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DTMF(Dual Tone Multi Frequency) Shield (Seeed Studio)

SKU: SS107990009

$54.33 AUD, inc GST
$49.39 AUD, exc GST

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DTMF(Dual Tone Multi Frequency) Shield (Seeed Studio)
54.33 AUD

SKU: SS107990009

$54.33 AUD, inc GST
$49.39 AUD, exc GST
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  • $6.95 Standard (2-4 days, tracked)
  • $8.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

The DTMF Shield for Arduino converts DTMF or Touch Tone signals into a format that microcontrollers (uC) or Arduino boards can understand. DTMF tones are analog signals that Arduino and most uC cannot read directly. This module converts those signals into a digital format that uC can easily read.
Here is the functional diagram of the DTMF Shield.
The DTMF Module is specifically designed to plug right into the Arduino boards, but it can also be used with a variety of microcontrollers.
Demo of DTMF Shield for Arduino

See other demo videos here
Note: some these videos show an earlier board version with no Arduino headers. The formal version of sale has headers to right into an Arduino board
  • Operating Voltage: 5v, Current draw: 3mA
  • Input signal range: 27.5 to 869mVrms  (-29 to 1dBm )
  • Trim pot for easy gain adjustment.
  • 3.5mm stereo audio jack (TRS) and 0.1″ standard interface headers
  • LED to indicate tone decoded
  • Dimension: 0.79″ x 2.16″, 20mm x 55mm
If you encounter any problems when using this product, please contact here for technical support or visit forum of dossant.
Documentation and Resources:

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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