This is an implementation of the Kamstrup Meter Protocol (KMP) based
on reverse engineering of a traffic dump.

There is very little information about this protocol on the net, and
despite calling it an "open protocol", Kamstrup has not wanted to
release the documentation for it to me.

Tested on a Kamstrup 382J electricity-meter using a home-built
optical head.

Enjoy,

Poul-Henning

PS: Sample output:

Energy in (kWh)           6745
Energy out (kWh)          0
Energy in hi-res (kWh)    6745.4191
Energy out hi-res (kWh)   0.0
Voltage p1 (V)            229
Voltage p2 (V)            226
Voltage p3 (V)            232
Current p1 (A)            5.58
Current p2 (A)            1.69
Current p3 (A)            2.36
Power p1 (kW)             1.029
Power p2 (kW)             0.322
Power p3 (kW)             0.438