The current system can be expanded to include multiple features:
You can start saving the time duration in which a particular appliance was on or off, and then provide a detailed analysis to the user. You can also use this information to calculate the energy being expended by these appliances.
You can utilize the current measurement sensors to calculate the power load at each port. Combining it with the time the device was on, you can calculate very comprehensive power usage to further improve power management.
You can use the system clock with the motion sensor to intelligently turn off the appliance during nights and periods of no activity.
The Tweet-a-PowerStrip project can be interfaced with the remote home monitoring system that we developed in the previous project, in order to obtain useful information from other sensors being used in the same house.
One of the modifications you can easily implement is to utilize Twitter's private messages...