I can't remember if I posted this or not, but here is my working config with HEM v1 USB powered on UI5
Firmware version 3.67 is posted on wiki, but not on Aeon's own web site. Download link can be found at:http://wiki.micasaverde.com/index.php/Aeon_HomeEnergyMonitor
Do not add the Energy Plugin. It's pretty useless and others report performance issues.
Once device is added in Vera, navigate to Device Options:
Need to configure as USB powered (not battery), disable deltas, set a single report group to send all values every 20 seconds.
3 1bD 0 (disable deltas)
101 4bD 0 (report group 1 disabled)
103 4bD 6926 (report group 3 all settings) <-- defaults to 4bH which is a typo by the developer, change to 4bD
111 4bD 720 (report group 1 every 720 seconds)
113 4bD 20 (report group 3 every 20 seconds)
20 mon (verify is 1 = USB power)
12 mon (verify is 0 = battery related)
102 mon (verify is 0 report group 2 disabled)
112 mon (verify is 720 report group 2 interval)
Then save, go back to device and click configure node right now.
How to calibrate KWH... the method is exact, but the results are far from perfect. I recommend doing this a few times and finding a value that tracks as close as you can get it.
Vera 235.2970 KWH
Meter outside house 4991 KWH
Vera 272.6540 KWH
Meter outside house 5021 KWH
Vera 37.357 KWH
Meter outside house 30 KWH
Approx 24% too high (37.357 / 30)
120 /1.24 = 96.36
Change Voltage from 120 to 97, i.e. Device option Variable 1, update from 120 to 97.
Configuring Register 101-103 for HEM Gen 1 and Gen 2 http://forum.micasaverde.com/index.php?action=dlattach;topic=3366.0;attach=21720;image
Binary to Decimal to Hexadecimal Converter:
Full developer manual: http://www.pepper1.net/zwavedb/uploads/resources/e0b35c0e67818e05ae869d08ec5b236709fcebad.pdf
Another useful link. Most of the values described are incorrect, hence the importance of using the chart and binary converter: http://forum.micasaverde.com/index.php/topic,3366.msg94937.html#msg94937
I may do a dedicated post with this info, which I feel is pretty rock solid.