Talking to a Kamstrup 685-382 electricity meter
My utility company provides me with ways to see historic consumption of electricity up to a few days ago. However, by that time I have long forgotten when, what and why I did to consume as I did. In order to save power and money on the utility bill, one needs to have some way of monitoring and discovering usage patterns *immediately* as they take place! When I saw you could buy cheap US$50 used industrial strength electricity meters in the form of the Kamstrup 685-382, I decided to buy a few of those. The idea was to have it installed as a secondary meter in my house and try to hook up some sort of communication interface, connected to a low power computer responsible for data acquisition, analysis and presentation. It has to be said up front, that I am far from the only one looking into this. On a Danish engineering discussion forum , I came by other people experimenting with the Kamstrup 382, except that none of the info I came by there seemed to apply to my version of the meter. ...