Hi!, I’m developing a project where the Xbee is supplied with a battery. I need to track the supply voltage to the xbee, therefore exist in Xbee the possibility to read this voltage value using the AT command V%. The xbee is well configured and conected sucessfully to ZHA, but I don’t see how to get voltage supply value through ZHA integration. This service from xbee I thing is not listed in the device cluster and I haven’t found how to send and read AT commands using ZHA or if it is possible.
Thanks.
I supose “zha-device-handlers” (https://github.com/zigpy/zha-device-handlers) is part of the ZHA integration of HA by default . I follow the instruction according zha-device-handlers/xbee.md at dev · zigpy/zha-device-handlers · GitHub enabling the V+ parameter on my Xbee3. To do this I have followed the instruction from DIGI Manual Digi XBee® 3 Zigbee® RF Module - V+ (Supply Voltage Threshold). I have deleted and included again the xbee3 module into de zha network, but at the end I don’t seen any change, it should appear a sensor showing the supply voltage, but nothing new,. Here the list the sensors inputs ( the analog input with 44.6 is the humidity sensor): 
Now, it works. I have change the V+ parameter to 3.300 mv ( C3E), if the supply voltage is lower ( my case with 3V), then the xbee starts to report the supply voltage. I had followed the DIGI instruction setting this parameter to 1( " Set V+ to 1 to always include the supply voltage."), but is doesn’t work setting V+ to 1 in my case.