Power Cord User Interface Design.

Using the power cord as a user interface, UI, from the MIT Tangible Media Group, is interesting in many ways:

• Transparent design ala Norman.
• Energy monitoring and such (why not also put in a current monitor?).
• Microcontrollers and embedded systems. Related to IoT

Have always been in favor of cables... Like 802.3af Power over Ethernet, Standard USB power.