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Cell phone and BS2 — Parallax Forums

Cell phone and BS2

ABozABoz Posts: 1
edited 2010-05-06 14:02 in BASIC Stamp
I am working on a project were we would like to use a cell phone connected to a BS2 in a remote location and transmit data to another cell phone that would possibly be connected to a computer so we could recover the data.
·Does anyone have any good starting points on how to accomplish this?

Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2010-05-06 14:02
    You have several choices. There are cell phone modules you can buy like this (www.sparkfun.com/commerce/product_info.php?products_id=9607) that can be adapted for use with a Stamp.

    You could also "hack" a cheap cell phone by wiring reed relays across the various pushbuttons of the cell phone and activating them from the Stamp using some kind of I/O expander like the TPIC6595. You could use the DTMF (Touch-Tone) tones to carry the information and some kind of DTMF decoder on the other end driven by a microphone next to the cell phone's speaker. You could set the cell phone's ring tone to something easily decoded like a sequence of DTMF tones and the Stamp could answer the phone.
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