Nexa type KD-128c.Is it possible to get this to connect as well?
My Kd-101 smoke detector shows up without Any problem
Probably not but try with Rfxmngr to check if messages are received and decoded.