TouchTone Phone Controller

摘要

In the November '09 issue, I presented an uncomplicated, but highly reliable phone-controlled device - the Ring-A-Thing.1 Connected to any phone line, the user would call, exactly allowing a pre-set number of rings to occur. Each was associated with turning an electrical device on or off, then immediately hanging up the phone. The controlled device would then be activated within a few seconds. The project presented here, is similar in purpose, but offers the ability to control multiple electrical devices through wireless means by pressing associated numbers via a Touch-Tone phone.