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BS2 DTMF Decoder

The project builded with the
BASIC Stamp 2 OEM
Module My second project is a
DTMF decoder using a CD22204E. The DTMF (dual tone multi frequency) is the
signal to the phone company that you generate when you press an ordinary
telephone's touch keys or, the keys used by some AMATER RADIO services.
The Basic Stamp 2 script:
Download the script

Download the
source code for visual basic 6
The electronic Diagram:

Connection Diagram


The kit #28102 available at
Abra-electronics |