Our meter-board design is finally ready for beta-tests. Some beta units are going to be shipped to our exigent testers along this week so we can say that panStamp's energy meter will be commercially available very soon.
Figure 1 : meter board with enclosure and current sensors
This new version uses all the available analog pins on the panStamp to measure AC voltage (1 input) and AC current (7 inputs). Moreover, this version adds a fourth pulse input for further connectivity with existing energy/water meters.