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Collin Schulz DTMF Shield


Photo credits: unknown

Shield URL: DTMF Shield
Tags: dtmf, audio, input
Maker: Collin Schulz

A simple Arduino shield to decode DTMF (Dual-Tone Multi-Frequency) tones using an audio input. This shield can reliably control an Arduino via ham radio.

Open Source: Unknown
License: Unknown
Source: Unknown
AREF
GND
D13 / SCK
D12 / MISO
RESET D11 / MOSI ~
3.3V D10 / SS ~
5V D9 ~
GND D8
GND
VIN D7
D6 ~
A0D5 ~
A1D4
A2D3 ~
A3D2
A4D1 / TX
A5D0 / RX
Note:
The shield doesn't appear to use any I/O lines in particular, but has them all brought out to a patch-bay area so they can be selected by the user. I don't know how many are required.

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