Building an interface to receive data from a smart meter (slimme meter) directly from the p1 port and send this data wireless (IEEE 802.15.4 - LR-WPAN) to a receiver which is connected to the internet. This interface makes it possible to view and record the energy consumption in intervals of ten seconds. The interface consist out of, at least, two modules using the JN5148 wireless microcontroller. The software is written in C and the JenNet protocol stack is used in the development of this application.