Check out this handy DTMF remote control interface from EmilioFicara. Turn relays on and off with sound.

Adam Flaherty

Adam Flaherty

I make cool stuff and write about other people making cool stuff on If you have something you think I should see, send me a tip.

  • sharpfang

    Any phone which can do DMTF should be capable of doing that, even old analog wired phones.

    ps. your OpenID login system is broken.

    • Carnes

      That might just be the phone he has. I recently “upgraded” to a used Blackjack that looks similar to his phone. After manually upgraded WinMo, the phone is a decent hacker platform.